PD free Hipot Tester
Non-Partial Discharge
UDEY ‘HT-PDF series’ of AC High Voltage testers are the third generation range of UDEY’ s famous ‘HP series’ of HV breakdown testers. The main difference is that the HT transformer is partial discharge free.
‘HT-PDF series’ uses oil insulated high voltage generating transformer, housed in isolated round barrel type mobile cabinet.
Feature
- Panel mounted controls and indicators with easy to read legend
- Continuously variable motorized output control
- Double range kV + mA meter
- Selectable trip current
- Timer of 1-3-5 minutes
Safety Feature
- Zero start interlock (User must always raise voltage from minimum. HV is switched on only when voltage control is brought to zero)
- External interlock
- Audio + Visual alarms
- Fast acting over load circuit breaker. MCB-magnetic overload protection
| HT transformer | Copper double wound, isolated, high efficiency transformer No load current < 10% Impedance < 10% Partial discharge < 10pC under 100% rated voltage |
|---|---|
| Output Control | Continuously variable by motorized control. |
| Rating | 10 minutes at 100% voltage and current |
| Metering | Analog, 96 mm2, linear double scaled, kV Meter. Analog, 96 mm2, linear double scaled. mA Meter in the output. |
| Accuracy | ± 3% full scale deflection. |
| Protection | MCB, a fast acting D.C. relay isolates the H.T. at trip level. |
| Interlocking | Zero-start interlocking for H.V. output. |
| Timer | 1-3-5 minutes. Timer can be switched off from circuit. |
| Auxiliaries | Mains MCB switch, Push-buttons switches for ‘H.T.ON’,‘H.T.OFF’, ‘RESET’,’RAISE’ ‘LOWER’ . |
| Indicators | ‘Mains’, ’HT OFF’, ‘HT ON’, ‘READY’, ‘Breakdown”. |
| Termination | H.T. End insulated and other end at earth potential. |
| Enclosures | The unit will be in two parts: Control Unit:Houses switches, MCB, lamps, variac etc in amsheet metal case type mobile. H.T. Unit :Round barrel type mobile. |
| Accessories | 1. Mains wires 3 core, 2 meter long. 2. Inter connecting cable 5 meter long. 3. Instruction manual. |
| Model | INPUT AC | OUTPUT AC RMS | kV meter range | mA meter range | Trip setting | |
|---|---|---|---|---|---|---|
| kV | mA | |||||
| HT-PDF-100-100 | 230V | 100 | 100 | 0-50-100 | 0-50-100 | 25-50-75-100 |
| HT-PDF-100-500 | 400V | 100 | 500 | 0-250-500 | 0-250-500 | 125-250-375-500 |
| HT-PDF-120-100 | 400V | 120 | 100 | 0-60-120 | 0-50-100 | 25-50-75-100 |
| HT-PDF-150-100 | 400V | 150 | 100 | 0-75-150 | 0-50-100 | 25-50-75-100 |
- + Feature
Feature
- Panel mounted controls and indicators with easy to read legend
- Continuously variable motorized output control
- Double range kV + mA meter
- Selectable trip current
- Timer of 1-3-5 minutes
Safety Feature
- Zero start interlock (User must always raise voltage from minimum. HV is switched on only when voltage control is brought to zero)
- External interlock
- Audio + Visual alarms
- Fast acting over load circuit breaker. MCB-magnetic overload protection
- + Technical Specification
HT transformer Copper double wound, isolated, high efficiency transformer
No load current < 10%
Impedance < 10%
Partial discharge < 10pC under 100% rated voltageOutput Control Continuously variable by motorized control. Rating 10 minutes at 100% voltage and current Metering Analog, 96 mm2, linear double scaled, kV Meter.
Analog, 96 mm2, linear double scaled. mA Meter in the
output.Accuracy ± 3% full scale deflection. Protection MCB, a fast acting D.C. relay isolates the H.T. at trip level. Interlocking Zero-start interlocking for H.V. output. Timer 1-3-5 minutes. Timer can be switched off from circuit. Auxiliaries Mains MCB switch, Push-buttons switches for ‘H.T.ON’,‘H.T.OFF’, ‘RESET’,’RAISE’ ‘LOWER’ . Indicators ‘Mains’, ’HT OFF’, ‘HT ON’, ‘READY’, ‘Breakdown”. Termination H.T. End insulated and other end at earth potential. Enclosures The unit will be in two parts:
Control Unit:Houses switches, MCB, lamps, variac etc in amsheet metal case type mobile.
H.T. Unit :Round barrel type mobile.Accessories 1. Mains wires 3 core, 2 meter long.
2. Inter connecting cable 5 meter long.
3. Instruction manual.Model INPUT AC OUTPUT AC RMS kV meter range mA meter range Trip setting kV mA HT-PDF-100-100 230V 100 100 0-50-100 0-50-100 25-50-75-100 HT-PDF-100-500 400V 100 500 0-250-500 0-250-500 125-250-375-500 HT-PDF-120-100 400V 120 100 0-60-120 0-50-100 25-50-75-100 HT-PDF-150-100 400V 150 100 0-75-150 0-50-100 25-50-75-100