ComPass B 2.0

Directional fault indicator with monitoring and control function

The ComPass B 2.0 is suitable for use in substations with a remote control connection of the electrical power distribution in a medium-voltage network. In addition to the short-circuit and earth fault function, ComPass B 2.0 supplies the collected measured values of current, voltage and power from the station for transmission to the control room.
The PT-100 sensor measures the temperature of the transformer or the transformer station. For all measured values limits can be defined, which can also be transmitted to the control room.

The voltage coupling/measurement is done via the capacitive VDIS* system and/or via resistive (ohmic) voltage sensors. With the simultaneous measurement, the voltage measurement of the VDIS system can be automatically calibrated with the resistive voltage measurement. Up to four ComPass B can be connected to one set of resistive voltage sensors.

Product features

  • Clear fault indication and reading on-site: 2 directional arrow LEDs (A, B) and high contrast OLED display
  • High-precision current and voltage measurement with 0.5 % accuracy
  • Monitoring of the variables voltage (V), current (I), load flow direction (A↑ or B↓ ), power factor (cos φ), power (P, Q, S), energy (E), temperature (T) and frequency (f)
  • Suitable for all types of networks/neutral point treatments
  • Earth fault detection with 6 different earth fault detection methods, also in combination
  • Voltage monitoring with connection to capacitive and resistive (ohmic) sensors in one indicator
  • Limit value monitoring and remote signaling: V, I, P, Q, T
  • ComPass Explorer software: Commissioning and parameterization via front USB port

OLED display for good readability

Mini-USB port for easy parameterization and commissioning

Rocker switch

Display of measured values and configuration via the display

Your added value

  • Immediate detection of fault direction
  • Immediate detection of limit violations
  • Measured values available on site nd for SCADA
  • Automatic self-calibration of the capacitive voltage inputs, optionally with temperature compensation

PT100 input

Reverse polarity protected plug-in terminals for quick and easy installation

Technical data

ComPass B 2.0
Short-circuit indicator
Earth fault indicator
Earth fault detection methodPermanent, earth short-circuit, transient, cos φ, sin φ, Pulse location
Measured values / indication
  • Phase currents I1, I2, I3, IE with phase angle
  • Phase-to-earth voltage V1, V2, V3, VNE and phase-to-conductor voltage V12, V23, V31, VNE with phase angle
  • Load flow direction A↑ or B↓
  • Power P, Q, S and cos φ (P1,2,3, Q1,2,3, S1,2,3, cos φ 1,2,3 via RS485)
  • Amount of active energy, separately for load flow direction A↑ or B↓; additionally per phase
  • Operating current, I1, I2, I3, IE , S, P, Q, V12, V23, V31, all average values adjustable (1 — 60 min), I1, I2, I3 max. 24 h / 7 days / 365 days , maximum demand indicator Imax. LR, V12max. LR, V23max. LR, V31max. LR, Smax. LR, Pmax. LR, Qmax. LR, Tmin LR, Tmax. LR (last reset)
  • Power frequency f
  • Temperature T
I>> short-circuit trip current10 – 2,000 A, self-adjustment (200 – 2,000 A) tI>> Response delay: 40 ms – 60 s
IES> / IES>> earth short-circuit
trip currentt
10 – 1,000 A tIES> / tIES>> Response delay: 40 ms – 60 s
IET> transient method1 – 500 A
IEP> active current cos φ1 – 200 A tIEP> / tIEQ> Response delay: 40 ms – 60 s
IEQ> reactive current sin φ1 – 200 A
VNE> permanent earth fault values1 – 100 % tVNE> Response delay: 40 ms – 60 s
Limit value monitoring 
I> overload current5 – 1,500 A tI> Response delay: 40 ms – 60 s
V> Overvoltage100 – 200 % tU> Response delay: 40 ms – 60 s
V< Undervoltage1 – 100 % tU< Response delay: 40 ms – 60 s
P> / P>> / +P> / -P> Active power1 – 30,000 kW tP> / tP>> / +tP> / -tP> Response delay: 40 ms – 60 s
Q> / Q>> / +Q> / -Q> Reactive power1 – 30,000 kW tQ> / tQ>> / +tQ> / -tQ> Response delay: 40 ms – 60 s
T< / T<< / T> / T>> Temperature-40 °C to +85 °C
Measuring accuracy phase currentsUp to 0.5 % / 0.5 A closed sensor type, 1 % / 0.5 A divisible sensor type
Measuring accuracy voltagesUp to 0.5 % in the range 80 – 120 %/Un (resistive)
IndicationLED error message and status displays (multicolor)
OLED display (trilingual)
Remote signal / communication
  • 4 potential-free, freely programmable relay contacts
  • RS485 / Modbus interface
Remote contact4 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 inputs2, potential-free, 1 s < t < 5 s, freely programmable
Reset
  • Via rocker switch
  • Remote reset
  • Automatic time reset: 1 min – 24 h
  • Via RS485/Modbus interface
  • Power recovery
  • Voltage recovery
  • Auxiliary voltage recovery
  • ComPass Explorer Software
Power supply 
External auxiliary supply24 V – 230 V AC / DC (±10 %)
Internal power supplyLong-life lithium cell, >1,000 h total flashing time of the LED,
>1,000 display activations
HousingPolycarbonate, IP50
Temperature range-30 °C to +70 °C

All important documents for the device

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PERFECT MATCH

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Equipment set

(Combination with summation current sensor possible: 3+1 or 2+1)

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