Instructions for Use
ComPass B 4023841-001
Intended Use1.
The ComPass B is used in medium-voltage distribution networks and combines the functions of a
directional short-circuit and directional earth fault indicator.
It has been developed and designed
to detect short-circuits and earth faults•
to indicate and remotely signal the fault direction (A or B)•
to measure, indicate and remotely signal load current, voltage, power, cos φ and frequency •
of medium-voltage networks
to monitor the load ow direction (A or B)•
The ComPass B is designed for operation in radial, ring and mesh networks.
It can be used in solidly earthed, low-impedance, resonant earthed or isolated neutral systems.
Description of the device2.
Scope of delivery2.1.
A complete set of ComPass B includes:
1 display unit in a plug-in housing for panel mount•
3 single-phase current transformers, •
alternatively: 2 single-phase current transformers and 1 summation current transformer
Integrated voltage detecting system WEGA 1.2 C or WEGA 2.2 C + 1 set of connection •
leads
alternatively: 1 set of HR-interface cable
alternatively: 3 capacitive insulators + 1 set of connection leads.
Display Unit2.2.
Plug-in housing for panel-mount: 96 x 48 x 96 mm (W x H x D), recommended cut-out di-•
mensions according to DIN: 92
+0.8
x 45
+0.6
mm
Voltage supply: 24–230 V AC/DC ±10 %•
Current transformers (CT)2.3.
Single-phase, split core cable-type current transformer for cable/bushing diameters ranging •
from 15 to 55 mm (Order No.: 49-6024-xxx).
Split core cable-type current transformerFigure 1:
Closed single-phase bushing-type current transformer for cable diameter of •
79.5 mm (Order No.: 49-6025-xxx).
Closed bushing-type current transformerFigure 2:
4
Dipl.-Ing. H. Horstmann GmbH
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