ComPass A 2.0
Short-circuit and earth fault indicator with current monitoring
The ComPass A 2.0 is suitable for use in central substations with telecontrol connection of electrical energy distribution in the medium-voltage grid. Fault values and pre-fault values are recorded and provided with a time stamp. In addition to the short-circuit and earth fault display, the ComPass A 2.0 measures the temperature, e.g. of the transformer or the station with a PT100. The collected information, measured values and the associated limit values are made available for transmission to the control room. Short-circuits and earth faults are also shown phase-selectively on the OLED display.
Product features
- Short-circuit and earth fault indicators for all medium-voltage networks
- Short-circuit and earth fault detection from just three single-phase current sensors
- LED and OLED display: for good visibility
- Two earth fault location methods
- Highly accurate current measurement up to 0.5 %
- High-precision monitoring of the variables current (I), temperature (T) and frequency (f)
- PT100 temperature sensor for monitoring operating equipment
- Limit value monitoring: I, T
- ComPass Explorer software: Commissioning and parameterization via front USB port
- Pulse localization for RESPE network
OLED display for good readability
Display of measured values and configuration via the display
Rocker switch
Mini-USB port for easy parameterization and commissioning
Your added value
- Fast commissioning and parameterization
- One indicator for all networks
- Retrofit ready for earth and short-circuit indicators with
monitoring/control and fault direction function
Reverse polarity protected plug-in terminals for quick and easy installation
Modbus interface
PT100
Earthing terminals
Current sensor connection
Binary inputs
Technical data
| ComPass A 2.0 | |
|---|---|
| Short-circuit indicator | ✅ |
| Earth fault indicator | ✅ |
| Earth fault location method | Earth short circuit, pulse detection |
| Measured values / display |
|
| I>> Response values Short-circuit current | 10 – 2,000 A, self-adjustment (200 – 2,000 A) |
| tI>> Response delay | 20 ms – 60 s |
| IE> Response values earth fault current | 10 – 1.000 A |
| tIE> Response delay | 40 ms – 60 s |
| ΔIE> Response values for pulse detection (clock stroke) | 1 – 200 A |
| Limit value monitoring | |
| I> Overcurrent | 5 – 1,500 A; tI> Response delay: 40 ms – 60 s |
| T< / T<< / T> / T>> Temperature | -40 °C to +85 °C |
| Measuring accuracy phase currents | ≤0.5 % / 0.5 A closed sensor type, ≤1 % / 0.5 A divisible sensor type |
| Display | LED status display (multicolor) OLED display (multilingual) |
| Remote signaling / communication | 4 potential-free, freely programmable relay contacts RS485 / Modbus interface |
| Parameterization | USB connection with ComPass Explorer software |
| Telecommunication contact | 4 permanent or wiping contacts, bistable, NC or NO contact Contact rating: 230 V AC/1 A/62.5 VA max.; 220 V DC/1 A/60 W max. |
| Binary inputs | 2, potential-free, 1 s < t < 5 s, freely programmable |
| 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, IP50 |
| Temperature range | -30 °C to +70 °C |
All important documents for the device
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