Current Transformer (Ct) Ground; Voltage Measurement Fuses - Deif SGC 120 User Manual

Single genset controller

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Split phase application L1/L2 (3 wires)

Split phase application L1/L3 (3 wires)

2.5.5

Current transformer (CT) ground

Use one of these methods for the CT ground (S2) connections:

1. The S2 terminals are not grounded. The controller detects the current accurately.

2. The S2 terminals are grounded at the GND terminal (terminal 1).

3. The S2 terminals are grounded but not at the GND terminal. This means that the battery ground (GND terminal) and the

CT ground are not the same. The maximum allowable offset between the two ground connections is ±0.5 V.

2.5.6

If the wires/cables must be protected with fuses, use max. 2 A time-delay fuses, dependent on the wires/cables to be

protected.

User manual 4189341340A EN

Page 16 of 76

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