How to judge the quality of test equipment? The company needs to purchase several high-voltage test equipment in the near future, such as switching characteristic tester, resonance test device, etc.

How to judge the quality of test equipment? The company needs to purchase several high-voltage test equipment in the near future, such as switching characteristic tester, resonance test device, etc.

Insulation withstand voltage test equipment

SJTU series impulse voltage generator

YDQ series inflatable ultra-light test transformer

YDQD series inflatable multi-purpose high-voltage test transformer with tap

YDQW series Inflatable halo-free ultra-light test transformer

YDQJC series inflatable series-excited high-voltage test transformer

YD series oil-immersed high-voltage lightweight test transformer

YDJC series series-excited Light test transformer

EDCDP series ultra-low frequency high-voltage generator

GTU series high-voltage large-capacity inflatable non-partial discharge high-voltage combination transformer

JY series insulated cylinder type No partial discharge fully insulated test transformer

EDCZB-09 type operating wave generator device

GTB series dry high voltage test transformer

ED2690/ED2691 intelligent withstand voltage Tester

ED2671A Universal AC/DC Withstand Voltage Tester

ED2670/ED2670A Universal AC Withstand Voltage Test

ZDTC Series High Voltage Test Transformer Electric Operating Station

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ED2672/ED2672A withstand voltage/insulation resistance test

ED2670B universal AC/DC withstand voltage tester

TPXB series FM series resonance device

TC series high voltage test transformer operating console

XC series high voltage test transformer operating box

TPXB-B series substation electrical equipment AC voltage withstand frequency modulation string

TPXB-C Power frequency series resonance device for series CVT inspection

TPXB-D series cable AC withstand voltage frequency modulation series resonance device

TPXB-E series generator AC voltage withstand frequency modulation inductance series resonance< /p>

TPXB-F series generator AC withstand voltage power frequency series resonance device

TPCB series frequency conversion control power supply

EDYD series excitation transformer

EDFC series capacitive voltage divider

EDDK series reactor

DMA2550 type insulation resistance tester

DMB5000 type insulation resistance tester

DMC2000 type insulation resistance tester

DMD series insulation resistance tester

DME2305 digital display insulation resistance tester

DME2306 digital display insulation resistance tester< /p>

Q50-300 discharge protection ball gap

FRC series AC and DC digital voltage divider

H9840 protected DC digital microammeter

High-voltage filter capacitor

TAG6000 wireless high-voltage phase nuclear device

2DL series high-voltage silicon stack

FZ series high-voltage DC discharge rod

FRD type high-pressure nuclear phase detector

YDQ-II type acousto-optic telescopic electroscope

400ml standard oil test cup

Pressure equalizing ball

< p>Water resistance

Warning lights, warning signs

EDC series high-voltage capacitors

Test wires, current type, voltage type multi-functional connectors, connectors< /p>

Product Overview

TPXB-D series cable AC withstand voltage frequency modulation series resonance device adopts the method of adjusting the power frequency to make the reactor and the capacitor under test achieve resonance. Obtaining high voltage and large current is a new method and trend in high voltage testing, which has been widely used at home and abroad.

At present, a large number of cables are used with voltage levels of 35kV and below, and the test workload is large, so this type of withstand voltage test device should be small in size and light in weight.

Therefore, the TPXB-D series cable AC withstand voltage frequency modulation series resonance device produced by our company ensures that the weight of each individual component of the product does not exceed 50 kg, making it suitable for on-site handling.

The power supply adopts 220V single-phase power supply or 380V single-phase power supply, which is convenient for on-site power collection; the reactor part adopts dry epoxy casting, which is beautiful and reliable, and suitable for the requirements of various types of cables. Some configurations can also meet the AC withstand voltage test of 110kV cables.

Equipment composition

◆TPCB-B type variable frequency control power supply

◆EDYD series excitation transformer

◆EDDK series reactor

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◆EDFC series capacitive voltage divider

◆EDC series high voltage capacitor

◆Various connecting wires

◆Connect to DZCL series high voltage rectifier Silicon stack and H9840 DC digital microammeter can complete the DC withstand voltage test of the equipment. Since the system has good filtering characteristics after resonance, the DC voltage it generates is better than the DC voltage rectified by the ordinary test transformer.

Product Features

◆Easy to operate. Three modes: manual test (manually search for resonance point and manual voltage boost), automatic tuning (automatically search for resonance point) and automatic test (automatically search for resonance point and automatic voltage boost) adapt to different test requirements

◆Part The discharge amount is small, the Q value is high, and the frequency modulation range is wide.

◆There is no transient overvoltage after flash soldering.

◆This device has a unique design. The test voltage of high-voltage combined electrical appliances is high, but the test current is small. The test voltage of high-voltage cables is lower than that of high-voltage combined electrical appliances, but the test current is greatly increased. Therefore, this type of frequency modulation resonance device divides the reactor into n sections so that they can be connected in series. Output high voltage/low current, parallel connection can output lower voltage/high current.

◆We can fully expect conventional test transformers to complete the AC withstand voltage test in the substation. The power supply capacity required for the test is small, 1/20 to 1/30 times of the test capacity, which can solve the variable power supply capacity of the transformer. Less than test capacity problem.

◆The test range is large, and AC vibration withstand tests can be conducted on CT, PT, openings, circuit breakers, insulators, neutral points of bus transformers, etc.

◆Light in weight, the weight of a single piece is ≤40kg, easy to move, and extremely convenient for ready-made testing.

◆The device can test on-site XLPE cross-linked polyethylene cables with a voltage level of 220KV and a length of 1200mm2 up to 10 kilometers.

◆The large screen displays test data, status and real-time operation step prompts

◆Adopts our company's proprietary 16-bit fine frequency modulation and voltage regulation software expertise, 11KHZ carrier frequency, SPWM And imported original IPM overall module. With appropriate reactors, it can meet the frequency range specified by the national and local power departments, and the whole machine is ahead of similar products at home and abroad.

◆Software fine frequency adjustment and voltage adjustment.

Main technical indicators

◆Rated output voltage 0~500KV (AC effective value) and below

◆Output frequency 20~300HZ

< p>◆Resonant voltage waveform is pure sine wave, waveform distortion rate <1.0%

◆Maximum test capacity 5000KVA and below

◆Under full power output, one continuous working time 60min

◆Quality factor 30~90

◆Frequency adjustment sensitivity 0.1HZ, instability <0.05%

◆Working power supply 380/220V±15% /50HZ±5%

Tested product parameters required for user selection

◆Tested product object and maximum test voltage

◆Single cable Length and cross-section, test time, maximum test voltage, etc.

Switch detection equipment

ED0301HMT switch low-voltage circuit breaker tester

ED0301C high-voltage switch dynamic characteristics tester

ED0301A contactor Synchronous tester

ED0301B high-voltage switch dynamic characteristics tester

ED030G high-voltage switch dynamic characteristics tester

ED0303B loop resistance tester

ED0302A high-voltage switching operating power supply

ED0302B high-voltage switch action tester

ED0303A loop resistance tester

ED0301E high-voltage switch action characteristic test Instrument

ED0301F high-voltage switch dynamic characteristics tester

ED0301H graphite contact switch tester

ED0303C loop resistance tester

ED0301D type high voltage switch dynamic characteristics tester

ED0304-I type vacuum degree measuring instrument

ED0304-II type vacuum degree measuring instrument

ED0305A coal mine switch comprehensive Test bench

ED0305B high-voltage switching test power supply vehicle

ED0306 series universal temperature rise measurement system

DDG series portable high current generator

ED0309 DC circuit breaker ampere-second characteristic testing system

ED0307-1 switching characteristic intelligent testing system

ED0307-2 switching characteristic intelligent testing system

ED0307 -Type 3 switch characteristics intelligent test system

ED0308 high-voltage circuit breaker running-in test system

ED0310 switch cabinet partial discharge monitoring overall solution

ED03011A high-voltage Switch cabinet ground resistance tester

ED03011B high-voltage switch cabinet ground resistance tester

Functional features

◆Applicable objects: can test various domestic (imported) products Vacuum, sulfur hexafluoride, oil high-voltage circuit breakers, load switches, GIS grounding knife switches, contactors, relays, air switches, etc.

◆Test indicators: Can test circuit breaker time, synchronization, bounce time (number of times), stroke, speed, operating voltage, current, operating voltage, mechanical operation and other data and waveforms.

◆Anti-interference channel: Can withstand on-site 15KV induced voltage, and comes standard with 12 independent metal contact time channel test functions.

◆Dynamic resistance test: fracture analog voltage signal collection, optional 6-way closing resistance test; optional 10A graphite contact tester for the expansion channel, which can test Siemens (such as 3AQ1EE, 3AQEG, 3ATEE) Graphite contact switch, the lower computer can test 3-way graphite contact switch, and the upper computer 6-way can test 3-way graphite contact switch.

◆Displacement channel: 1 channel of displacement signal collection, adapted to durable precision resistance linear displacement and angular displacement sensors. It can also be adapted to users’ traditional self-configured sliding wire resistance sensors.

◆Operating power supply: built-in isolated digital adjustable DC power supply with short-circuit protection function, which can be adjusted according to the rated voltage ratio, commands various opening, closing, and reclosing operations and manual and automatic mode operating voltage tests and mechanical life testing.

◆Synchronous triggering: Multiple synchronous triggering methods can be set to respond to changes in voltage, current, sensor, and fracture interface. Meet the testing requirements under different conditions.

◆Operation interface: The lower computer adopts a 5.7″ black and white large-screen touch screen, the upper computer adopts an 8″ color LCD screen or CRT display, and a Chinese menu to complete the saving, calling, creating, deleting and setting of relevant parameters. , testing, analysis and other operations.

◆Character input: The slave computer has a built-in simple keyboard for inputting commonly used letters, numbers, and symbols. The switch model, speed definition and file name can be updated at any time, and the host computer can enjoy WINGDOWS support for Chinese character input.

◆Definition editing: Universal speed definition template, which can set, edit, modify, delete, and save various switch models and speed definitions to form the user's own switch definition library.

◆Wave recording function: 12 channels of ordinary metal contacts on and off, 6 channels of resistance contacts, 3 (6) channels of graphite contacts, coil voltage, current; stroke, speed and time waveforms.

◆Wide-format printing: The lower computer has a built-in 110mm wide-format high-speed thermal printer, and the upper computer has a built-in 58mm high-speed thermal printer, or other printers can be installed. The top-mounted panel is installed and the reading is intuitive. The data form prints beautifully and the waveform records are clear.

◆Data communication: USB or RS232 communication can be used, and PC upper operating software can be configured to directly use the computer to control the test and collect more data. And complete more diverse analysis and calculations on PC.

Technical parameters

◆Structural dimensions: Type: Top-opening portable (horizontal and vehicle-mounted types have different sizes)

◆Overall dimensions: 402mm×286 (302 ) mm × 160mm; host weight: 10kg

◆Using environment: ambient temperature: -10℃～50℃; relative humidity: <80%

◆Working power supply: voltage: AC220V ±10%; Frequency: 50Hz±5%

◆Safety performance: Insulation resistance: >2MΩ; Leakage current: <3.5mA

Dielectric strength: AC1500V50Hz, 1min (power input Wire to chassis)

◆DC power supply: adjustment range: 30~250V

◆Accuracy: ±(1% reading + 1 word)

◆Load change rate: ≤1%

◆Rated current: 20A

◆Maximum instantaneous current: 20A

◆Test channel: time fracture: metal contact 12 channels of 25V, current limit 100mA (standard configuration)

◆ Resistance contacts 6 channels of 25V, current limit 100mA (optional)

◆Graphite contacts (optional extended fracture) ): 3 channels of lower computer, 6 channels of upper computer (optional)

◆Displacement sensor: 1 channel

◆Time test: range: 0.1ms～3000ms (upper computer PC Machine data management software can be extended to 12s)

◆Resistance closing time: 0-999.9ms

◆Accuracy: ±(0.1% reading + 2 words)

◆Resolution: 0.1ms

◆Closing resistance: Range: 10～10KΩ

◆Accuracy: ±5% reading + 1 word (from 50Ω～ 5KΩ)

◆Resolution: 1Ω

◆Stroke test: Range: 0～1000mm

◆Accuracy: ±(1% reading + 1 word )

◆Resolution: 0.1mm

◆Speed ??characteristics: Range: 0.01～20.00m/s

◆Accuracy: ±(1% reading+ 1 word)

◆Resolution: 0.01m/s

◆Voltage characteristics: Range: 12-250V

◆Accuracy: ±(1% Reading + 1 word)

◆Resolution: 1V

◆Current characteristics: Range: 0.1A～20A

◆Accuracy: ±(2% Reading + 1 word)

◆Resolution: 0.01A

◆Graphic display: 0.1ms value for each channel

◆Synchronous trigger: voltage: 12 -250V

Current: 0.1-10A (20A)

◆Sensor: Displacement change

◆Fracture: Signal jump

Product Model selection:

Type A

12-way metal contact switch

Type B

12-way metal contact switch, 6-way Resistance contact switch

C type

12-way metal contacts, 6-way resistance contacts, 3-way graphite contact switch