Commissioning work at the facility. Certificate of completion of commissioning

Commissioning are works related to setting up, checking and testing various electrical equipment after completion of electrical installation work during capital construction in order to ensure the further correct and continuous operation of electrical equipment after its commissioning. Commissioning and commissioning of electrical installations is usually carried out in several stages.

Commissioning program

1. At the first (preparatory) stage, on the basis of the project or customer data, a program and a list of commissioning works are prepared. Already at this stage of commissioning, shortcomings in the project documentation, inconsistencies in the characteristics of the purchased equipment with the requirements of the project and the conditions for further operation, which can lead to untimely delivery of the facility and violations in its operation, can be identified and eliminated.
2. At the second stage, commissioning works are carried out, combined with electrical installation work with voltage supply according to a temporary scheme. At this stage, the installed equipment is transferred to commissioning, individual devices, circuits and functional groups are checked. For example, commissioning and testing with increased voltage on already installed cable lines. Based on the results of work at the second stage, the customer is issued test reports for equipment with increased voltage, reports for checking the grounding of electrical equipment, reports for setting up relay protection devices and protective switching equipment. Also at the second stage, the commissioning organization prepares and transfers to the customer a set of executive circuit and single-line diagrams of electrical equipment switched on under voltage.
3. At the third stage, the so-called individual tests of electrical equipment are carried out, that is, tests related to the supply of voltage in a constant circuit to verify the operation and clarify the performance of electrical equipment, but not related to ensuring the launch of a continuous technological process. At this stage, the commissioning organization fine-tunes the characteristics of electrical equipment, testing of control circuits, protection and signaling blocking circuits, as well as testing of the operation of all electrical equipment at idle, the operation parameters of relay protection and automation devices are specified, the parameters of frequency converters are specified, thermal relays, automatic switches, KRM devices. After the individual tests electrical equipment is considered accepted for operation. At the same time, the commissioning organization transfers to the customer test reports of electrical equipment with increased voltage, checks of grounding devices, updated maps of protection operation settings, as well as executive principal electrical circuits necessary for the operation of electrical equipment.
4. At the fourth stage, a comprehensive commissioning of all engineering systems is carried out, while work is carried out related to ensuring such an operating mode of the electrical installation in which the parameters of the technological mode and output specified by the project are achieved. At this stage, the interaction of electrical circuits and electrical equipment systems in various operating modes is adjusted, the electrical installation is tested according to the complete scheme at idle and under load in all possible modes. This stage is also called integrated testing. Start-up and adjustment works are considered completed after the electric equipment receives the electrical parameters and modes provided for by the project, which ensure a stable technological process of production.

What is included in the complex of commissioning works

Depending on the equipment to be installed, the complex of commissioning works on power supply may include the following types of work:

• Analysis of project documentation.
• Supervision of the progress of electrical work.
• Verification of compliance with the actual circuit diagrams electrical equipment project.
• Checking and setting automatic switches up to 1000V.

• Measurement of insulation resistance of wires, cables, electrical machines and devices.
• Checking the operation of residual current devices RCD.
• Measurement of the impedance of the phase-zero circuit.
• Checking the metal connection of grounded equipment with the ground loop.
• Measurement of resistance to spreading of ground loops.
• Checking and setting up thermal relays, time relays, voltage and phase control relays, checking intermediate relays.
• High-voltage testing of electric motors, power and instrument transformers, cable lines, sections of busbars, insulators, vacuum and oil circuit breakers, disconnectors.
• Tests of overvoltage arresters (OPN) and arresters.
• Testing and adjustment of reactive power compensation devices KRM.
• Adjustment of power and measuring transformers.
• Adjustment and testing of electric motors.
• Adjustment and testing of VFD frequency converters.
• Setting and testing of microprocessor and electromechanical relay protection devices.
• Adjustment of oil, vacuum and SF6 circuit breakers with voltage above 1000V.
• Creation and adjustment of the logic of operation of microprocessor relay protection terminals.
• Checking and configuring ATS devices, etc.

Commissioning rates

To clarify the final cost of commissioning of electrical work, either project documentation or a list of electrical equipment to be installed is required. So, at present, in Moscow, the estimated cost of organizing and performing commissioning work on a 6-10 kV switchgear cell is from 15 tr. up to 100 tr. for one cell.

Commissioning works in the electrical laboratory ProfEnergia

We carry out commissioning with further warranty service.

Our licenses allow us to carry out all the necessary measurements and tests, and letters of thanks confirm the high level of services rendered.

Start-up cost

Commissioning works from 15 000 rub.

Do you have any questions?

For consultation on questions of interest, or to fill out an application, please contact us by phone.

Commissioning is an important stage of construction before putting the facility into operation. In the process of carrying out the commissioning work, routine adjustment and testing of equipment to ensure its safe operation throughout its life.

Specialists of OOO "Neftegazinzhiniring" are experienced engineers in the field of adjustment of electrical equipment for various purposes. Thus, we carry out commissioning of the following facilities: boiler plants, heat points, heat power plants, oil and gas processing and separation plants, gas use and gas distribution facilities, autonomous gas supply, ventilation and heating systems, dosing devices for reagents, etc. You can check the full list of objects by calling 8-800-333-95-62.

Commissioning and commissioning can be carried out both as part of complex works on the design and installation of facilities, and separately on equipment not of our production and installation.

Stages of commissioning

Commissioning is a set of measures that allows you to put the object into operation and without which it is impossible to check the coherence of all engineering systems after the completion of construction and installation works.

The task of the NDP are a comprehensive check of the correctness of the installation work, detection of factory defects in electrical equipment, setting up the operation of equipment in the maximum load mode and changing the technical parameters of electrical equipment to design consumer values. In case of detection of deficiencies in the installation performed by a non-construction and installation department of Neftegazengineering LLC, our specialists will select the most suitable equipment and, if necessary, correct the regime settings.

Diagnostics and adjustment of equipment guarantee the Customer reliability and uninterrupted operation of devices subsequently.

Commissioning begins with the preparation of an estimate for commissioning and the development of a commissioning program, which contains the entire scope of work required at a particular construction site.

AT typical scope of work for commissioning includes the following types of work:

• preparatory work on familiarization with the equipment, drawing up an estimate of commissioning and their list, checking the compliance of the technical parameters of the equipment with design requirements and values
• trial run to check the operability and functionality of individual devices, equipment and block diagrams with their output to operational values
• complex testing and testing of equipment to check the performance of electrical equipment at maximum loads, testing of equipment at idle and under simulated force majeure circumstances
• regime adjustment and adjustment of the interaction of equipment and all engineering systems of the facility with the launch of a constant technological process, checking various operating modes

2.1. The commissioning can be divided into eight stages, which differ in the technology of their implementation.

2.1.1. Preparatory stage.

2.1.2. Pre-assembly revision and verification of equipment: machines and mechanisms, devices, fittings, controls and information presentation.

2.1.3. Element-by-element acceptance from installation and individual testing of equipment.

2.1.4. Unit acceptance from individual tests (including the necessary control of the completeness and quality of installation) of the equipment of functional units.

In accordance with SNiP 3.05.05-84, SNiP 3.05.06-85 and SNiP 3.05.07-85, the stages of element-by-element acceptance from installation and individual testing of equipment do not coincide in time for various kinds equipment and this difference can be quite significant. Nodal acceptance serves to check the readiness of the entire variety of node equipment for node-by-node adjustment at the time it begins.

2.1.5. Unit-by-unit start-up (hereinafter “start-up”) adjustment of functional units on idle equipment (cold commissioning) and their testing under load. Transfer of functional units from commissioning to operation mode, to check of construction and installation readiness and to unit-by-unit complex adjustment on operating equipment.

2.1.6. Testing of a block (or a separate boiler unit, turbine unit) with synchronization (or without it for a separate boiler unit) and a set of loads to check its complete construction and installation readiness.

2.1.7. Unit-by-unit complex (hereinafter “complex”) commissioning and testing of functional units, including subsystems of automated process control systems and the operational circuit of the block control panel for testing equipment modes. Pilot operation of functional and technological units, including the monitoring and control system, detection and elimination of defects, transfer of functional units to commercial operation. Carrying out a comprehensive testing of the block (installation).

2.1.8. Acceptance of the unit (installation) for operation by the state commission with the necessary tests of power equipment and with the execution of the relevant act.

2.2. Two fundamentally different types of organization of commissioning work on equipment are envisaged:

works carried out by specialists of the same profession (thermal mechanics, electricians, APCS specialists, etc.), assembled into teams and performing adjustment operations almost independently of specialists from other professions;

work carried out by integrated junction teams (hereinafter referred to as "nodal teams"). Each node team includes workers of all professions necessary for the adjustment of this functional and technological node.

2.2.1. The first type of organization of work is applied:

During pre-installation revision, verification, element-by-element acceptance from installation and individual testing of equipment;

At the initial stage of the complex adjustment of units, when it is advisable to carry out the initial assurance of the reliability of the equipment in the design volume separately by its types.

2.2.2. Starting from the stage of node-by-node acceptance from individual testing and up to the acceptance of the unit (installation) by the state commission (with the exception of the initial stage of complex adjustment), commissioning is carried out by nodal teams and organized by complex working subcommittees.

2.2.3. The nodal team is organized by the decision of an integrated working subcommittee during individual testing of equipment from among the leading specialists of organizations performing installation and commissioning work at this functional node under contracts: to perform commissioning work, the nodal team may additionally be assigned employees from the assembly and commissioning organizations.

The nodal team is headed by a foreman appointed from among the highly qualified specialists of the leading commissioning organization for the node, the customer, the research organization or the equipment manufacturer.

The foremen of the nodal teams, and, if necessary, the entire composition of the nodal team, are appointed by order of the customer or (when the facility is delivered on a turnkey basis) by the general contractor.

The foreman of the nodal brigade and the brigade subordinate to him can perform commissioning work at two or more functional nodes.

2.2.4. The integrated working subcommittee includes workers of all specialties necessary for the organization and acceptance of work at the site.

The composition of the complex working subcommittees includes: foremen of the respective brigades; representatives of the customer, equipment manufacturers, general designer, general contractor, heat installation, electrical installation, leading commissioning and research organizations. Representatives are selected by the heads of production departments of the relevant organizations at the request of the chairman of the integrated working subcommittee.

The chairmen of the complex working subcommittees are appointed by the order of the customer or, upon commissioning of turnkey facilities, by the order of the general contractor from among the experienced and competent specialists of the customer or (in agreement with the management) of the leading commissioning organizations for this unit, research organizations, as well as equipment manufacturers. The same specialist may be appointed chairman of two or more integrated working subcommittees.

The chairman of the complex working subcommittee is a member of the working committee.

The appointment of chairmen and the creation of complex working subcommittees is carried out during the period of individual testing of equipment.

2.2.5. Working and state acceptance commissions are created in the manner and under the conditions corresponding to VSN 37-86 of the USSR Ministry of Energy.

Specialized subcommittees, organized by the working commission in accordance with VSN 37-86 of the USSR Ministry of Energy, can provide assistance to complex working subcommittees in accordance with their areas of activity.

Prior to the organization of the working commission, the customer can form workshop commissions for the acceptance of premises, equipment, etc.

2.3.1. Organization of pre-commissioning operations should provide for the “complexation” of units of a block or a separate installation, which is sequentially increased from stage to stage, with access to their full functional linkage during the period of complex adjustment.

2.3.2. The preparatory stage of commissioning begins after the release of working drawings. At this stage, the following is done:

Study and analysis of design and factory documentation, determination of compliance of design documentation with regulatory documents, standard solutions and best practices, development of comments and recommendations to eliminate deficiencies;

Drawing up a project for the production of commissioning, including safety measures;

Development and approval of work programs for commissioning and commissioning of equipment;

Preparation of a fleet of measuring equipment, testing equipment and fixtures, organization and equipment of an object laboratory, provision of workplaces with instruments, tools and instructional and methodological materials;

Drawing up a list of documentation, the execution of which is necessary at various stages of production and acceptance of commissioning work at each functional unit;

Development of the first edition of operating instructions.

Works under clause 2.3.2 are carried out by organizations participating in commissioning works in accordance with the coordination plan individually with the necessary mutual consultations.

2.3.3. At the stage of pre-installation revision and verification of equipment, machines, mechanisms, fittings, control and management facilities, the general operational and technical management is carried out by the customer in the person of the deputy chief engineer for repairs.

The procedure and scope of audits and inspections are established in accordance with the current rules and standards.

The audit is carried out by the relevant workshops of the power plant with the involvement of installation, repair and commissioning enterprises.

The workshops provide the organization of jobs for repair and adjustment personnel in the premises allocated for this purpose by the management of the power plant.

2.3.4. At the stage of element-by-element acceptance from installation and individual testing, the general operational and technical management is carried out by the deputy chief engineer of the power plant for installation.

The procedure for acceptance and individual testing is established, guided by the current rules and standards, by the heads of the power plant workshops together with the relevant heads of the teams of the head commissioning organization, heads of departments of construction, installation and commissioning organizations, and the chief personnel of manufacturing plants.

Adjustment works are carried out by adjustment organizations in accordance with the coordination plan. The workshops ensure the organization of workplaces for adjustment personnel in the premises allocated for the performance of these works by the management of the power plant.

The result of this stage is the execution of the act of the working commission on the acceptance of equipment after individual tests (Appendix 8).

The power supply for commissioning is carried out by the power plant in accordance with current regulations.

2.3.5. At the stage of node-by-unit acceptance from installation and individual testing of the equipment of functional units of the main and general plant equipment, the general operational and technical management is carried out by the deputy chief engineer of the power plant for operation.

Acceptance of functional units from installation and individual tests is carried out in a complex from construction, heat installation, electrical installation and commissioning organizations with consideration of the readiness of the unit in terms of construction, heat installation, electrical work and individual tests, with consideration of acts for hidden work and documents (acts, protocols, records in magazines) compiled during the audit of equipment, element-by-element acceptance, individual tests.

By the beginning of the unit-by-unit adjustment and unit-by-unit testing, the installation of the technological equipment of the unit must be fully completed; adjustment operations were performed on the technological equipment that do not require putting the equipment into operation; completed autonomous adjustment of sections of subsystems of automated process control systems included in this node in the amount of:

Special software for the subsystem for collecting and primary processing of information, the information base, the subsystem for presenting information, the subsystem for technological printing of programs for diagnosing technical means;

Information channels and signal reproduction panels;

Cabinets of control subsystems, interlocks, protections and alarms;

Schemes for controlling mechanisms, shut-off and control valves;

Cabinets of automatic control subsystem;

Cabinets (with checking them on simulators) of the functional group control subsystem (FGU);

The operational circuit of the block control panel and all communications within the block control panel.

Conducting node-by-unit acceptance of equipment from installation is carried out by an integrated working subcommittee.

As a result of this acceptance, an acceptance certificate is issued, approved by the chief engineer of the power plant. The form of the act is given in Appendix 9.

If in the process of acceptance of the assembly from the installation and individual tests, defects and imperfections are revealed, then the acceptance is suspended until they are eliminated.

The need to perform work not provided for by the project, factory instructions and other documents is documented by the act of the working commission.

2.3.6. At the stage of commissioning of functional units on idle equipment (cold commissioning) and their testing under load (with voltage supply, air, steam, water, oil with boiler kindling), node-by-unit acceptance into the subsequent comprehensive commissioning, general technical management is carried out by the Deputy Chief Engineer of the power plant for operation.

The commissioning of the node is directly carried out by the node team under the leadership of the foreman.

Works at the stage of commissioning and testing of functional units are carried out according to work programs approved by the chief engineer of the power plant.

Cold commissioning of a functional unit is considered completed if:

Performed all necessary calibrations of analog instruments and checks of factory settings;

The correctness of the passage of all analog signals from sensors to automation, computer technology, instruments and signaling devices was checked;

All protection and alarm settings are set;

The course of regulating bodies and electromagnetic valves is checked up;

The correctness of the passage of the signal of discrete devices and sensors used in protection, interlocking, automatic control and signaling systems to computer technology and its display means, individual devices, signaling devices and control devices was checked;

Engine torque limit switches and position indicators calibrated and tested;

Checked switching equipment;

The direction of rotation of the drives of technological mechanisms was checked;

The direction of movement of actuators and indicating devices was checked under control action;

The possibility of operational control from the control panel has been established;

The systems of protection, interlocks, signaling and logic control have been checked (as far as possible without the technological mode);

The direction of the impact of automatic control systems was checked, the calculated parameters of their settings were set;

General APCS software was generated and tested;

Special APCS software was loaded and tested on simulators (as far as possible without a technological mode);

The mechanisms were scrolled at idle, it was found that the parameters characterizing the state of the mechanism at idle are within the limits established by standards, factory, design and other regulatory and technological documentation. Completion of cold setup points is reflected in the "Journal of readiness of the node for testing under load". The log form is given in Appendix 10.

Testing of the unit under load is carried out after the completion of its cold adjustment.

The stage of commissioning and testing of equipment units ends with trial runs, during which the settings are adjusted, debugged, tested and put into operation (on the equipment included in the operation) of the subsystems of protection, interlocks, ARV, signaling, ACP, FGU and the subsystem for presenting information in volume , necessary to ensure the safety and reliability of testing a unit (or installation) in order to check its construction and installation readiness with taking the load, with its release into the operating mode and complex adjustment. Technical programs for testing functional assemblies under load specify the roles and responsibilities of operating personnel.

The organization of testing of the unit after the launch attack in order to accept it for checking the construction and installation readiness and for complex adjustment is carried out by an integrated working subcommittee.

If during the testing of the unit damage, defects or imperfections are revealed, then the testing is interrupted and carried out from the beginning after they are eliminated.

The completion of this stage for each node is documented by the node test report, approved by the chief engineer of the power plant. The protocol form is given in Appendix 11.

The unit is considered accepted for checking construction and installation readiness and for complex adjustment if there is an act of acceptance of the unit from installation and individual testing approved by the chief engineer of the power plant (clause 2.4.5), as well as a test report of the unit (Appendix 11).

2.3.7. Checking the construction and installation readiness of the start-up complex of a power unit or a separate unit is carried out according to a special technical program that provides for the start-up of equipment according to design schemes. At the same time, for a separate boiler unit, it is envisaged to obtain a pair of design parameters, and for a power unit and a separate turbine unit with a generator, synchronization and a set of electrical loads.

The program for checking construction and installation readiness is developed by the head commissioning organization and approved by its chief engineer and the chief engineer of the power plant. In the absence of a head commissioning organization, the program is developed and approved by the customer, involving installation and commissioning organizations in the development of the program.

Operational control of the equipment is carried out by the customer's operating personnel according to pre-developed operating instructions and a program for checking construction and installation readiness.

In accordance with the program, the personnel of installation, commissioning, research and development organizations and the chief personnel of equipment manufacturers take part in the readiness check in accordance with the program.

The chief engineer of the power plant is the technical manager of the verification of construction and installation readiness.

Upon completion of this stage of commissioning, an act is drawn up by the working acceptance committee on the acceptance of the equipment of the unit (installation) after checking the construction and installation readiness. Attached to the act is a list of defects in equipment, installation and construction revealed during testing, as well as a program-schedule for the complex adjustment of units and testing of a unit or a separate unit. The act is approved by the head of the superior instruction of the customer. The form of the act is given in Appendix 12.

Defects in equipment, construction and installation, identified during the verification of the construction and installation readiness of the launch complex, must be eliminated before the start of a comprehensive commissioning of the equipment.

2.3.8. At the stage of complex adjustment of units, unit-by-unit adjustment, testing (research) of equipment in various operating modes is carried out:

When the block or a separate unit is stopped with the inclusion in the operation of individual functional technological units;

During start-ups and shutdowns of a unit or a separate unit according to the program of commissioning tests;

When carrying an electrical load at a level specified by the adjustment program.

In the same period, repair and finishing work is carried out on the stopped equipment, defects identified in the process of adjusting the units are eliminated.

The program of complex adjustment of nodes provides for the first stage of separate work of specialists of various professions for the initial adjustment of certain types of equipment in order to ensure the reliability of the installation in the design volume, and then - the integrated work of the node teams created at the acceptance stage, under the technical supervision of foremen.

Completion of the adjustment of the nodes is documented by the nodal teams with protocols for conducting a comprehensive test of the nodes (in the required operating modes of the power unit, which are approved by the chief engineer of the power plant).

In the same period, a comprehensive adjustment of the subsystems of the automated process control system (including the operational circuit of the block control panel), their trial operation and transfer to commercial operation is carried out.

The operation of the equipment during the period of complex adjustment is envisaged according to separate programs, and electricity generation for this period is not planned according to the dispatch schedule.

During the complex adjustment period, the following is carried out:

Technological debugging of functional units during equipment operation in variable and stationary modes;

Carrying out and testing equipment launches from various thermal states according to the schedules of manufacturers;

Debugging information channels of discrete and analog parameters, as well as updating the information base based on the results of equipment operation;

Experimental determination of static and dynamic characteristics of equipment, inclusion of automatic control systems in the design volume;

Adjustment and adjustment of technological algorithms and programs for the complex of tasks of automated process control systems on existing equipment;

Adjustment of functional group control systems with adjustment of technological algorithms and FGU programs and blocking based on the results of launches;

Correction of operational technical documentation;

Development of control modes and interaction between operational personnel in the conditions of the existing automated process control system and in case of its failures;

Trial operation of a set of tasks and subsystems of automated process control systems with testing in variable and stationary modes of equipment operation, its verification for taking the maximum possible (within the design) and maximum continuous load;

Transfer of the start-up complex of tasks and subsystems of automated process control systems as part of the power equipment being put into commercial operation.

Comprehensive adjustment ends with a comprehensive testing of equipment with the execution of an act according to SNiP 3.01.04-87 (Appendix 2).

2.3.9. After the completion of work according to the program-schedule for the complex adjustment of a power unit or a separate unit and its comprehensive testing, the said equipment is accepted for operation. Acceptance for operation is carried out by the state acceptance committee with the appointment, if necessary, of control tests and trials.

Samples and tests are carried out under the technical guidance of the chief engineer of the power plant according to the program approved by the state acceptance committee. This produces:

Checking the operating modes of the boiler unit, turbine unit, generator, transformer and auxiliary equipment when operating on the main fuel and control algorithms for functional units in stationary and variable modes;

Comprehensive check of all subsystems of automated process control systems;

Examination joint work main units and auxiliary equipment at the maximum possible (within the design) load;

Other necessary trials and tests.

Upon successful acceptance by the State Acceptance Commission of a power unit or installation, an act of acceptance of the facility into operation is drawn up in accordance with SNiP 3.01.04-87 (Appendix 5).

Content:

An integral part of the production and technological process are narrowly focused special activities, known as commissioning. In the process of carrying out these activities, the equipment is checked for trouble-free operation and safety, the possibility of putting it into operation and bringing it to design indicators. First of all, the documentation of the project to be checked is considered. The equipment is checked and tested in case of possible failures and emergencies. In addition, this also includes a lot of additional work performed in the process of preparing and conducting individual tests of the entire equipment complex.

Procedure for commissioning

Commissioning is carried out after the installation of the equipment is completed. The main objective of these activities is to comprehensively test the installations being tested. During the check, the degree of their safety and reliability, compliance with the declared design characteristics is determined. Based on the results of the work, all identified shortcomings that impede the normal operation of the equipment are eliminated.

Installation and commissioning are carried out by specialized organizations with which the enterprise concludes a business contract. If the enterprise has trained engineering and technical personnel and the necessary instrumentation, then these works can be performed on their own. These employees belong to the category of operational personnel. They must take a course. After passing the exam, a protocol is drawn up and a certificate is issued for the right to perform commissioning. For workers, a re-test of knowledge is carried out annually, and for engineering and technical workers - once every 3 years.

Commissioning work ends with the preparation technical report, with a reflection of all completed stages, with conclusions and recommendations for further improvement of the operation of equipment and installations. Thus, this report is the main document characterizing the volume and efficiency of the work performed. Practical experience shows that the cost of start-up and adjustment activities pays off already in the first months of operation. For example, the results of calculations and comparative tests show that due to competently driven start-up and adjustment, fuel savings can be 3-5%.

To perform commissioning, a team of specialists is involved, which should be led by a qualified engineer. The number of workers is determined in accordance with the amount of work to be done, usually no more than 5 people. The main activities are carried out by engineering and technical workers, and the personnel of the enterprise are used for auxiliary work.

For each type of equipment, a commissioning program is drawn up, agreed with the management of the enterprise. During its development, the main attention is paid to practical experiments, during which individual nodes are tested, design flaws, the quality of the installation is determined. Great importance is attached to experiments to verify the reliability of all types of equipment, its ability to maintain set parameters. The maximum value of the performance of the unit, the stability of its operation at low loads is determined.

Such checks are carried out in sufficient numbers to draw up an indicative regime map, which takes into account the entire range of operational loads. To determine some parameters, instrumentation of the equipment itself is used.

In conclusion, the most important event is carried out for the comprehensive testing of equipment and its inclusion in the work. This operation is carried out only with the permission of the head of the adjusting group. No one should interfere with his orders, except when there is a threat to the safe operation of the equipment and maintenance personnel.

Electrical commissioning

Commissioning works are carried out at the final stage of electrical work. During this period, electrical equipment is tested and checked for compliance with the project, the current PUE, technical specifications and documentation of the manufacturer. All units must comply with the declared technological indicators. After all settings, testing and testing have been carried out, conclusions are issued on the operability of the entire installation and each of its components.

Our organization in a short time and with high quality will perform a wide range of such works, including commissioning of the electrical equipment system. The company's specialists will carry out activities in several stages:

• Receipt from the customer and careful study specifications installations, technical documentation and the electrical part of the project, its relationship with technological processes.
• Preparation of a work program and a project for the implementation of commissioning, including activities related to safety, their coordination with the customer.
• Analysis of the finished documentation, identification of shortcomings and other comments.
• Preparation of instructions technological maps and guidelines for setup. Particular importance is attached to protocols and other forms of reporting documentation, preparation necessary tools, appliances and fixtures.

After the preparatory period, commissioning activities are carried out jointly with. A temporary circuit is used to supply voltage to the equipment. When combining work, special attention is paid to compliance with safety regulations. By this time, in the premises with electrical equipment, the implementation of all construction works, heating, lighting and ventilation. The electrical equipment itself is already installed and grounded. Wells, openings and cable channels were closed.

At this stage, the installed electrical equipment is tested by applying voltage through test circuits to individual devices. When performing this operation, electrical installation personnel should not be in the adjustment area. If defects in electrical equipment are detected, they are eliminated by the customer, and installation errors and shortcomings - by the electrical installation organization. Based on the results of the second stage, the employees of the company draw up the following documents:

• Protocol of tests and measurements of insulation.
• protocol.
• Protocol for setting up protections and relay-contactor equipment.
• Executive diagrams of objects subject to power supply, connected to voltage.

At the next stage, individual tests of electrical equipment are carried out, in which the voltage is supplied according to the normal operating scheme. First of all, for electrical installations, the operating mode is entered and personnel permits are issued in accordance with safety regulations. After that, the adjusters adjust the equipment parameters, test protection, control and signaling schemes. Before testing technological equipment, it is necessary to set up and check the operation of electrical equipment at idle.

After the company's specialists conduct individual tests, the electrical equipment will be considered accepted for operation. Based on the results of the tests, all the necessary documents will be drawn up and transferred to the customer:

• Test protocols for grounding and zeroing.
• Test protocols for electrical equipment at high voltage.
• Principal executive schemes, as in the previous stage.

The rest of the documentation is provided to the customer within two months after the equipment is put into operation. For objects of increased technical complexity, this period is extended to four months. At the end of this stage, an act of technical readiness is drawn up for conducting a comprehensive testing of electrical equipment.

Comprehensive testing is carried out according to special programs agreed with the customer. During this event, the interaction of electrical equipment systems and electrical circuits in various operating modes is checked. Parameters in separate devices and functional groups are regulated and adjusted, their mutual connections are provided, the specified operating modes are created. Electrical installations are tested according to the full scheme, which makes it possible to prepare and conduct a comprehensive testing of technological equipment.

Equipment commissioning

In order to put the mounted process equipment into operation, it is necessary to perform commissioning work. The volume of these activities can be up to 20% of the entire project. These works are carried out at the final stage, before putting the equipment into operation.

In our organization, we qualitatively and quickly perform commissioning of all major types of equipment. The company's specialists will carry out the following activities:

• Check the compliance of the project documentation with the actual execution.
• They will prepare and test technological lines.
• Perform revision, testing and calibration of various instruments and automation.
• Individual components and assemblies, auxiliary systems will be checked by testing method, dynamic equipment will be run in.
• Organize activities for the complex testing of the facility and its commissioning.
• Conduct staff training for the subsequent operation of the equipment.

As a rule, the organization of commissioning works at any object is carried out at the last terms of construction and installation works. Already during this period, engineers discovered possible inconsistencies between the design documentation and the installed equipment. Because of this, malfunctions may occur in the future, so it is very important to eliminate all shortcomings in a timely manner. This stage is of great importance and guarantees the reliable operation of the facility in the future.

Our commissioning organization offers a full range of services, from the adjustment of individual technological elements to complex facilities various industries.

Commissioning (CPR) - a set of works on checking, setting up and testing electrical equipment. Their purpose is to provide electrical parameters and modes specified by the project. Commissioning of electrical devices is carried out in four stages (stages).

At the first (preparatory) stage:

the commissioning organization must:

Develop work program and a project for the production of commissioning works;

Submit comments on the project to the customer;

Prepare a fleet of measuring equipment, test equipment and fixtures;

the customer must:

Issue to the commissioning organization two sets of electrical and technological parts of the project approved for work, a set operational documentation manufacturers, relay protection settings;

Supply voltage to the workplaces of the adjustment personnel from temporary or permanent power supply networks;

Appoint responsible representatives for acceptance of commissioning works;

Coordinate with the commissioning organization the timing of the work;

Allocate premises for adjustment personnel at the facility and ensure the protection of these premises.

At the second stage:

commissioning organization should:

Carry out commissioning work combined with electrical installation work, with voltage supply according to a temporary scheme, checking the installed electrical equipment by applying voltage from test circuits to individual devices in the absence of electrical installation personnel in the adjustment area;

Transfer to the customer in one copy the protocols for testing electrical equipment with increased voltage, grounding and protection settings, as well as make changes to one copy of the circuit diagrams of power supply facilities that are switched on under voltage;

the customer must:

- to approve with design organizations questions on the comments of the commissioning organization;

Temporary power supply in the production area of ​​the NDP, revision of electrical equipment;

Replacement of rejected and supply of missing electrical equipment;

Verification and repair of electrical measuring instruments;

Elimination of defects in electrical equipment and installation, identified in the process of commissioning;

Delivery of electrical equipment to the place of adjustment and upon completion of commissioning - to the place of its installation in the installation area.

At the third stage Commissioning activities are being carried out individual testing of electrical equipment. The beginning of this stage is the introduction of the operating mode at this electrical installation, after which the commissioning should be related to the work carried out in the DEU.

At this stage, the commissioning organization adjusts the parameters, protection settings and characteristics of electrical equipment, testing control circuits, protection and signaling, as well as idling electrical equipment in preparation for individual testing of process equipment.

During the production of commissioning works according to a combined schedule working area should be considered the space containing the test circuit and electrical equipment that can be energized from the test circuit. Persons who are not related to the production of commissioning are prohibited from accessing the working area.

At the third stage of commissioning, maintenance of electrical equipment, execution of work orders and admission to the production of commissioning works is carried out by the customer, who ensures the deployment of operational personnel, assembly and disassembly of electrical circuits, as well as technical supervision of the state of electrical and technological equipment.

After completion of individual testing of electrical equipment, individual testing of technological equipment is carried out. The commissioning organization during this period specifies the parameters, characteristics and settings of the protection of electrical installations.

After carrying out individual tests, electrical equipment is considered accepted for operation. At the same time, the commissioning organization transfers to the customer the protocols for testing electrical equipment with increased voltage, checking grounding and grounding devices, as well as executive circuit diagrams necessary for the operation of electrical equipment. The remaining protocols for the adjustment of electrical equipment are transferred in one copy to the customer within two months, and for technically complex objects - up to four months after the object has been accepted into operation.

Completion of commissioning at the third stage is documented by an act of technical readiness of electrical equipment for comprehensive testing.

At the fourth stage Commissioning under the approved programs is carried out comprehensive testing electrical equipment serviced by the customer. These works include:

Providing mutual connections, adjusting and setting the characteristics and parameters of individual devices and functional groups of the electrical installation in order to ensure the specified operating modes on it;

Testing of the electrical installation according to the full scheme at idle and under load in all modes of operation in order to prepare for a comprehensive testing of process equipment.

The commissioning at the fourth stage is considered completed after the receipt of the electrical parameters and modes provided for by the project on the electrical equipment, which ensure a stable technological process for the production of the first batch of products in the amount established for the initial period of development of the design capacity of the facility, and also subject to the signing of the commissioning acceptance certificate.