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.
Details & Features:
Specification:
System Specifications
- Power supply: 380V±10%,50/60Hz
- Rated Capacity: 15kVA
- Output Voltage: 150kV, 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: AC380V±10%, 50/60Hz
- Capacity: 15kVA
- Output voltage: AC 0-430V
- Rated input current: 37.5A
- HV voltmeter range: 0-150kV
- Timing range: 0-999s
- Voltage and current accuracy: ≤1.5%(F.S)±2digits
- Environment temperature: -20ºC to 50ºC
2. PD-free Gas testing transformer (HV unit)
- Rated capacity: 15kVA
- Input voltage: 0-400V
- Input current: AC 0-37.5A
- Output voltage: AC 0-150kV
- Output current: AC 100mA
- Voltage accuracy: AC ±0.5%
- PC value on rated voltage: ≤5pc
- Voltage distortion factor: <3%
- Insulation dielectric: SF6 gas
3.Coupling capacitor
- Rated frequency: 50/60Hz
- Standard capacitance: 800pF±10%
- Rated voltage: 150kV
- 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: 150kV
- Resistance: 8kΩ
- Rated current: 0.1A
- Permitted operation time: same with testing transformer
5. Isolation filter LBQ-15kVA
- With L-C filter loop circuit, and built-in filter compensation device
- Rated capacity: 15kVA
- Rated voltage: 400V
- Rated current: 37.5A
- 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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