ComPass B
Short-circuit and earth fault direction indicator
The ComPass B is a combined short-circuit and earth fault direction indicator for medium-voltage networks. The measuring voltage is tapped via the integrated Wega 1, Wega 2 or Wega 1 V or Wega 2 V voltage test system. Alternatively, tapping is possible via HR interfaces or probes with capacitive decoupling (measuring lead set).
Product features
- Short-circuit and earth fault direction detection for all grid types /
Star point treatments - LED and OLED display: for good visibility
- Monitoring of U, I, f
- Load monitoring and load flow direction monitoring P, Q, S, cos φ, E
- Voltage band monitoring U<, U>
- 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, earth fault wiper, 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 |
| UNE> Response values continuous earth fault | 0 – 100 % tUNE> 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 |
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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
- Error display without direction indication
ComPass B 2.0
- Highly accurate monitoring
- Detection of earth faults and short circuits for all networks
- Error direction display
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