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420/500/550kV变电站常用试验设备

2016-01-26 09:57:30

420/500/550kVCommon test equipment for substation
1、High voltage power supply

No. Name Specifications Model Quantity Function
1 DC High voltage generator RDZG-400kV/5mA 1 set DC voltage withstand test of power transformer, cable and other equipment; DC characteristic test of zinc oxide arrester
Output voltage DC: 400KV, Current 5mA
2 Frequency conversion resonant voltage test device RDXZ-2880kVA/720kV 1 set AC voltage withstand test of CT. GIS of 500kV and below substation; testing voltage: 720kV (220kV, cable 1200m㎡, length 3km, testing voltage 178kV)
Voltage output AC: 720kV, current 4A
3 Light test transformer RDYD-35kVA/350kV 1 set Voltage withstand test of transformer, switch, PT, CT and other electric equipment
Output voltage AC: 350kV capacity: 35kVA
4 Induction voltage test device RDDBF-30kVA 1 unit Induction voltage withstand test of transformer
Capacity: 30kVA, output voltage: 0-400V, output frequency: 0-300Hz
 
2、Electric testing instrument
 
No. Name Specifications Model Quantity Function
1 Transformer DC resistance tester RDZR-50A 1 unit transformer winding measurement maximum output current 50A
Range:40μΩ~400mΩ  (50A)
    100μΩ~1Ω    (20A)
   500μΩ~2Ω   (10A)
   1mΩ~4Ω    (5A)
2 Loop Resistance Teste RDH-200A 1 unit Contact resistance measurement of breaker’s galvanic circle
Measuring range: 0-1999.9μΩ
Measuring current: DC≥200A
3 Ground resistance tester RD2571-II 1 unit Transformer and line of 500kV and below
4 Large ground network grounding resistance tester RDWR-5A 1 unit Transformer of 500kV and below
Ground network measurement output: AC 5A 400V
5 Transformer volt-ampere characteristic tester RDHG-F 1 unit Measure 5% and 10% of error bars, ratio and polarity of CT, and validate whether it could satisfy the requirement of protection device
Maximum output current: 600A
Maximum output voltage: 2500V
6 Anti-interference dielectric automatic tester RD8000 1 unit Testing of transformer, PT, CT, capacity and dielectric loss
Anti-interference index: Frequency interference, can fulfill accuracy requirement under 200% interference
Capacity range: 3pF~60000pF/10kV   60pF~1μF/0.5kV
Tgδ range: unlimited; resolution ratio 0.001%; auto recognition of capacity, inductance and resistance
7 Automatic capacitance inductance tester RD-500L 1 unit Non-disassembly measurement of the capacity of capacitor bank
Capacity range: 0.1μF ~ 2,000μF;
8 Automatic transformer turn ratio & group tester RDB-II 1 unit Ratio & group of transformer & AT
Testing range: ratio: 1~9999.9; group: 0~11
9 Circuit breaker characteristic tester RDGC-8 1 unit Measurement of 12 fracture, motion time, synchronism, bounce process, contact gap, travel and component and  resultant velocity
Time: range 4000.0ms; resolution ratio 0.1ms
Velocity: range 20.00m/s; resolution ratio 0.01m/s
Travel: range 600MM
10 Zinc Oxide arrester tester RDYZ-306 1 unit Measure the total current, resistant current and its harmonic wave, power frequency voltage, active power and phase difference current
Range of measurement: 0  ~ 10mA
Voltage output range: 10 ~ 200V
Accuracy: ±3%
11 Three phase microcomputer relay protection tester RDJB-1200 1 unit Comprehensive security detection: voltage protection, current protection, differential protection, low cycle protection and group test, etc.
Output six phase current, six phase voltage
Single phase current output   0~40A
Single phase voltage output  0~120V
12 Large current generator RDSL-82-5000A 1 set Maximum output: AC500A; meter accuracy: 1.5%
13 Cable identification instrument RD-2134 1 set Professional instrument for recognizing a certain cable from a bunch of cables
Accurate recognition, no eclectic judgement, accuracy rate: 100%
14 Transformer no load & on load characteristic tester RDBR-IV 1 unit Measurement of transformer short circuit impedance, no-load current and no-load loss
Current testing range: 0.5A~60A
Voltage testing range: 10V~650V
15 On load switch tester RDKC-2008 1 unit Accurate measurement of on load tap switch’s transition time, transition waveform, transition resistance, three phase synchronism and other parameters (range: 0.3~40Ω, accuracy: 0.3Ω~1Ω±0.1Ω,1Ω~40Ω±5%)
16 Vacuum Switch Vacuum Degree Tester RDZK-IV 1 unit Vacuum degree of vacuum breaker
Testing range: 10-5 ~ 10-1 Pa
17 AC/DC voltage divider FRC-200M 1 unit Testing voltage measurement (range 0-200kV accuracy 0.5%)
18 Insulation resistance tester RD3200 1 unit Measurement of insulating resistance, absorptance, polarization index
Range 2.5MΩ-50GΩ; accuracy ±5%
19 Cable fault tester RD-313X 1 set Measurement of the fault point of fault cable and accurate positioning
Testing distance: no less than 40km, testing deviation: systematic deviation less than ±1%
Shortest testing distance (blind spot): 5-10 meters
Accurate positioning deviation:±0.2m
20 High voltage phasing tester TAG6000 1 set Wireless testing line phase meter, frequency, voltage wave (phase difference measurement accuracy: ±3; frequency accuracy: ±1Hz)
21 Intelligent battery discharge tester RDSD-1A 1 unit 绝缘子盐密测量
21 Intelligent battery discharge tester RDKR系列 1 set Mainly used for the discharging testing of lead-acid battery of backup power in China Telecom, China Mobile, China Unicom and power DC industry
22 Intelligent battery internal resistance tester RDBT系列 1 set Through online testing, it can show and record multiple groups of battery voltage, internal resistance, connection strap resistance and other important battery parameter, accurately and effectively judge battery condition 

3、Oil & gas testing instrument

No. Name Specifications Model Quantity Function
1 Chromatographic instrument RDC-9560 1 set Measuring temperature range of gas composition in transformer oil
Column compartment: room temperature +15℃—399℃
Vaporizing chamber: room temperature +30℃—399℃
Reformer: room temperature +30℃—399℃
Thermal conductivity detector: room temperature +30℃—399℃
Hydrogen flame detector: room temperature +30℃—399℃
Accuracy: ±0.1℃
2 Closed-up flash point tester (Auto) RDBS3000 1 unit For testing the liquid flash point of the surface film formed by the solid suspended matter of insulating oil under testing condition
3 Acid value determination apparatus RDSZ-II 1 unit Measurement of the acid value of the tested insulating oil
Range of measurement: 0.001~0.400mgKOH/g
Accuracy:
The acid value between 0~0.100mgKOH/g is 0.005mgKOH/g
The acid value between 0.100~0.400mgKOH/g is 5%
4 PH meter RDPH-335 1 unit Measure pH value of insulating oil
Range of measurement: pH 0.00-14.00
Temperature 0.0-99.9℃ (optional)
Accuracy ±1%F.S
5 Insulating oil test set RDJJC-100kV 1 set Automatic testing of penetration and voltage withstand of insulating oil
Auto static, stir, boost, penetrate, step-down (output voltage 0~80kV;accuracy 2.0%)
6 Oil dielectric loss tester RD6100 1 set testing of insulating oil’s dielectric loss
Testing range: capacity: 1pF~200pF
Dielectric loss: 0~10%
Accuracy: capacity: ±(0.5%×C+1pF)
Dielectric loss: ±(1%×D+0.00008)
Resolution ratio: capacity: 0.01pF
Dielectric loss: 1×10-5
7 SF6 gas density relay calibrator RDJD-II 1 set SF6 density relay check: shutting restore values, alarm restore values, over voltage restore values, alarm values, shutting values, over voltage values (accuracy ±0.25%)
8 High-accuracy SF6 gas leakage meter RDWG-II 1 set External testing of the weld and airway connection of sealed gas chamber; Minimum testing value: 0.01μ1/1
Testing range:  10~30μ1/1
      100~200μ1/1
                       300~500μ1/1
Indication deviation: ≤±3%
9 Intelligent water meter RDWS-242 1 set Measure minim moisture content sensor for SF6 gas
Dew point
Range of measurement: -60 ℃~+20 ℃
Accuracy: ±0.5℃(-60℃~+20℃)
Reaction time (+20℃) :<3分钟

4、Common instrument


No. Name Specifications Model Quantity Function
1 Single phase contact voltage regulator TDGC-3kVA 1 unit AC single phase 0~250V voltage regulator
2 Three phase contact voltage regulator TSGC2-15KVA 1 unit AC three phase 0~380V voltage regulator
3 Digital clip-on ammeter UT205 1 unit Measure current (range 0~400A; accuracy 1.5%)
4 Earth rod, electroscope EC-II 1 set Secure protection, electrical measurement
Applicable for 110KV substation
5 Multimeter UT53 1 unit A multifunctional and multirange meter for measuring voltage and current, some can measure other quantity of electricity, such as resistance and capacity (accuracy 1.0%)
6 Wheatstone bridge QJ23 1 unit Measure DC resistance value between 1~11.110MΩ
7 Kelvin bridge QJ44 1 unit Measure DC resistance value between 0.00001-11.000Ω
8 Phase sequence indicator RDXZ-II 1 unit Indicate the clockwise of three phase sine AC power phase sequence
9 Thermos-hygrometer HTC-1 1 unit Measure the testing environment, and the temperature and humidity of high voltage electric tester (accuracy ±1.8℃)
10 Digital dual-phase voltammetry table clamp RDML-12A 1 unit Check the loop of current and voltage
11 CT secondary on-load tester RDCT-P 1 unit Secondary onload measurement
12 The three meters’ test set RDS-II 1 set Check current, voltage and power meter (accuracy 0.05%)  
13 Infrared radiation thermometer UT300 1 unit M easure the testing environment and the temperature of high voltage electric tester  
Temperature range: 32~1050℃ (accuracy ±1.8℃)  
14 Low power-factor wattmeter D34/1-W 1 unit Measurement of power


 

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