IKI-55

Properties

The IKI-55 Feeder Control Unit can be used in load switchgear for directional fault detection, load flow measurement, and control of load and ground switches. Likewise, a number of automation and monitoring functions are available with the IKI-55.

The IKI-55 is network-capable in its basic version and can communicate with the control station and other remote stations via various communication protocols. It can also be used as a Modbus master. The IKI-55 M is a Modbus-only variant.

.The IKI-55 is designed for the connection of small-signal current transformers according to IEC 61869-10 as well as small-signal voltage transformers according to IEC 61869-11. In conjunction with a sensor adapter, conventional conversion transformers for current measurement as well as capacitive and precision dividers can be connected.

Fault detection

• directional short-circuit detection
• directional ground short-circuit detection
• directional ground fault detection with static and transient fault detection
• ground fault detection via pulse locating
• suitable for all neutral point treatments
• no summing transformer required
• fault recording

early fault detection

• detection of transient faults
• in conjunction with a CAPDIS- S2_55 (R5): Detection of partial discharges and their frequency and trend

Load flow measurement

• Voltages, currents, powers, frequencies, cos phi
• Momentary and average values

Comprehensive control and monitoring functions

• Control of motor controllers for switching load and ground switches
• Free programmable logic functions
• Limit value monitoring

Simple operation of the unit

• additional LEDs to indicate the fault direction
• self-explanatory operation via direction keys