Application
The device is mainly aimed at consumers 10kV, 110 kv cable, 220kV 35kV, under compression experiment design and manufacture of substation exchanges. Reactor using separate design not only can meet high voltage, low current equipment test conditions request, and can satisfy the consumers 10kV cable such as low voltage ac pressure test requirements, has a wide scope, earth, city and county level shall high-voltage test departments and electricity installation, repair engineering unit ideal compression test equipment.
The system mainly includes VFC source, excitation transformer, resonant reactors, capacitance bleeder composition.
Technical parameter
1. Rated test voltage:200KV, to meet 220kV AC withstand voltage testing;
2. Output voltage waveform distortion rate: < 1.0%
3. Continuous working allowed: 30mins under voltage; 60mins if cables testing;
4. The device itself quality factor: Q > 50
5. Cable full load factors: Q > 30 ( load related)
6. Input voltage: 380V single phase
7. Frequency adjustment range: 30Hz ~300Hz
8. System measuring precision: 1.5%
9.Device high accuracy.with, over-current, zero startup, shem winding protection protection function
Equipment follow standard
"Electrical equipments installation project electrical equipment handover testing standards" GB50150-2006
The high-pressure resonance test device 849.6 DL/T of 2004
The reactor "GB10229.88
The electric power equipment preventive testing rules DL/T596-1996
The coupling capacitors and capacitance bleeder "IEC358 (1990)
Syetem configuration and technical parameter for each part:
1. Inverter power:
1.1 Technical parameter
1.1.1 Power rating: 50kW ;
1.1.2 Input voltage: 380V±15% 50Hz single phase
1.1.3 Output voltage: 0 ~ 400V adjustable
1.1.4 Output voltage frequency: 30 ~ 300Hz
1.1.5 Frequency adjustment: 0.1 Hz stepping adjustable
1.1.6 Frequency instability degrees: ≤ 0.02%
1.1.7 Output current: 0 ~ 75
1.2 Performance feature:
1.2.1 Placed way: the placement of variable frequency power for longitudinal and transverse, especially suitable for field operation and observe.
1.2.2 Shockproof protection: internal and external have special damping rubber support foot and protect aluminum boxes, which can effectively slow motion and lifting the bumpy transport the shock. Ensure the inverter power long-term stability and reliability.
1.2.3 Parameter display: touch or external mouse LCD interface display system.
Can show resonance voltage (namely test before setting goals voltage), test frequency, measure frequency, low-pressure voltage, low voltage electric current, voltage time, over-voltage protection, over-current protection, flash winding protection, phase booster and stage timing, operation mode switch, capacitor, inductance, frequency swap calculation, parameters, still can show inquiry on frequency curve, voltage curve can intuitivey judgment when trials resonance frequency accurately and stability.
1.2.4 Parameter Settings: big screen touch LCD backlit and external mouse directly in completing various parameters Settings. But on the initial frequency, termination frequency, starting voltage, phase booster and timing, measuring bleeder variable ratio, incentive change ratio, over-voltage protection, over-current protection, flash winding protection, test mode, capacitance inductance frequency swap calculation, parameter setting tips, and help parameters Settings or choice.
1.2.5 Test mode: touch screen and external mouse operation, there is automatic and semi-automatic, manual three operating status. With pressor, tuning (including manual, automatic), subsection pressurized and timing, running status, pattern switching, troubleshooting tips, capacitance inductance frequency swap computing functions, etc.
1.2.6 Protection function and information clew: having high-pressure over-voltage protection, low-pressure over-current, over-current protection, as well as detuning protection, zero, shem winding protection, emergency stop, undervoltage protection multiple protection function.
1.2.7 Data storage function: test results preservation, print, upload, back to check, etc.
A) Test results: manual or automatic test is finished, the interface of the test results can
show trial, when test detailed parameters, may indicate a dramatic disruption interrupt
state. Can be stored in memory, the parameters of the memory for non-volatile memory,
can save 50 times test records.
B) Data query: but will have saved the test results data displayed on the screen. Also has USB interface, can print or using equipment data output carried by playing printing machine to print.
1.2.8 Automatic voltage function: system according to the test voltage or manually set of automatic tracking and boost results, stable test voltage, voltage stability can amount to 1.5%.
1.2.9 FM range and frequency resolution all can set: FM range set to 30 ~ 300Hz, on-demand setting, can accelerate tuning process; The frequency resolution, according to the needs, presetting 0.1 Hz, 0.2 Hz, 1.0 Hz, or 2.0 Hz, efficiency and tuned in tuned balance between accuracy obtained optimization.
Frequency adjustment is divided into thick harmonic fine tuning, and automatic resonant point, guarantee for trials in the whole experiment resonant frequency process does not happen drift.
2. Reactors ( 4 units ) :
2.1 Technical parameter
2.1.1 Rated voltage: 40kV
2.1.2 Rated current: 1.5A
2.1.3 Rated inductance: 102H
2.1.4 Continuous working time: 60min
2.1.5 Temperature rises: < 60˚C
2.1.6 Working frequency: 30 ~ 300Hz
2.2 Performance characteristics
2.2.1 Reactor design using core type structure, enamelled wire windings, dry from cold. Reactor free convenient fold outfit. Epoxy insulating tube shell, with enough electrical, mechanical strength, thermal capacity and the necessary oil heat bilges cold shrink the tolerance. Reactor shell with another cabin base, by day reactor at the top. Shell spraying tangerine JueYuanQi.
2.2.2Reactor shell with another cabin base, by using upper section reactor card slot for field use, combining.
3.Incentive transformer ( 1 unit ) :
3.1 Technical parameter
3.1.1 Rated capacitance: 50kVA
3.1.2 Input voltage: 380V
3.1.3 Output voltage: 2kV/4kV/6kV/10kV/0.4kV
3.1.4 Output current: 25A/12.5A/8.3A/5A
3.2 performance characteristics
3.2.1Cooling mode: baffle dry type epoxy resin casting structure, heat-resistant level for H level.
3.2.2High and low voltage windings and iron core are seven electrostatic shielding layer between, both as excitation transformer and isolation transformer.
4.Capacitance Divider( 1 unit ) :
4.1 Technical parameter
4.1.1 Capacitance: 1000pF
4.1.2 working frequency: 30 ~ 300Hz
4.1.3 uncertainty: 1.0%
4.1.4 Rated voltage:200kV
4.2 Performance characteristics
4.2.1 under continuous operation can be rated voltage 60min.
4.2.2 In 30 ~ 300Hz range, its accuracy and stability keep requirements unchanged.
4.2.3 In 20 ℃, 0.4 ~ 0.5 UN dielectric loss value: ≤0.0025
4.2.4 Separate pressure when than error: RMS 1.0%, when more than more than 1.5% peak.
4.2.5 High and low voltage arm capacitance adopt consistent medium structure, the temperature coefficient is small, angular 300H small, in 20 ~ than constant pressure inside points.
4.2.6 Voltage measurement through the special test leads led to frequency conversion power measurements.
0.1Hz VLF AC/DC Hipot tester
