ComPass B
Directional short-circuit and earth fault direction indicator
The ComPass B combines the functions of a directional short-circuit and directional earth fault indicator in one unit for medium voltage distribution networks. The voltage information will be taken from the integrated voltage detecting system, either Wega 1, Wega 2, Wega 1 V or Wega 2 V. Optional the voltage information can be taken from the HR interface or capacitive post insulators.
Product features
- Short-circuit and earth fault direction detection for all distribution networks / neutral point treatments
- LED and OLED display: for good visibility
- Monitoring of V, I, f
- Load monitoring and load flow direction monitoring P, Q, S, cos φ, E
- Voltage band monitoring V<, V>
- Active energy in load flow direction A↑ or B↓
- Multilingual OLED display and additional multicolor LED
- Remote signaling via RS485 / Modbus interface and 4 freely programmable relay contacts
- Intuitive and easy operation
OLED display for good readability
Multicolor LED
Rocker switch
Your added value
- Fast fault location
- Immediate detection of voltage band violations
- Availability of measured values in the control room and on site
4 potential-free, freely programmable relay contacts
Modbus connection
Terminal strip
Technical data
| ComPass B | |
|---|---|
| Short-circuit indicator | ✅ |
| Earth fault indicator | ✅ |
| Earth fault location method | Earth short circuit, cos φ, sin φ, pulse detection |
| Measured values / display |
|
| I>> Response values Short-circuit current | 50 – 2,000 A |
| tI>> Response delay | 40 ms – 60 s |
| IE> Response values Earth fault current | 20 – 1,000 A (low-impedance / rigidly earthed system) 5 – 200 A (isolated / compensated system) (1 A steps) |
| tIE> Response delay | 40 ms – 60 s |
| ΔIE> Response values Pulse localization (clock stroke) | 1 – 200 A tIEP> / tIQP> Response delay: 40 ms – 60 s |
| VNE> Response values continuous earth fault | 0 – 100 % tVNE> Response delay: 40 ms – 60 s |
| U> Overvoltage response values | 100 % – 200 % |
| U< Undervoltage response values | 0 % – 100 % |
| Measuring accuracy phase currents | 3 % (0 – 630 A, resolution 1 A) 5 % (630 – 1,500 A) 10 % (1,500 – 2,000 A) |
| Display | LED status display (multicolor) OLED display (multilingual) |
| Remote signaling / communication | 4 potential-free, freely programmable relay contacts RS485 / Modbus interface |
| Remote signaling contact | 4 permanent or wiping contacts (1 s), NC or NO contact Contact rating: 230 V AC / 1 A / 62.5 VA max.; 220 V DC / 1 A / 60 W max. |
| Reset |
|
| Supply | |
| External auxiliary voltage | 24 V – 230 V AC / DC (±10 %) |
| Internal power supply | Long-life lithium cell, >1,000 h total flashing time of the LED, >1,000 display activations |
| Housing | Polycarbonate, IP40 |
| Temperature range | -30 °C to +70 °C |
All important documents for the device
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Other short-circuit and earth fault indicators
ComPass A 2.0
- Load current monitoring
- Detection of earth faults and short circuits for NOSPE/ KNOSPE networks
- Fault indication without directional information
ComPass B 2.0
- Highly accurate monitoring
- Detection of earth faults and short circuits for all networks
- Directional fault indication
ComPass Bs 2.0
- Fault direction indicator with monitoring
- Detection of earth faults and short circuits for all networks
- Switching ComPass Bs 2.0 for controlling a switch-disconnector or circuit-breaker remotely