Application:
It is mainly used for testing frequency voltage insulation level of various insulation materials, insulation structure and electrical products, also as partial discharge frequency testing power supply for testing object such as transformer, mutual inductor and lightning arresters. It widely used in electrical manufacturing, power operation departments, research institutes and universities.
The system includes:
1. Test Console
2. PD free oil/gas type transformer
3. Coupling capacitor
4. Protective resistor
5. Isolation filter
6. Partial discharge detector
7. Other accessories
Features:
- 320*240 LCD screen,high speed thermal printer.
- HV Voltage, LV voltage, LC current measured at the same time, with high precision sensor and high performance collection chip
- Automatic mode and manual mode for option.
- Display HV voltage, LV voltage, LV current, time and withstanding result.
- Over-voltage and over-current protection. Output voltage, HV current upper limit, LV current upper limit and timing can be set.
- Zero-starting function. Test can be proceed after the voltage is back to zero.
- Store up to 8000pcs data in 3months. It has USB port to upload data to USB disk.
- When setting voltage is arrived, it will timing automatically. After timing, voltage will be back to zero.
- When the LV current is over setting value, the voltage will be cut off automatically and it will be back to zero. When the HV current is over setting value, the test object will be cut off and test can be proceed continuously.
- With anti-interference ability, suitable for electromagnetic environment.
- With wheels for both control unit and HV unit, easy to move.
Specification:
System Specifications
- Power supply: 220V±10%,50/60Hz
- Rated Capacity: 10kVA
- Output Voltage: 100kV, current: 100mA
- Short-circuit impedance: <18%
- Operation time: 30mins@100% rated voltage and current.
Continuous working@ 2/3 rated voltage and current.
- Wave form distortion rate:<3% when voltage regulator input voltage distortion rate <3%.
- PD value:≤5pC @ 100% rated voltage
1. Control unit
- Power: AC220V±10%, 50/60Hz
- Capacity: 10kVA
- Output voltage: AC 0-250V
- Rated input current: 40A
- HV voltmeter range: 0-100kV
- Timing range: 0-999s
- Voltage and current accuracy: ≤1.5%(F.S)±2digits
- Environment temperature: -20ºC to 50ºC
2. PD-free Gas/Oil/dry type testing transformer (HV unit)
- Rated capacity: 10kVA
- Input voltage: 0-250V
- Input current: AC 0-40A
- Output voltage: AC 0-100kV
- Output current: AC 100mA
- Voltage accuracy: AC ±0.5%
- PC value on rated voltage: ≤5pc
- Voltage distortion factor: <3%
3.Coupling capacitor
- Rated frequency: 50/60Hz
- Standard capacitance: 800pF±10%
- Rated voltage: 100kV
- Voltage ratio: 1000/1
- Dielectric loss: <0.5%
- Measurement accuracy: 1%
- Permitted operation time: same with testing transformer
- PD value: ≤5pc on 100% of rated voltage, ≤3pc on 80% of rated voltage.
4.Protective resistor
- Rated frequency: 50/60Hz
- Rated voltage: 100kV
- Resistance: 8kΩ
- Rated current: 0.1A
- Permitted operation time: same with testing transformer
5. Isolation filter LBQ-10kVA
- With L-C filter loop circuit, and built-in filter compensation device
- Rated capacity: 10kVA
- Rated voltage: 250V
- Rated current: 40A
- Frequency: 50/60Hz
- Attenuation: 40kHz-100kHz ≥40dB
100kHz-1.5Mhz ≥60dB
- Permitted operation time: same with testing transformer
Company Profile
Wuhan Hezhong Electric Equipment Manufacture Co., Ltd is a high-tech enterprise professionally engaged in R & D, manufacture and marketing of power testing products, instruments, power industry automation systems for 20 years.We export completed set to Korea, Singapore, Vietnam, India, Ecuador, Paraguay, Pakistan, Philippines, Russia, Italy, Austria, Portugal, Chile such as PD test system, impulse voltage generator, temperature rising test system, transformer comprehensive test system, cable fault detect system and varies of instruments for transformer, circuit breaker, switchgear, lightning arrestor, insulator, cable, battery,SF6 gas and so on.
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