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ComPass B 2.0

Fault direction indicator with monitoring

The ComPass B 2.0 is particularly suitable for use in central substations in the medium-voltage grid that have a telecontrol connection. In addition to the short-circuit and earth fault functions, the ComPass B 2.0 collects precise measured values for current, voltage and power from the station and makes them available for transmission to the control room. A PT-100 sensor can also be used to monitor the transformer or station temperature, for example. Limit values can also be defined for all measured values, which can also be made available to the control room as alarms. Voltage coupling/measurement takes place capacitively via the VDS system and/or via resistive (ohmic) voltage sensors. With simultaneous measurement, the voltage measurement via the VDS system can be automatically calibrated with the resistive voltage measurement. Up to four ComPass can be connected to a set of resistive voltage sensors.

Product features

  • Clear error display and reading option on site:
    2 directional arrow LEDs (A, B) and high-contrast OLED display
  • Precise current and voltage measurement with 0.5 % accuracy
  • Monitoring of the variables voltage (U), 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 mesh types/star point treatments
  • Earth fault detection with six different earth fault location methods, can also be combined
  • Coupling to capacitive and resistive (ohmic) sensors
  • Limit value monitoring and remote signaling: U, 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

Indication of measured values and configuration via the display

Your added value

  • Immediate fault direction detection
  • Immediate detection of limit violations
  • Availability of measured values in the control room and on site
  • Automatic self-calibration of the capacitive voltage inputs, optionally with temperature compensation

PT100 input

Reversible plug-in terminals for quick and easy installation

Technical data

ComPass B 2.0
Short-circuit indicator
Earth fault indicator
Earth fault location methodContinuous earth fault, earth short circuit, earth fault wiper, cos φ, sin φ, pulse location
Measured values / display
  • Conductor currents I1, I2, I3, IE with phase angle
  • Phase-to-earth voltage U1, U2, U3, UNE and phase-to-conductor voltage U12, U23, U31, UNE 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)
  • Active energy quantity, separately for load flow direction A↑ or B↓; additionally per phase
  • Operating current, I 1,2,3, S, P, Q, U12, U23, U31, Ø value adjustable (1 – 60 min), I max. 24 h / 7 days / 365 days,
  • Slave pointer function I max. LR , U12 max LR, U23 max LR, U31 max LR, Smax LR, Pmax LR, Qmax LR, Tmin LR, Tmax LR (LR = since last reset)
  • Mains frequency f
  • Temperature T
I>> Response values Short-circuit current10 – 2,000 A, self-adjustment (200 – 2,000 A) tI>> Response delay: 40 ms – 60 s
IES> / IES>> Response values earth fault current10 – 1,000 A tIES> / tIES>> Response delay: 40 ms – 60 s
IET> Response values earth fault wiper method1 – 500 A
IEP> Response values active residual current cos φ / IEQ> Response values reactive current sin φ1 – 200 A tIEP> / tIEQ> Response delay: 40 ms – 60 s
ΔIE> Response values for pulse detection (clock stroke)1 – 200 A
UNE> Response values Permanent earth fault1 – 100 % tUNE> Response delay: 40 ms – 60 s
Limit value monitoring
I> Overcurrent5 – 1,500 A tI> Response delay: 40 ms – 60 s
U> Overvoltage100 – 200 % tU> Response delay: 40 ms – 60 s
U< 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)
DisplayLED error message and status displays (multicolor)
OLED display (trilingual)
Remote notification / communication
  • 4 potential-free, freely programmable relay contacts
  • RS485 / Modbus interface
Telecommunication 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
  • Current restoration
  • Voltage restoration
  • Auxiliary voltage recovery
  • ComPass Explorer Software
Supply
External auxiliary voltage24 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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Equipment set

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


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