Voltage detectors
Compare 2.0
The phase comparator Compare 2.0 is a single-pole, capacitive phase comparator for voltages from 5 – 36 kV. The device detects “correct phase relationship” or “incorrect phase relationship” conditions between two live conductors of a medium voltage distribution network.
Confirming to IEC 61481 Class B, “incorrect phase relationship” appears at a phase angle between 60° and 300°.
Four bright LEDs indicate various operational conditions.
The turning knob is used to select between three voltage ranges::
1: 5 – 10 kV
2: 10 – 20 kV
3: 20 – 36 kV
The phase comparison is realised by contacting the conductors one after the other.
In medium voltage networks with decentralised renewable energy feed-ins, measurement interruptions may occur. In such cases repeat the phase comparison. It is impossible to get a wrong indication.
According to the German accident prevention standard DGUV Regulation 3 (Table 1c), the device is subject to maintenance tests with minimum intervals of at least 6 years.
- Designed according to IEC 61481 (VDE 0682-431)
- Single-pole, capacitive phase comparator
- Detection of correct phase relationship and incorrect phase relationship between two live conductors
- For dry conditions
- Optical indication
- Built-in self-test function
Technical specifications
| Dry conditions | --- |
|---|---|
| Dry and wet conditions | --- |
| Self-test | --- |
| Visual | --- |
| Visual and acoustic | - |
| Indication | 1 white LED/1 blue LED/1 green LED/1 red LED |
| Nominal frequency | 50 Hz |
| Voltage range selectable | --- |
| Dismountable | --- |
| Power supply | 2 lithium cells, battery service life: 6 years based on 10 ready-to-operate cycles per day for a total of 230 work days per year |
| Operating class | B (indication of phase unbalance in the range of 60° – 300°) |
| Temperature range | -25 to +70 °C, climatic class N and W |
