Sample AVR Test Device Protocol. Checking automatic backup power on devices (AVR)

The automatic input system of the reserve (AVR) is designed to provide uninterrupted power supply and timely switching between the main and backup source of electricity at various failures. Therefore, the reliability of the AVR devices is made of particular importance. Especially when it comes to the power supply of objects, critical to the disconnection of electricity. For this reason, the regulatory documents stipulated a number of requirements, according to which the AVR test should be carried out and the definition of their performance and fault tolerance.

How to test devices AVR

To test the system of automatic input of the reserve requires a special disposal or outfit. It is forbidden to conduct tests in rooms with high humidity rates, in the presence of fire, explosion and flavors.

The inspection results are reflected in the AVR Standard Form Check Protocol with relevant regulatory and technical documentation.

At the first stage, measuring the insulation resistance of the power circuits is performed, for this purpose, a phase control relay is disconnected, as well as indicators. Only after this stage on the AURO device is given voltage to conduct inspections according to the protocol.

Optimally for testing to collect an additional design on the rail from several groups of single-phase switches, in any case, one of the circuits is supplied through the LATER.

What includes testing devices AVR

IN obligatory OSR devices, except for insulation resistance check, includes:

Check for the priority of inputs
Turning switching to backup power supply and reverse switching to the main power supply
The sequence of phase alternation and voltage parameter of the phase control relay
Checking the switching time between power sources
Checking the time delay when disconnecting the main input

In addition, all elements of relay equipment, switches and switching circuits are checked.

Verification and replacement of AVR in electrolaboratory professional

We are checking and replacing ABR with further warranty service.

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

The cost of checking and replacing ABR

Check and replace AVR from 9 800 rubles.

Have questions?

For advice on issues of interest, or executive application, contact us by phone.

"1 Purpose and scope. 1.1 This document Methodology No. 9 "AVR Performance Check" establishes a methodology for checking the AVR performance for compliance with the requirements of the regulatory ... "

1 Purpose and scope.

1.1 This document Methodology No. 9 "AVR Performance Check" establishes

the methodology for verifying the performance of ABR for compliance with the requirements of regulatory documentation.

1.2 This document is designed to use the Personnel of the Electrical Bar

OJSC Uzhemik when carrying out acceptance and periodic tests in electrical installations with a voltage up to 1000 V, owned by OJSC Uzmik. This document establishes the procedure and sequence of HVR performance.

1.3 Test Purpose - Reliability Reliability Schemes automatic inclusion Backup power (AVR) to the ability to automatically switch from one input to another when the voltage disappears on the work input.

1.4 Verification is made on the basis of PUE claims p.1.8.34 (4,5,6), Serez 50571.16-99 p. 612.9.

2.1 The rules of operation of electrical installations of consumers M.: Energoatomizdat, 1992.

2.2 Rules of electrical installation devices (PUE). Ed. 6 with changes and additions.

2.3 Rules of electrical installation devices (PUE). Ed.7. Section 6. Section 7, Ch. 7.1, ch. 7.2.

2.4 Inter-sectoral rules for labor protection (safety rules) during the operation of electrical installations. Pot R M-016-2001. RD 153-34.0-03.150-00.

2.5 GOST R 50571.1-93 "Electrical installations of buildings. Basic provisions. "

2.6 GOST R 50571.3-94 "Electrical installations of buildings. Part 4. Security Requirements. Protection against electric shock. "

2.7 GOST R 50571.16-99 "Electrical installations of buildings. Part 6. Tests. Acceptance tests".

2.8 GOST R 8.563-96. "Measurement Methods".

2.9 Handbook of electrical installations. Ed. A.S. Dorofuyuk M.: Energy, 3 Terms and Definitions.

In this technique, the terms and definitions adopted according to PUES are used. 6 and set standards GOST R 50571.

3.1 AVR - automatic switching on the reserve, the device is intended to restore the power of consumers, by automatically connecting backup power supplies instead of the main, damaged or erroneously disconnected.

3.2 Backup power supply - the power supply on which the voltage is preserved within the limits regulated by Pue for the afterwaric mode, when it disappears on another power supply source.

3.3 The main power source is a power source that is used to power the consumer in normal mode.

3.4 Consumer of electrical energy - enterprise, organization, institution and TP., Which electrical energy receivers are attached to electrical network and use electrical energy.

3.5 Switching machine - a device designed to turn on or off current in one or more electrical circuits.

3.6 Trigger voltage (return) - voltage on the coil of the switching machine at the time of closure (opening) of its contacts.

3.7 ABR response time - time measured from the moment of disconnecting the main power source until the backup is turned on.

3.8 Tok. short circuit - Superflow due to damage with negligible small full resistance Between points under different potentials in normal operating conditions.

4 Characteristics of the measured value, the normative values \u200b\u200bof the measured ve-larin.

The object of tests are ABR devices designed to ensure uninterrupted power consumer in accordance with the power supply category.

4.1 The AUR devices should be provided for to restore consumer power by automatically connecting the backup power source when the operating power supply is shutdown, leading to the disconnection of the consumer electrical installations. The AURO devices should also be provided for automatically inclusion of backup equipment when the working equipment is disconnected leading to a violation of the normal technological process.

The AVR devices are also encouraged to provide if they can simplify relay protection, reduction of the CW currents and the reduction of equipment by replacing the ring networks with radial-partitioned, etc. (PUE ed. 6 p. 3.3.30).

4.2 The AUR device, as a rule, should ensure that it is possible when the tension is disappeared on the tires of the feed element caused by any reason, including the CW on these tires. (PUE ed. 6 p 3.3.31).

4.3 The ABR device when the operating power supply switch is turned off, it should be turned on, as a rule, without additional time delay, the backup power supply switch. In this case, the device's action variance must be provided. (Pue ed. 6 p.3.3.32).

4.4 To ensure the action of the AVR, when the feed of the feed element is connected due to the disappearance of the voltage from the power side of the working source, as well as when the switch is disconnected from the receiving side (for example, for cases where the relay protection of the working element is only valid for shutdown of power switches) in the scheme The AUR should provide for the stress trigger. The specified trigger with the disappearance of the voltage on the feed element and if there is a stress from the backup source, it must act with a time delay to disable the operating power source switch from the receiving side. The AVR stress trigger should not be provided if the working and backup elements have one power source. (Pue ed. 6 p 3.3.33).

4.5 The minimum element of the AVR starting body voltage, which responses to the disappearance of the voltage of the working source, should be rebuilt from the self-step mode of the electric motors and from reducing the voltage at remote KZ. The voltage of the response control of the voltage control of the backup source of the AVR launcher must be selected as possible, based on the conditions of the self-wave of the electric motors. The time actions of the AVR starting body should be greater than the time of turning off the external KZ, in which the voltage decrease causes the element of the minimum trigger voltage element, and, as a rule, more than the response time from the power side. (PUE ed. 6 p 3.3.35).

4.6 When performing devices of AVR, check the conditions for overloading the backup power supply and self-wave of electric motors and, if there is an excessive overload or self-task is not provided, performing unloading under the AVR (for example, I will turn off

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5. Measurement conditions.

When performing measurements, the following conditions must be followed:

5.1 The AUR scheme should be completely mounted and equipped with all the elements according to the project.

5.2 Tests are carried out in a dry heated room, or on the Stand ETL, with natural or artificial lighting.

5.3 The ambient temperature should be from 15 ° C to 40 ° C, the relative humidity of the air to 80% (at a temperature of 25 ° C);

5.4 The operating position of the instruments is horizontal. In winter, instruments need to be transported in a special container and to measure the exposure time under measurement conditions.

6 Measurement method.

6.1 Checking the operation of circuit breakers and contactors under reduced and rated voltages Operational current is carried out by multiple inclusions and disconnects when the voltage is submitted from an extraneous power supply. In this case, the circuit breakers and contactors must work.

6.2 Checking relay equipment is performed in accordance with the current instructions by direct measurement. The restriction limits of the relay on the workstores must comply with the calculated data. The voltage to the elements of the relay equipment is served from an extraneous power supply.

6.3 Checking the correct functioning of fully assembled schemes is carried out visually. All scheme elements should be securely function in the sequence provided by the project.

7 Requirements for measuring instrument, auxiliary devices.

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8 Requirements for measurement errors and ascribed measurement error characteristics.

8.1 Measurement error is determined by the class of appliances used.

9 Preparation for measurements.

9.1 Check the compliance of the AVR project mounted scheme.

9.2 Disable the wires from the relay coils and from the chart contactors.

9.3 Collect the test diagram to check the voltage of the trigger (return) of contactors and relay coils according to Figure 1 of Annex 1.

10 Sequence and procedure for measuring.

When performing measurements, the following operations perform:

10.1Sext of contactor response voltage, triggering voltage and return voltage control relay. The check is made in accordance with section 5 "Handbook on the setup of electrical installations" (ed. A.S.Dorofuyuk) depending on the type of relay.

10.2Sext the operation of circuit breakers and contactors under reduced and rated operational voltages with multiple inclusions. (See Table 1).

After supplying the supply voltage and reduce it to 0.8 Us, according to table 1, the clarity of the triggering, the sequence of operation of individual contacts, relays and other elements and the whole scheme as a whole in all modes of operation are checked. The operation of the AVR devices schemes is checked by imitation of emergency and non-normal modes of operation of power equipment. When switching on electromagnetic devices alternating current The vibration of the magnetic pipeline may occur, which is expressed in a strong buzz and additional heating of the chosen core. It is necessary to check the presence of an intact short-circuited turn and the density of the adjustment of the anchor to the core of the magnetic pipeline. The latter is achieved by providing some freedom of anchor with respect to the fixed part of the device.

10.3 When the SF circuit breaker is turned on, measure the AVR response time when the voltage disappears on one of the inputs. Adjust the exposure time of the ABR response in accordance with the project.

10.4 Disassemble the test scheme. Connect to the location of the wires to the coils of the relay and contactors.

10.5 Check the correctness of the functioning of fully assembled circuits at different values \u200b\u200bof the operational current. In this case, the sequence of operation of the schema elements and the logic compliance provided concept scheme Project (see Table 2).

10.6 Submit voltage ~ 380 V in both inputs.

10.7 Check the phasing of the inputs. During the mismatch - to switch the ends of the feed cables when the voltage is removed. The coincidence of voltage phases is checked on the pole of the disconnected switching apparatus using a voltmeter. When the voltage phases coincide, the voltmeter will show 0 V. With no coincidence of the voltage phases, the voltmeter will show linear network voltage. The phasing diagram is shown in Fig.2 of Annex1.

10.8 When checking the voltage circuit, there are cases of refusal to work individual elements and circuit nodes. Although damage and disorders in the schemes are extremely diverse, they can be attributed to the following primary types:

a) circuit breaking;

b) short circuit;

c) ground closure;

d) the presence of a bypass chain;

e) Non-compliance with the requirements of the parameter circuit or a malfunction of individual devices included in the circuit.

All these defects are found far from immediately and can have a variety of external manifestations depending on the characteristics of the scheme. Only a thorough analysis of the scheme, thoughtful verification and testing make it possible to quickly and effectively identify and eliminate the malfunction.

11 Processing and calculating measurement results.

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12 Monitoring the accuracy of measurement results.

12.1 Control of the accuracy of measurement results is ensured by the annual verification of devices in the state standard of the Russian Federation. The devices must have existing certificates of the melief. Measurement measurements with an overdue calibration period is not allowed.

13 Registration of measurement results.

13.1 Verification results are reflected in the protocol of the corresponding form (the protocol form is attached in Appendix 2).

13.2 When filling out the protocol in the column "withdrawn for compliance with the requirements" opposite each item to enter: "corresponds" or "does not correspond."

13.3 The list of selected deficiencies should be made to the Customer for making measures to eliminate them.

13.4 The protocol shall enter the values \u200b\u200bcalculated with the measurement error in accordance with section 11 of this technique.

13.5 Test and measurement protocol is issued as electronic document and stored in the appropriate database. The second instance of the protocol is printed and stored in the ETL archive.

13.6 Copies of test and measurement protocols are subject to storage in the electrolyab archive for at least 6 years.

14 Requirements for staff qualifications.

To perform measurements and tests allow persons who have passed special training and certification with the assignment of an electrical safety group not lower than sh when working in electrical installations up to 1000 V, which have an entry on admission to tests and measurements in electrical installations up to 1000 V.

Insulation resistance measurements should only be carried out by qualified personnel as part of a brigade, in an amount of at least 2 people. The manufacturer of the work must have 5 discharge, members of the brigade - not lower than 4 categories.

15 Safety requirements when performing measurements and environmental safety.

15.1 When checking the performance of the AVR, it is necessary to be guided by the requirements of "Intersectoral Rules for Labor Protection (Safety Rules) during the operation of consumer electrical installations."

15.2 Tests are allowed to be carried out by trained workers from the number of electrical personnel by order. Measurements performs a brigade of two specialists with a qualifying group for electrical safety not lower than III.

15.3 Connecting wires should be attached only after removing the voltage from the AUR circuit. Unacceptable instrument switching, instrument measurement ranges and disassembly of the test diagram without disconnecting the supply voltage.

15.4 The method of testing the performance of ABR hazards for the environment does not represent.

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Protocol Quring AVR Professable

1. Date of receipt of the application for testing (contract number) _______________________________

2. Full item. electrical installations its elemental composition ______________________________

3. Name and address of the assembly organization ______________________________________

4. Information about the project documentation, in accordance with which the electrical installation is mounted _____________________________________________________________________________

5. Information on acts of hidden work _________________________________________________

(organization, number, date)

6. Information on the additional test report performed on the subcontract (if available) ______________________________________________________________

7. OKP code _______________________________________________________________________

8. Place of testing and measurements ___________________________________________

9. Purpose of tests and measurements _____________________________________________________

(Reception and delivery, periodic, operational, definition, bench)

10. Climatic conditions for testing:

Temperature__________________________________________________

Humidity ___________________________________________________

Pressure ____________________________________________________

11. Mounted AVR circuit 0.4 kV corresponds to drawing № __________________________

12. The AVR scheme provides for the power supply on one of the two supply lines from ____________________________________________:

Including the working input is carried out by the circuit breaker in the voltage control circuits on the operating input;

When the voltage disappears on the working input, the operating input contactor is disabled and the backup input contactor is turned on;

When the voltage is restored to the operating input, the backup input is turned off, the backup input contactor is turned on.

13. Verification of AVR performance is carried out in accordance with the methodology No. 9 "AVR inspection"

13. Test results are shown in pages number 2 and 3 of this Protocol.

14. The list of applicable test equipment (IO) and measurement tools (C) is given on page No. 3 of this Protocol. The variable part of the professional cycle. According to GEF in variate ... "

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Head of state authorities Subjects Ministry Russian Federation In the health sector, write to us, we remove it within 1-2 business days.

Sample AVR system performance testing protocol:

Partial or complete reprint and reproduction only with a testing laboratory resolution.

Corrections are not allowed.

The protocol applies only to electrical installation elements subjected to tests.

Definition of AVR:

AUR - automatic power on the backup power.

AVR performance check:

Automatic input reserve

One of the ways to increase the reliability of the power supply by providing consumers with backup power supply.

As follows from the name, the method is automatic connection To consumers of a backup source, in the event of basic nutrition defects.

The method is implemented by the AUR device, with no less than two independent power sources connected to it, one of which is the main one.

Purpose

The AUR provides an attachment to the consumer of the backup power supply in the disappearance of the main power source voltage, or other fixed nutrition defects, such as a significant decrease or increase in voltage, closure between phase tires without loss of voltage, change phasing, regardless of the causes of the defect.

Also, the ABR provides the function of automatic return to the main power when it restores it (in some cases, ABR is used without automatic return).

In addition, ABR can provide control of the state of the backup power supply to the absence of defects, as well as control of consumers, for example, the absence of short circuits in their chains.

Device

Monitoring the state of the main and backup power and control is carried out by means of the so-called voltage control relay, phase control relays, ABR controllers, or multifunction relays or controllers.
Contactors and automatic switches or switches with automatic or semi-automatic drives are applied as executive bodies.
In addition, AVR may contain manual control and visual control.

Test Purpose

The AVR tests are carried out in order to determine the performance of AVR in accordance with the requirements of regulatory documents.

Testing

Basic tests during testing:

performance testing;
verification voltage of the triggering;
checking the Time tolerance of the main input;
checking the switching time from the main nutrition to the backup.

A number of other parameters are also controlled.

Result

The scan results are issued by the standard sample protocol (see above the AVR system performance check protocol).

Labtestenergo offers its services to test the AVR performance. We use a mobile laboratory, thanks to which we can go to any object in Moscow and the Moscow region, and conduct tests in the field.

Service	unit of measurement	Cost per unit of measurement, rub.
Check automatic reserve entry (AVR)	device	from 11000.

Why carry out tests

ABR devices are responsible for the timely power on the backup power. If there are problems with power supply, it automatically connects to the backup line. This avoids the sharp shutdown of equipment, which can lead to failures, damage and loss of not saved data. When power supply is stabilized on the main line, the ABR device is automatically connected back to it.

Tests need to be carried out in order to make sure the correctness of the parameters of the device, the degree of its wear and suitability of operation. The frequency of AVR verification is described in the regulatory documentation.

According to the law, the tests can be performed only by the licensed company. Labtestenergo is registered in Rostechnadzor and provides services fully officially. We conclude contracts with customers and make out the reporting documentation for all the rules.

What include tests

The technique of testing devices AVR presupposes the following operations:

visual inspection of equipment;
stress measurements at which it turns off from the main line;
definitions for which the AURO device is disconnected from the main input and connects to the backup;
check the operation of relays and contactors at different currents.

During the visual inspection, the laboratory employee checks the extent of the body of the hull, its integrity, the correctness of the wires. The presence of microcracks, damage, contaminants is checked.

Technical parameters are measured using high-precision laboratory equipment and are checked with standards. Based on this comparison, the output is made, can the devices be used further.

After all the tests, the AVR verification protocol is drawn up and the technical report in which information on the work carried out and the recommendations for troubleshooting are made.

The advantages of cooperation with us

Our company employs electrics with work experience not less than 5 years. We equip the laboratory with modern equipment, which takes timely verification. Orders are performed quickly and efficiently. If you have any questions - call the numbers listed on the site, write to the mail or order a callback.

"C O G L A S O V A N O" "U T V E R L rails

Deputy. Chief of FSU Chief Engineer

"UGEN in RB"

_______________ ______________

"_______" _______________ 2003 "______" _______________ 2003

M E T O D and K A number 9

AVR performance check

Chief Power Engineer

_______________

Head of Electricity №17

________________

1 Purpose and scope.

1.1 This document Methodology No. 9 "Wiring ABR's performance" establishes the AVR performance testing methodology for compliance with the requirements of regulatory documentation.

1.2 This document is designed to use the electrolyab personnel when conducting acceptance and periodic tests in electrical installations with voltage up to 1000 V, belonging. This document establishes the procedure and sequence of HVR performance.

1.3 The purpose of the test is to evaluate the reliability of the automatic backup power on the ability to automatically switch from one input to another when the voltage is disappeared on the work input.

1.4 Verification is made on the basis of PUE claims p.1.8.34 (4,5,6), Serez 50571.16-99 p. 612.9.

2.1 The rules of operation of electrical installations of consumers M.: Energoatomizdat, 1992.

2.2 Rules of electrical installation devices (PUE). Ed. 6 with changes and additions.

2.3 Rules of electrical installation devices (PUE). Ed.7. Section 6. Section 7, Ch. 7.1, ch. 7.2.

2.4 Inter-sectoral rules for labor protection (safety rules) during the operation of electrical installations. Pot r M. RD 153-34.0-03.150-00.

2.5 GOST R 50571.1-93 "Electrical installations of buildings. Basic provisions. "

2.6 GOST R 50571.3-94 "Electrical installations of buildings. Part 4. Security Requirements. Protection against electric shock. "

2.7 GOST R 50571.16-99 "Electrical installations of buildings. Part 6. Tests. Acceptance tests".

2.8 GOST R 8.563-96. "Measurement Methods".

2.9 Handbook of electrical installations. Ed. M.: Energy, 1977

3 Terms and Definitions.

In this technique, the terms and definitions adopted according to PUES are used. 6 and set standards GOST R 50571.

3.2 Backup power supply - the power supply on which the voltage is preserved within the limits regulated by Pue for the afterwaric mode, when it disappears on another power supply source.

3.3 The main power source is a power source that is used to power the consumer in normal mode.

3.4 Consumer of electrical energy is an enterprise, organization, institution and TP., In which electrical energy receivers are attached to the electrical network and use electrical energy.

3.5 Switching machine - a device designed to turn on or off current in one or more electrical circuits.

3.6 Trigger voltage (return) - voltage on the coil of the switching machine at the time of closure (opening) of its contacts.

3.7 ABR response time - time measured from the moment of disconnecting the main power source until the backup is turned on.

3.8 short circuit current - ultrapure due to damage with negligible small impedance between points under different potentials under normal operating conditions.

4 Characteristics of the measured value, the normative values \u200b\u200bof the measured value.

The object of tests are ABR devices designed to ensure uninterrupted power consumer in accordance with the power supply category.

4.6 When performing devices of AVR, you should check the overloading conditions for the backup power supply and self-wave of electric motors and, if there is an excessive overload or does not provide self-printing, perform unloading under the AVR action (for example, disconnection is invisible, and in some cases, parts of the responsible electric motors are recommended; Application of APV). (PUE ed. 6 p 3.3.38).

4.7 in accordance with the requirements of PUE ed. 6 p.1.8.34.4 The operation of circuit breakers and contactors under reduced and rated operational voltages by multiple inclusions are shown in Table 1.

Operation	Operational voltage,% of nominal	Number of operations
Turning on
Enabling and shutdown
Disconnection

4.8 The correct functioning of the fully assembled circuits at different values \u200b\u200bof the operational current is shown in Table 1.8.41 Pue (see Table 2).

Table 2.

Test object	Operational voltage,% nominal	Note
Relay contactor schemes in settings by voltage up to 1 kV		For simple schemes Button - Magnetic Starter Checking the reduced voltage is not made
Contactless schemes on logical elements		Voltage change is performed at the input to the power supply

5. Measurement conditions.

When performing measurements, the following conditions must be followed:

5.1 The AUR scheme should be completely mounted and equipped with all the elements according to the project.

5.2 Tests are carried out in a dry heated room, or on the Stand ETL, with natural or artificial lighting.

5.3 The ambient temperature should be from 15 ° C to 40 ° C, the relative humidity of the air to 80% (at a temperature of 25 ° C);

5.4 The operating position of the instruments is horizontal. In winter, instruments need to be transported in a special container and to measure the exposure time under measurement conditions.

6 Measuring method.

6.1 Checking the operation of circuit breakers and contactors under reduced and rated operational current voltages is carried out by multiple inclusions and disconnects when the voltage is supplied from an extraneous power supply. In this case, the circuit breakers and contactors must work.

6.3 Checking the correct functioning of fully assembled schemes is carried out visually. All scheme elements should be securely function in the sequence provided by the project.

7 Requirements for measuring instruments, auxiliary devices.

When performing measurements, measurements and other means technical meansshown in Table 1.

Table 1. Devices, protective equipment.

Sequer Number and Name Measurement Means (C), Test Equipment (IU), Auxiliary Devices	Standard designation, TU and type SI, IO	Factory number	Metrological characteristics (cl. Accuracy, limits of errors, measurement limits)	Names of the measured value
1. Voltmeter	E533		Multi-reported Accuracy class 0.5	Voltage
2. Stopwatch	SCPR	№ 000	Accuracy class 2
3. Circuit breaker			For rated current 10 a
4. Autotransformer
5. Connecting wires	Copper cross section 2,5mm2

8 Measurement error requirements and ascribed measurement error characteristics.

8.1 Measurement error is determined by the class of appliances used.

9 Preparation for measurement.

9.1 Check the compliance of the AVR project mounted scheme.

9.2 Disable the wires from the relay coils and from the chart contactors.

9.3 Collect the test diagram to check the voltage of the trigger (return) of contactors and relay coils according to Figure 1 of Annex 1.

10 Sequence and procedure for measuring.

When performing measurements, the following operations perform:

10.2Sext the operation of circuit breakers and contactors under reduced and rated operational voltages with multiple inclusions. (See Table 1).

After supplying the supply voltage and reduce it to 0.8 Us, according to table 1, the clarity of the triggering, the sequence of operation of individual contacts, relays and other elements and the whole scheme as a whole in all modes of operation are checked. The operation of the AVR devices schemes is checked by imitation of emergency and non-normal modes of operation of power equipment. When the AC electromagnetic devices are turned on, the magnetic pipeline vibration may occur, which is expressed in a strong buzzion and additional heating of the elevated core. It is necessary to check the presence of an intact short-circuited turn and the density of the adjustment of the anchor to the core of the magnetic pipeline. The latter is achieved by providing some freedom of anchor with respect to the fixed part of the device.

10.4 Disassemble the test scheme. Connect to the location of the wires to the coils of the relay and contactors.

10.5 Check the correctness of the functioning of fully assembled circuits at different values \u200b\u200bof the operational current. At the same time, the sequence of operation of the schema elements and compliance with the logic provided by the project schema (see Table 2).

10.6 Submit voltage ~ 380 V in both inputs.

a) circuit breaking;

b) short circuit;

c) ground closure;

d) the presence of a bypass chain;

e) Non-compliance with the requirements of the parameter circuit or a malfunction of individual devices included in the circuit.

11 Processing and calculating measurement results.

The values \u200b\u200bof the values \u200b\u200bof the operation of electrical apparatuses are determined after their final adjustment, as the arithmetic average of the results of three dimensions by the formula:

UI - the voltage of the operation of electrical apparatuses, in

The response time of the AVR, taking into account the error, is determined by the formula:

where

TI - the testimony of the stopwatch;

FI - the class of accuracy of the stopwatch.

12 Monitoring the accuracy of measurement results.

13 Registration of measurement results.

13.1 Verification results are reflected in the protocol of the corresponding form (the protocol form is attached in Appendix 2).

13.2 When filling out the protocol in the column "withdrawn for compliance with the requirements" opposite each item to enter: "corresponds" or "does not correspond."

13.3 The list of selected deficiencies should be made to the Customer for making measures to eliminate them.

13.4 The protocol shall enter the values \u200b\u200bcalculated with the measurement error in accordance with section 11 of this technique.

13.5 The test and measurement protocol is drawn up in the form of an electronic document and is stored in the appropriate database. The second instance of the protocol is printed and stored in the ETL archive.

13.6 Copies of test and measurement protocols are subject to storage in the electrolyab archive for at least 6 years.

14 Requirements for personnel qualifications.

15 Safety requirements when performing measurements and environmental safety.

15.3 Connecting wires should be attached only after removal of voltage from the AUR scheme. Unacceptable instrument switching, instrument measurement ranges and disassembly of the test diagram without disconnecting the supply voltage.

15.4 The method of testing the performance of ABR hazards for the environment does not represent.

Developed

head ETL

Appendion2.

Invalid partial or complete reprint or reproduction without solving an electrolaboratory

Test protocol applies only to electrical installation

Electrical Laboratory Customer ________________________

(F. I. Owner, address)

450006 Ufa ________________________________

I argue:

Head ETL ___________________

"______" ___________________ 200__.

Protocol No.

AVR performance checks

1. Date of receipt of the application for testing (contract number) _______________________________

2. Full item. electrical installations its elemental composition ______________________________

3. Name and address of the assembly organization ______________________________________

ka _________________________________________________________________________

5. Information on acts of hidden work _________________________________________________

(organization, number, date)

6. Information on the Additional Test Protocol on the Subcontract

(if available) __________________________________________________________