The COMET high voltage tester generates an AC voltage of maximum 60/100kV peak. The frequency is that of the line voltage, either 50 or 60Hz. Depending on the selected position of the selector switch, the voltage applied to the test object can be AC or in the DC mode DC+ or DC- (half wave rectification).
The voltage applied to the item to be tested is measured in peak units independent of the position selected at the selector switch. In order to avoid damage to the capacitors to be tested, the DC output voltage is limited to 50kV.
The current ranges show a RMS value in the range of 30 and 1mA for the current flowing through the device being tested. In the AC mode this is true RMS value. In the case of DC this is a pulsating direct current if a resistor is being tested and a periodic charge current if a capacitor is in the test position.
In the 100µA range the leakage current of a capacitor can be measured. It must be noted that the DC voltage applied is pulsed (half wave rectification). Therefore the indicated current is a result of two currents, the leakage current and the charge current. Depending on the capacitance value and the level of the leakage current, the effect of the latter can be ignored.
Depending on the charge current and the leakage current present, the voltage on the capacitor is more or less affected by a ripple. The current shown is the average leakage current, depending on the ripple experienced.
Safety provisions:
- All high voltage components and connections contained within one envelope
- Safety interlocks on all access openings
- No high voltage connection outside the safety enclosure
- HV zero start feature
- X-ray radiation shielding
- Overload protection
- Grounding bar
- Provisions for external interlocks
LVO = Low Voltage Option:
- Reduction of the output voltage to approx. 20 %
- Increase of the sensitivity of the arc detector
| Type HV 100-30 with LVO | Type HV 60-50 withLVO | |
|---|---|---|
| With Low Voltage Option: | Part No. 91110 | Part No. 91210 |
| Electrical: | ||
| Output Voltage: AC DC |
0 - 100kV peak 0 - 50kV peak(incl. ripple) |
0 - 60kV peak 0 - 50kV peak(incl. ripple) |
| Output Current: AC DC |
0 - 30mA rms 0 - 1mA |
0 - 50mA rms 0 - 1mA |
| Measurement Currency: Voltage Current |
2% 20% |
2% 20% |
| Line Input Requirements: (to be specified at time of order) | 220V oder 110V | 220V oder 110V |
| Power Consumption: | 2150VA | 2150VA |
| Frequency: | 50/60Hz | 50/60Hz |
| Modes of Operation: AC DC |
continuous / pulsed +/- polarity |
continuous / pulsed +/- polarity |
| External (optional): |
|
|
| Type: | HV 100-30 / HV 60-50 |
| Net weight control unit: | 28kg |
| Net weight HV Tank: | 200kg |
| Gross weight HV test unit, incl. wooden crate: |
345kg |
| Dimesions HV test unit, incl. wooden crate: |
1400 x 1250 x 800 mm |
| Length of power cable and the two interface cables: |
3m |
| Product | Part-No. |
|---|---|
| External measurement set: | 91520 |
| HV cable 100 kV, 3 m: | 91530 |
| Remote display unit: | |
| 19" rack: | 91541 |
| Voltmeter: | 91542 |
| Amperemeter: | 91543 |
