1、 IEEE Std 90003-2008 IEEE Std 90003-2008 IEEE Guide for Static VarCompensator Field Tests Sponsored by the Substations Committee IEEE 3 Park Avenue New York, NY 10016-5997 USA 26 August 2011 IEEE Power +1 978 750 8400. Permission to photocopy portions of any individual standard for educational class
2、room use can also be obtained through the Copyright Clearance Center. Introduction This introduction is not part of IEEE Std 1303-2011, IEEE Guide for Static Var Compensator Field Tests. This guide was prepared by a Task Force of Working Group I4, Static Var Compensators, of the Power Electronic Sta
3、tions Subcommittee of the Substations Committee of the IEEE Power deciding how, when, and where the system and its components will be tested; and determining the test equipment that is needed. thyristor-controlled reactor: A series connection thyristor controller, typically connected between two hal
4、ves of a reactor, that forms one leg of the connected circuit. The thyristor controller consists of antiparallel phase angle controlled thyristors for vernier control of the reactor susceptance (current). thyristor-switched capacitor: A series connection of a thyristor switch, typically connected be
5、tween a capacitor bank and a current limiting reactor, that forms one leg of the connected circuit. The thyristor switch consists of antiparallel thyristors that are blocked or fired for full conduction (on/off control). thyristor-switched reactor: A series connection of a thyristor switch, typicall
6、y connected between two halves of a reactor, that forms one leg of the connected circuit. The thyristor switch consists of antiparallel thyristors that are blocked or fired for full conduction (on/off control). transient network analyzer: An analog or digital test circuit representing a scaled-down
7、version of the pertinent power circuit components, used mainly for control response and performance testing. transient fault recorder: A device, similar to a digital fault recorder or digital transient recorder, for recording transient quantities. trial operation: A period during which the equipment
8、 or system is placed under service conditions and is also monitored for stable, smooth, and reliable performance. trigger pulse converter: A device in the control system that converts the control signal to a signal that can be transmitted to the thyristor valve. valve base electronics: Electronic ci
9、rcuitry that directs gate pulses into the thyristor valve. valve electronics: Electronic circuitry associated with the thyristors and mounted at thyristor level potential. 3.2 Acronyms DFR digital fault recorder DTR digital transient recorder ITP inspection and test plan MSC mechanically switched ca
10、pacitor RTDS real time digital simulator SER sequence of events recorder TCR thyristor-controlled reactor TFR transient fault recorder TNA transient network analyzer TPC trigger pulse converter TSC thyristor-switched capacitor TSR thyristor-switched reactor VBE valve base electronics VE valve electr
11、onics 4 Copyright 2011 IEEE. All rights reserved. IEEE Std 1303-2011 IEEE Guide for Static Var Compensator Field Tests 4. Preparation of a field test program The purpose of this clause is to describe how a comprehensive field test program can be applied to SVC systems. In general, every SVC has been
12、 designed and installed for a specific reason and purpose. This reasoning and purpose should be clearly defined for the test program and understood by the participants. A specific set of inspection and test plans (ITPs) should be prepared for each SVC project. In the field, these ITPs will demonstra
13、te that the specific purposes of that SVC are being met in accordance with the performance specifications. 4.1 Test program phases A comprehensive field test program includes the following major phases: a) Overall test planning and organization, including the definition and line of authority for per
14、forming the tests. b) Survey of documents and data, including contract, system study, factory test review, drawings, users manual availability, and definition of ac system requirements or limitations. c) Preparation of ITPs for equipment, subsystem, commissioning, and acceptance tests of the SVC sys
15、tem. d) Review and approval of, or concurrence with, test program by user. e) Preparation of schedule, including coordination of installation/test schedule and coordination with system operation. f) Dissemination and approval of field test results. g) Dissemination of information, including as-built
16、 drawings. Only phase c), the preparation of ITPs for SVC pre-commissioning, commissioning, and acceptance tests, is discussed in this guide. 4.2 Inspection and test plans (ITPs) It is suggested that a format be adopted that breaks down the overall test program into a series of single purpose ITPs.
17、5 Copyright 2011 IEEE. All rights reserved. IEEE Std 1303-2011 IEEE Guide for Static Var Compensator Field Tests 4.2.1 Contents of the ITP The ITP should contain at least the following information: a) Descriptive title and test number. The title should convey the purpose of the test, equipment, and
18、subsystem or system being tested. b) Person (by title) responsible for directing the test and the person with whom the performance of the test is to be coordinated. c) List of preceding tests that should have been completed before this test can be attempted. d) Estimate of time required to complete
19、the test. e) System configuration prior to the test. This could be in the form of a single-line diagram at the beginning of the test, a table of switch or breaker positions, or other format that describes the pretest configuration. f) Step-by-step description of the test execution, along with the ex
20、pected results of each step including reactive power swings. g) Description of the expected final results. h) Summary of the records required to document successful completion of the test. i) Identification and description of relevant reference information, such as industry standards, particular req
21、uirements from the specifications, or potential impact on the utility. j) Test equipment used, including type, serial number, calibration, etc. k) Test sheets with measured data (suitable for future fault diagnosis). A sample ITP is provided in Figure 1. This ITP is for example purposes only, and sh
22、ould be modified to fit the circumstances of the specific project and organization. 6 Copyright 2011 IEEE. All rights reserved. IEEE Std 1303-2011 IEEE Guide for Static Var Compensator Field Tests Figure 1 Sample inspection and test plan 7 Copyright 2011 IEEE. All rights reserved. IEEE Std 1303-2011
23、 IEEE Guide for Static Var Compensator Field Tests 4.2.2 Field test categories covered by the ITP The field testing of an SVC project should consist of a series of tests documented by individual ITPs, beginning with inspection, installation checks, and mechanical tests of the equipment and progressi
24、ng through electrical and functional test of equipment, subsystems, and the complete SVC system in accordance with approved drawings, instructions, and users manual. In general, ITPs should be created to cover the following field test categories: a) Equipment tests b) Sub-system tests c) Commissioni
25、ng tests d) Acceptance tests The details of the tests in each category are given in Clause 5 below. 5. Implementation of a field test program Field testing is divided into the following groups: a) Equipment tests relating to individual items b) Subsystem tests, where groups of items are operated tog
26、ether to provide a test c) Commissioning tests d) Acceptance tests All tests of the program should be performed in sequence, progressing to a higher level of tests only after the lower level tests have been completed successfully. The tests described in 5.1 and 5.2 are known also as pre-commissionin
27、g tests, comprising all possible tests without main circuit energization, but with ac or dc control power available for use if required. 5.1 Equipment tests This subclause covers pre-commissioning tests for equipment items. The results of these tests should be reviewed and compared with manufacturer
28、s data, specifications, and previous test results where relevant. It is assumed that for each item of equipment, a manufacturers checklist of inspection is available and has been completed satisfactorily after installation and prior to the start of these equipment tests. This checklist should includ
29、e, for example, the following: a) Inspection of equipment upon arrival to site b) Installation checks (including, but not limited to, proving that all fastenings are tight, connections are correct to the power circuit diagram, ground connections are correct, and insulators are clean and undamaged) c
30、) Mechanical tests and adjustments 8 Copyright 2011 IEEE. All rights reserved. IEEE Std 1303-2011 IEEE Guide for Static Var Compensator Field Tests 5.1.1 General Contract specifications or existing standards apply to field tests of the following equipment: transformers, disconnecting and grounding s
31、witches, circuit breakers, instrument transformers, arresters, capacitors, reactors, resistors, auxiliary supplies, wall bushings, insulators, busbar, protection relays and instruments, cables (power and control), and HVAC (heating, ventilating, and air conditioning) equipment. The fire protection a
32、nd detection system should be verified to be in an operational state. Specific recommendations for these items of equipment are not provided. The following clauses contain minimum recommendations for tests on equipment items peculiar to an SVC. 5.1.2 Thyristor valve 5.1.2.1 Installation checks a) Ch
33、eck that the valve modules and interconnections are installed correctly to the layout drawings. 5.1.2.2 Power supply to valve electronics a) Check the power supply (voltage and current) at the valve electronic units. b) Check the corresponding output. c) Check the alarm signals on loss of power. 5.1
34、.2.3 Fiber optic a) Measure the attenuation of each fiber from valve base electronics (VBE) to gate unit, and reverse, where applicable, and output light levels. b) Check the correct connection per drawings. 5.1.2.4 Coolant circuit a) Check the coolant circuit connections against drawings. b) Verify
35、 the leak detection and alarm signals. 5.1.2.5 Contact resistance a) Confirm spring compression securing thyristors to assure contact resistances between thyristor and heat sink. b) Measure resistance between each interconnecting busbar on the valve, or confirm bolt torque values of busbar connectio
36、ns. 5.1.2.6 Grading network impedance a) Measure each total thyristor level resistance (R) and capacitance (C), or check for continuity of the RC damping and grading circuits. 9 Copyright 2011 IEEE. All rights reserved. IEEE Std 1303-2011 IEEE Guide for Static Var Compensator Field Tests 5.1.2.7 Aux
37、iliary connections a) Check all auxiliary connections on the valve for tightness. 5.1.3 Valve cooling equipment (skid or package) 5.1.3.1 Installation verification Valve cooling systems are normally premounted, functionally tested in the factory, and interconnected at the site. The completeness and
38、correctness of the overall system installation at the site should be verified visually with the aid of checklists, diagrams, drawings, and instructions. The checking process should include the immediate environment of the cooling system (such as mounting bolts, pipework supports), clearances (to all
39、ow for vibration, thermal expansion, exhaust air, etc.), openings, automatic shutters, walking and maintenance space, warning and instruction signs, lighting, leak-water collection, floors, and others. The completeness and quality of the cooling medium and supplies in each coolant circuit (such as w
40、ater, filters, deionizing resin, and chemicals), as well as replacement and spare quantities, should be verified. The tests described below require all the auxiliary supplies to be connected. A temporary pipe loop should be fitted to bypass the thyristor valves, if not already part of the installati
41、on, in order to prevent solid matter from entering the valve coolant circuits during the flushing process. For water cooling systems, instructions regarding the water quality (pH number, conductivity, etc.) of the first fill should be followed. This process should include running the flushing operat
42、ion in bypass (i.e., without thyristor valves) over several hours, including all branches, heat exchangers, deionizers, etc.; turning pumps on and off repeatedly; and operating valves repeatedly, until no more particles accumulate in the filters. 5.1.3.2 Cooling power supplies a) Record the power su
43、pply input voltage of each supply. b) Observe the alarm signal on loss of input voltage. 5.1.3.3 Cooling auxiliary equipment a) Verify action and position of all automatically operated valves, louvers, doors, etc. b) Verify backup, standby, and spare equipment. 5.1.3.4 Pumps and fans a) Verify rotat
44、ion direction. b) Verify start-up. c) Verify start-up of backup pump on loss of supply to running pump. d) Record starting and running motor current. e) Verify overload trip time of all motors by artificial single-phasing of all three-phase motors. f) Check noise and vibration. 10 Copyright 2011 IEE
45、E. All rights reserved. IEEE Std 1303-2011 IEEE Guide for Static Var Compensator Field Tests 5.1.3.5 Deionizer a) Check the conductivity measurement of the coolant to see that it drops below alarm level when coolant is circulated. 5.1.3.6 Measurement a) Verify conductivity meters. b) Observe pressur
46、e and temperature meters and check calibrations as recommended by the manufacturer. 5.1.3.7 Flow meters a) Verify correct installation of flow meters. b) Verify proper operation of flow meters. 5.1.3.8 Pressure test a) Pressure test the system and check for leaks in piping, welds, and connections. 5
47、.1.4 Control equipment 5.1.4.1 Power supplies a) Record power supply input voltage and check to ensure that the subunit supply indication is healthy. b) Observe that changeover on loss of input voltage causes no voltage dip in control equipment. c) Observe correct alarm signal on loss of power suppl
48、y. d) Confirm that controls perform at highest and lowest specified voltages. 5.1.4.2 Interconnecting cabling a) Check that all the interconnecting cabling to other equipment is correctly connected in accordance with drawings and diagrams. 5.1.4.3 Control settings a) Verify that proper controller so
49、ftware version has been installed. b) Verify that the correct status and alarm signals (e.g., primary and secondary voltages, loss of supply, circuit breakers or disconnecting switches open, thyristor redundancy used) are sent to the monitoring system. c) Check to see that all settings correspond to values listed in design documents. d) Check to see that monitoring signals show correct values or correctly indicate alarms in response to injected signals. 11 Copyright 2011 IEEE. All rights reserved. IEEE Std 1303-2011 IEEE Guide for Static Var Compensator Field Tests 5.1.
