6.1 Operational tests of generating sets or power plants are carried out in order to check the performance of the design of the generating set, the maintenance and repair system, to check the stability of indicators during long-term operation, including power and efficiency reduction, as well as to determine reliability indicators.
6.2 The electrical units or power plants intended for operation must be preliminarily modified according to the recommendations given in the acceptance test report.
6.3 Operational tests are carried out by a commission appointed by order of the manufacturer and agreed with the developer and the customer.
6.4 Programs and methods of operational tests are developed and approved by the developer and agreed with the customer. The development of a program and methodology for operational tests is carried out in accordance with the requirements of Section 3 and using a standard program (Appendix B).
6.5 Elimination of deficiencies identified as a result of testing is carried out by the manufacturer.
6.6 Operation and maintenance of electrical units or power plants at the place of operation is carried out by specially trained service personnel in accordance with the operation and maintenance instructions and the rules for the technical operation of the ESS. The manufacturer carries out technical (supervisory) supervision of operation with the help of its representatives. Repair maintenance is carried out by the personnel of a specialized organization of the customer under the technical guidance of the manufacturer.
The total time of operational testing of prototypes of electrical units can be half of the complete overhaul cycle in accordance with GOST 29328 for electrical units with a gas turbine engine (hereinafter referred to as GTE) of at least 12.5 thousand hours.
The test results are documented in an act and a protocol, which includes a list of measures to eliminate the identified shortcomings. The act is approved by the management of the enterprise-developer, manufacturer and customer. The activities specified in the act and the protocol are implemented by the manufacturer at the electrical units and power plants that have been produced by this time and are newly manufactured according to the schedule and in the amounts agreed with the customer.
( recommended )
TYPICAL PROGRAM AND METHODOLOGY FOR PRELIMINARY TESTING OF PROTOTYD SPECIMENS OF ELECTRIC UNITS AND POWER PLANTS WITH ICE AND GTE
1. GENERAL PROVISIONS
1.1 These standard programs and methods are used in the development of programs and methods for preliminary tests for specific prototypes of electrical units and power plants with piston and gas turbine drives.
1.2 The main tasks of preliminary tests are:
– verification of compliance of the electric unit or power plant with the approved technical specifications, sets of design documentation and the requirements of standards for electric units or power plants and their main components (engine, gearbox, generator, automatic control system, etc.);
– check of completeness;
– checking the operability of the electric unit or power plant and their systems;
– checking the indicators of transient processes, the quality of the generated electricity when operating at basic modes;
– determination of compliance with safety requirements, sanitary standards, environmental requirements.
1.3 The scope of tests includes the following works:
– load tests with the determination of thermal characteristics;
– carrying out special tests;
– long continuous load tests.
2 PREPARATION FOR TESTS
2.1 Prior to testing, the following documentation must be prepared:
– Terms of reference for the creation of an electrical unit or power plant;
– a set of design documentation;
– passports or forms for the main components;
– materials of bench and research tests, act of readiness of the test bench (certificate or certificate of attestation of the test bench and information-measuring equipment and valid metrological certificates (in accordance with GOST R 8.568);
– protocols of commissioning works on the electrical, heat engineering part, ACS and automated control system (hereinafter – ACS);
– approved program of preliminary tests, schedule of tests;
– working programs of special tests;
– draft operating manual;
– patent form;
– project TU;
– acts of the technical control department for the acceptance of an electric unit or power plant and their main parts;
– acts – permissions of fire, gas and energy supervision;
– order to conduct preliminary tests;
– acts on the readiness of the installation for inclusion;
– certificates for fuel and oil.
2.2 During the preparatory period, the commission for preliminary tests performs the following work:
– checks the completeness of the prototype and its compliance with the submitted documentation;
– checks the readiness of the electric unit (power plant) and bench or station equipment for testing;
– checks the completeness and sufficiency of measuring and control instruments, the safety of their use during testing;
– checks the electrical protection of generators against overload and external short circuits (hereinafter referred to as short circuit);
– gives permission to start testing;
– Approves the test schedule.
2.3 In the process of preparation for testing, a visual inspection of the electrical unit or power plant is carried out. At the same time, they check:
– no visible damage to individual parts, assemblies, equipment, instruments;
– quality of joints and connectors;
– no leakage of oil, coolant, fuel gas, air, including during pressure testing of the electric unit systems;
– the presence of seals on the mechanisms and units to be sealed.
3 DETERMINATION OF THE MAIN CHARACTERISTICS OF THE ELECTRICAL UNIT OR POWER PLANT
3.1 In the process of preliminary tests, automatic starts of the electric unit or power plant are carried out from cold and warm states.
3.2 When starting with an electric starter from batteries or a pneumatic starter from starting cylinders, the possible number of starts is determined without recharging the batteries or refueling the cylinders. The check is carried out after the electric unit or power plant is in cold and warm states.
3.3 For emergency generating sets and power plants, cold starts are provided after a long stop for at least eight hours at the lowest possible temperature of the coolant and oil, but not less than 8 °C for reciprocating engines or 5 °C for gas turbines. At the same time, the actual ambient temperatures and the time from the start command to the acceptance of 100% of the load are measured.
3.4 Check the operation of the excitation system of generators, protective devices and automatic control systems of electrical units (power plants).
3.5 The thermal performance is determined when operating at idle and according to the load characteristic at 25, 50, 75, 100% of the rated power, as well as at 110% of the rated power for reciprocating electrical units (power plants) and up to 120% of the rated power for gas turbines electrical units (power plants), but without exceeding the permissible temperatures of the gas flow behind the combustion chamber.
In the absence of a load stand and testing at the site of operation of the electrical unit (power plant), the load characteristic is determined in agreement with the customer and the operating organization.
3.6 The following tests are also carried out according to the special programs of the manufacturer:
– determination of the correct phase sequence;
– determination of the adjustable voltage range;
– testing circuits of own needs for functioning;
– checking the resistance of ground circuits;
– determination of the insulation resistance of the rotor and stator windings in cold and hot states;
– removal of characteristics of idling and short circuit of the generator;
– determination of the quality of generated electricity (deviations in frequency and voltage in steady-state operating modes, dynamics of transients);
– determination of the statism of the regulatory characteristic;
– determination of the value of the voltage unbalance factor at unbalanced load;
– test of protection against short circuits;
– testing of emergency protection and alarms;
– determination of launch reliability (10 successive launches from cold and warm states);
– tests for parallel operation;
– determination of the value of the distortion coefficient of the sinusoidal curve of the linear voltage;
– determination of the value of the temperature deviation of the voltage;
– determination of sound pressure levels and vibration levels;
– determination of the amount of harmful substances in exhaust gases;
– determination of mechanical efficiency;
– determination of irretrievable losses (specific costs) of oil.
3.7 In the case of using a pneumatic starter operating on natural gas, determine the consumption of starting gas for one start of the station.
3.8 Determination of heat release into the environment and measurement of the temperature of the surfaces of structures is carried out during operation at nominal mode.
3.9 Irreversible loss of oil in the lubrication system is determined every 10 hours of operation of the unit.
3.10 For electrical units and power plants with gas turbines, the operation of the anti-icing system of the axial compressor inlet tract is checked at an outdoor air temperature of + 5 to minus 7 °С in icing conditions. The operation of the system is evaluated by the increase in the temperature of the cycle air entering the gas turbine.
4 OPERATION UNDER LOAD
4.1 To check the operating parameters of electrical units and power plants, tests are carried out at rated power for 72 hours of continuous operation.
4.2 In the process of testing, the necessary measurements are carried out and the parameters of the ESN operation are recorded.
5 TEST METHODS AND MEASUREMENT ERRORS
5.1 When carrying out tests, measuring instruments are used that have passed metrological verification in accordance with GOST 8.513.
5.2 Measurement errors during testing should not exceed the values established in GOST 20440 .
5.3 Measurement of all electrical quantities, except for the insulation resistance, is carried out with electrical measuring instruments of an accuracy class of at least 0.5.
5.4 Methods for measuring power (mechanical and electrical), parameters of liquid and gaseous fuels, measuring temperature, pressure, flow, combustion efficiency, checking the operation of protective devices (against overfrequency, underpressure and temperature rise in the lubrication system, against temperature rise of bearings, protection from changes in fuel pressure, extinguishing the flame in the combustion chamber, increasing the temperature of the working fluid in the turbine), checking the speed control (degree of insensitivity, degree of static unevenness of the system, dynamic properties of the system), checking vibration, reliability of starts, determining the characteristics of the starting process, as well as methods for processing test results for gas turbines are carried out in accordance with GOST 20440, GOST 8.563.2, for piston engines – in accordance with GOST 26658, GOST R 50783, GOST 13822.
6.1 The parameters of the operating modes under load are recorded in the operational and daily list of parameters, followed by a computer printout or in the watch operating log every two hours.
6.2 The number and nature of starts and stops, information about oil top-ups, the results of oil analysis, as well as noticed problems are recorded in operational documentation.
6.3 Forms of operational documentation (logbooks) are developed using the rules and instructions for the technical operation of power plants with piston and gas turbine drives.
6.4 Upon completion of the preliminary tests, an act and protocols are drawn up containing the results of inspections by the commission of the electric unit or power plant and the indicators of their work in accordance with the test program.
( recommended )
TYPICAL PROGRAM AND METHODOLOGY
ACCEPTANCE TESTING OF PROTOTYPE SAMPLES OF ELECTRIC UNITS AND POWER PLANTS
1. GENERAL PROVISIONS
1.1 This standard program and methodology apply to prototypes of electrical units and power plants and are used during acceptance tests.
1.2 Tasks of acceptance tests:
– determination of the compliance of the design of the technical specifications, working documentation, specifications, state and industry standards;
– detection of operability and operational reliability;
– evaluation of the effectiveness of maintenance and repair;
– determination of ergonomic indicators, indicators of unification and standardization;
– assessment of technical aesthetics;
– determination of the technical level;
– determination of compliance with safety requirements and sanitary norms and rules.
1.3 The test program provides for modes that take into account not only the nominal, but also the limiting values of changes in external and internal parameters (within the limits provided for by the specifications) and the most unfavorable combinations of them that are possible during operation.
1.4 Tests are divided into the following stages:
– preparation for testing;
– assessment of starting qualities;
– determination of the main, including thermal engineering indicators and characteristics;
– testing of automatic regulation, control and protection systems;
– testing of auxiliary systems and devices;
– determination of the quality of generated electricity;
– verification of reliability indicators during continuous operation with rated load.
The total operating time of the electric unit or power plant by the beginning of the acceptance tests must be at least 100 hours, taking into account the results of preliminary tests.
The number of starts of the gas turbine power plant (hereinafter referred to as the GTPP) by the beginning of the acceptance tests must be at least 10, including from a cold state (at the initial temperature of the engine and gearbox oil equal to the air temperature in the compartment) – at least five times.
1.5 Certain types of acceptance tests can be carried out during preliminary tests with the participation of customer representatives. The list of special tests that can be carried out as part of acceptance tests is given in Appendix D.
2 PREPARATION FOR TESTS
2.1 For acceptance testing, a prototype of an electrical unit or power plant must be prepared in full compliance with the delivery specifications, including a set of tools, fixtures, spare parts and assembly units attached to the product.
2.2 The list of documentation to be submitted to the acceptance committee is given in Appendix E.
2.3 During the preparatory period, the acceptance committee carries out the following work:
– checks the completeness of the prototype and its compliance with the submitted documentation;
– analyzes the submitted documentation and evaluates the results of research and development and the results of preliminary tests;
– gives permission to start acceptance tests;
– approves the schedule of acceptance tests.
2.4 Prior to the start of the tests, all direct participants in the tests, including members of the acceptance committee, must be familiar with the safety rules.
3 EVALUATION OF STARTING PERFORMANCE
3.1 Starting characteristics are determined during start-up from a cold and warm reserve, during which the following parameters are fixed in time:
– the frequency of rotation of the rotor of the GTU or the crankshaft of the internal combustion engine;
– air pressure after the turbocharger;
– temperature of combustion products;
– pressure and consumption of fuel gas;
– consumption of starting gas (in case of using a starting turbo-expander);
– oil pressure and temperature;
– pressure and temperature of the coolant;
– ignition timing for gas internal combustion engines;
– the main points of starting: giving a start signal, starting the ignition system, turning the starter on and off, opening the fuel supply valves, turning off the starting pumps, entering the steady idle mode.
The level of vibration is checked at the characteristic points of the GTU and the temperature of the exhaust gases in the cylinders of the internal combustion engine.
3.2 To check the reliability of the start-up of the unit, five successful automatic starts should be performed in a row with reaching the rated power.
3.3 The reliability of starting from a cold reserve at the minimum oil and coolant temperature specified in the operating instructions should be checked using only standard heating elements (2 starts).
3.4 Check operation during normal shutdown from full load mode and run-out of GTU rotors (2 shutdowns).
4 DETERMINATION OF THE MAIN INDICATORS AND CHARACTERISTICS OF ELECTRIC UNITS AND POWER PLANTS
4.1 Tests at this stage are carried out in order to obtain experimental performance characteristics and verify their compliance with the specifications for delivery.
4.2 The main provisions of the testing methodology for electrical units and power plants with gas turbines must comply with GOST 20440, and internal combustion engines – with GOST 26658.
4.3 The load characteristic is determined when operating in the following modes: idling, 25, 50, 75, 100, 110% of the rated power – for the internal combustion engine; 120% – for gas turbines.
For each mode, determine:
– power at the generator terminals;
– oil temperature and pressure, coolant temperature and pressure (for internal combustion engines);
– fuel consumption;
– specific fuel consumption;
– effective efficiency;
– frequency of rotation of the rotor (crankshaft for internal combustion engines);
– the degree of pressure increase in the compressor;
– temperature in the gas-air path of the GTU (charge air and exhaust gases for internal combustion engines);
– hydraulic resistance on the suction and exhaust;
– friction power.
4.4 For gas turbines, based on the test results, heat engineering and gas-dynamic characteristics are built in a reduced (universal) form.
5 TESTING OF AUTOMATIC REGULATION, CONTROL AND PROTECTION SYSTEMS
5.1 Perform a check of the functioning of all protections and automation provided for in the specifications and the test program. In this case, previously performed tests can be set off if there are test protocols (acts).
The scope of testing by stage includes:
– checking the operation of the unit in the modes of automatic start and normal stop;
– checking the reliability of protective devices;
– checking the electrical protection of the generator against overload and external short circuits;
– checking the accuracy of maintaining adjustable parameters;
– determination of the static characteristics of the automatic control system;
– determination of the dynamic characteristics of regulation and control systems during discharges, load surges in accordance with specifications;
– checking the functioning of the automated control system of the power plant and the possibility of including the unit in the automated control system of the technological process (hereinafter – TP) of the upper level (in accordance with the “Basic provisions for automation of power supply facilities of OAO Gazprom”).
5.2 For generating sets or power plants with gas turbines, the following protections are checked:
– by exceeding the frequency of rotation of the rotor;
– by exceeding the maximum allowable gas temperature in the turbine;
– to reduce the pressure in the lubrication system;
– by pressure drop of fuel gas;
– on temperature rise of bearings;
– on exceeding the maximum permissible level of vibration of bearings, as well as other protection provided by the ACS.
5.3 For electrical units or power plants with reciprocating gas engines, the protection is checked according to the following indicators:
– high oil temperature;
– low oil pressure;
– low air pressure in the control system;
– high coolant temperature;
– low coolant pressure;
– high outlet temperature;
– limit deviation of temperature by cylinders;
– high charge air temperature;
– deviation of charge air pressure from the permissible level;
– main gas pressure deviation;
– pressure deviation of prechamber gas;
– the ratio of air and gas flow rates;
– limit value of rotation frequency;
– engine overload over 110% of power.
5.4 In the starting modes of operation of the generating set or power plant with gas turbine, the following protective devices are checked:
– protection for exceeding the speed of the turbo expander;
– Flame extinction protection (check is performed by stopping the fuel supply or simulating flame extinction).
5.5 With the machine inoperative, check the following protective devices:
– protection against axial shift of the rotor;
– protection for lowering the oil level in the oil tank.
5.6 Check the regulation of the following parameters:
– frequency of rotation of the rotor of the power turbine or crankshaft of the internal combustion engine;
– temperature of oil, coolant;
– generator voltage.
5.7 They check the functioning of the automated process control system of the power plant and the possibility of including it in the upper-level automated control system, check the compliance of the structure of the automated control system with the approved requirements for the composition of technical means, ease of control and its speed, noise immunity and other indicators listed in the ToR (TU). They check the presence of a communication interface with the highest level and the possibility of building an automated process control system for a multi-unit power plant based on the technical means used.
6 TESTING OF AUXILIARY SYSTEMS AND DEVICES
6.1 Check the operation of the automatic oil and coolant temperature control system (for an electric generating set or a power plant with an internal combustion engine) when the air flow changes (changing the position of the shutters, turning off the fans or changing their speed, etc.).
6.2 The parameters of the oil system and bearing temperatures are monitored in modes with the maximum allowable oil temperature.
6.3 In the process of long-term testing, the specific oil consumption is determined and the change in the properties of the oil in the power plant systems is checked.
6.4 Determine the consumption of electricity by a power plant or power plant for its own needs and its structure.
6.5 To determine the heat release, the temperatures of the outer surfaces of the elements of the electrical unit or power plant and the cladding are measured.
6.6 Determine the noise and vibration characteristics, check their compliance with the requirements of GOST 12.1.003 and GOST 12.1.012. The general and octave noise levels are measured at permanent workplaces of maintenance personnel and at a distance of 1 m from the external circuit of the electric unit or power plant when operating at nominal mode. The location of permanent workplaces for service personnel should be indicated in the technical documentation. The methodology for measuring sound pressure levels and processing the results must comply with the requirements of GOST 20440.
6.7 Determine the amount of harmful emissions into the atmosphere.
6.8 To study the operation of the anti-icing system at the gas turbine suction, conditions are artificially created for the occurrence of icing when the anti-icing system is on, while controlling the absence of icing. The effect of the anti-icing system on the thermal performance of the gas turbine is evaluated.
6.9 The efficiency of the integrated air-cleaning device (hereinafter referred to as CVOU) of a gas turbine plant is checked by artificial dusting in front of the CVOU to reproduce conditions with varying degrees of dust content in accordance with GOST 28775. For artificial dusting, particle fractions up to 50 μm (imitation of the normal state) and fractions up to 160 microns (imitation of a dust storm).
7 CHECKING THE QUALITY OF GENERATED ELECTRICITY AND THE STABILITY OF PARALLEL OPERATION
7.1 The test program should provide definitions for the following static indicators:
– steady-state voltage deviation in a steady-state thermal state when the symmetrical load changes in the range from 10 to 100% of the rated power;
– steady-state voltage deviation in a steady thermal state at a constant symmetrical load;
– steady-state frequency deviation at a constant symmetrical load;
– static characteristic of the frequency controller.
7.2 In the process of dynamic testing, the maximum allowable instantaneous load surge is determined, as well as the possibility of shedding 100% of the load with entering the stable idle mode and subsequent loading.
7.3 The quality of the generated electricity is checked according to all indicators for compliance with GOST 13109.
7.4 The input parameters are determined (according to standard ENG devices): voltage change (DU), frequency change (DF) in parallel operation with an external network or other sources of electricity, as well as the uniformity of power distribution between parallel operating units and the magnitude of exchange fluctuations.
The stability of the parallel operation of electrical units and power plants with a piston and gas turbine drive is checked in accordance with the indicators of GOST 23377.
8 CHECKING THE RELIABILITY OF THE ELECTRICAL UNIT OR POWER PLANT DURING CONTINUOUS OPERATION WITH RATED LOAD
8.1 The test program should provide for continuous operation for generating sets and power plants with gas turbines at rated load for 72 hours. If the rated load cannot be achieved due to external operating conditions, the generating set or power plant is tested at the maximum possible load.
8.2 After long-term testing, technical expertise establishes:
– technical condition of components and parts after testing;
– causes of failures, if any, quality and reliability of seals;
– the degree of preservation of the original adjustments, etc.
9.1 All work performed on the assembled electrical unit or power plant is recorded by the shift personnel in the watch operating log, which indicates the date of the work, its type and end time, as well as the names of the performers.
9.2 The parameters of the operating modes of the electrical unit or power plant in the process of long-term testing are recorded every two hours in the daily statement.
9.3 The number and nature of launches, as well as shutdowns and observed malfunctions are recorded in the watch operating log.
9.4 Forms of daily statements, operational logs and magazines are developed using the rules for the technical operation of electrical units or power plants with gas turbines and internal combustion engines.
9.5 The test results are documented in acts, technical certificates or test reports submitted by the test commissions.
9.6 In the forms of the GTPP, GTU, ICE and passports for the components of the power plant, entries are made in accordance with the rules for maintaining documentation.
( recommended )
TYPICAL PROGRAM AND METHODOLOGY OF OPERATIONAL TESTING OF PROTOTYM SPECIMENS OF ELECTRIC UNITS AND POWER PLANTS
1. GENERAL PROVISIONS
1.1 The standard program and methodology apply to prototypes of gas turbine and piston electrical units and power plants, and are used in the development of operational test programs.
1.2 The tasks of operational testing of prototypes of electrical units are:
– assessment of the compliance of the design with the requirements of the TOR, TS and technical documentation in terms of transportation, storage, ease of installation;
– checking the reliability of work in conditions of long-term operation;
– control of the stability of the main characteristics during the overhaul period;
– checking the effectiveness of the maintenance and repair system;
– obtaining data for normalization of fuel and energy costs in the operation of a particular type of electrical unit or power plant.
1.3 Tests are carried out at operating conditions determined by the technical needs of the facility where the power plant is installed.
1.4 The measurement and control system should be based primarily on standard instruments.
If necessary, install additional measuring devices.
2 CHECKING THE CONVENIENCE OF INSTALLATION AND INSTALLATION OF THE ELECTRIC UNIT
2.1 During the installation process, data is accumulated to determine the following indicators:
– modularity and completeness of the structure;
– the actual need for disassembly and revision of the blocks, the transportability of the blocks and the need for transport and assembly facilities;
– labor costs and cost of construction and installation works;
– duration of installation and commissioning.
2.2 The conclusion on the degree of compliance of the design with the requirements of block construction of power facilities is drawn up by the operating company (customer) with the involvement of the supervisory personnel of the manufacturer and specialized construction and installation companies, if they took part in the installation and commissioning.
3 OPERATIONAL RELIABILITY CHECK
3.1 To check the reliability of a generating set or power plant under long-term operation, organize the collection of operational information in accordance with existing instructions.
3.2 The processing and analysis of operational information at the intermediate stages of testing is carried out by a specialized organization of the customer according to the current methodology, and their results are drawn up in the form of intermediate reports.
At the final stage, a summary report is compiled on the analysis of the operational reliability of the electrical unit or power plant.
4 CHECKING THE STABILITY OF THE MAIN CHARACTERISTICS OF THE ELECTRICAL UNIT
4.1 The stability of the main characteristics of the electrical unit or power plant is checked during the performance tests, including at the beginning of the tests, after half the time until the first medium repair, before the middle repair, and also after the operating time of half of the next overhaul period.
4.2 Tests include the following steps:
– thermal testing of the unit;
– determination of vibration characteristics;
– checking oil and fuel consumption;
– temperature measurement;
– determination of the characteristics of auxiliary systems;
– checking the operation of the KVOU (for gas turbines);
– assessment of the resources of spark plugs and prechambers for gas internal combustion engines.
4.3 Inspect engine connectors and joints, air ducts, gas ducts, oil pipelines and gas communications for visual control of air, combustion products, gas, oil, coolant leaks.
Determination of power and efficiency, assessment of the technical condition is carried out according to the operating procedure agreed by the manufacturer and the customer.
4.4 Oil samples are taken from oil tanks, analyzed and compared with standards.
4.5 For gas turbines, the operation of the anti-icing system is checked. The system is put into operation, the level of air heating at the compressor inlet is measured and compared with the data in the operating instructions. After shutting down the system, check the tightness of the shut-off valves for supplying hot air (combustion products). Analyze data on the reliability of the system in winter conditions.
4.6 In the maximum power mode, the operability of the oil system and bearings is checked at the highest operating temperature of the cooled oil (permitted by the operating instructions). The highest temperature is set by adjusting the oil air cooler or bypassing part of the oil past it.
4.7 The vibration state is determined in accordance with the current instructions.
4.8 For gas turbines, the alignment of the rotors is checked and the possibility of its correction.
4.9 Measurements using standard instruments are carried out in the amount indicated in the daily statement of the operation of the electric unit or power plant every two hours.
4.10 Specific oil consumption is determined in accordance with the customer’s instructions for accounting for oil consumption.
4.11 For gas turbines, the performance of the KVOU is checked (functioning of valves, grids, fans, etc.).
4.12 Tests to verify the stability of the main characteristics of the electrical unit (power plant) and the preparation of a test report are carried out by operating organizations with the participation of the manufacturer.
5 CHECKING THE EFFICIENCY OF THE MAINTENANCE AND REPAIR SYSTEM
5.1 Carrying out scheduled and unscheduled maintenance operations during the overhaul period is recorded by the maintenance personnel in the forms and logs filled in in accordance with the rules for the technical operation of the generating set.
5.2 At the final stage of operational testing, maintenance is carried out in accordance with the manufacturer’s repair instructions. Repair maintenance is performed by a specialized repair organization of the customer under the technical guidance of the manufacturer in accordance with the current regulation on the procedure for handing over for repair and acceptance from repair of electrical units with gas turbine and piston engines, the manufacturer’s instructions and the rules for the technical operation of the electrical unit.
5.3 Based on the results of maintenance, repair and post-repair testing, a specialized repair organization, together with the manufacturer of the generating set, draws up a protocol in which the maintainability of the generating set or power plant is assessed:
– adaptability of the electric unit to the aggregate-nodal method of repair;
– compliance of the design of the generating set with the means of repair (required areas, lifting and transport mechanisms, composition of workshop equipment, etc.);
– required qualifications and number of personnel in the repair team;
– convenience of repair devices and equipment;
– compliance with the actual resources of units and details of technical documentation;
– labor costs and the cost of maintenance and repair.
6.1 At the end of the individual stages of testing, intermediate reports, protocols and test certificates are submitted to the commission.
6.2 Based on the results of operational tests, the commission draws up a final protocol and a test report.
( reference )
SAFETY PRECAUTIONS FOR TESTING
1. GENERAL PROVISIONS
1.1 When testing an electrical unit or power plant, it is necessary to be guided by the current “Safety Rules for the Operation of Consumer Electrical Installations” and “Safety Rules in the Gas Industry”.
1.2 The operation and maintenance of the electric unit or power plant is allowed to personnel who have passed the test of knowledge of the material part, the rules for operating the power plant, safety precautions and first aid to the victim.
1.3 When carrying out work at the station, the maintenance personnel must use serviceable and tested protective equipment (headsets, dielectric gloves, boots, rugs, tools with insulated handles, etc.).
1.4 Workplaces must have adequate lighting. If necessary, use portable lighting devices with a voltage of not more than 42 V.