IKI-55 T

Networkable Feeder Control Units for Distribution Substations, temperature compensated sensor input

Item number: 2502400_H103

The IKI-55 Feeder Control Unit can be used in load switchgear for directional fault detection,... more

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Product information "IKI-55 T"

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.

In addition, sensors with integrated temperature sensor for temperature compensation of the measured values can be connected to the IKI-55 T, such as the SIBushing (Siemens). The maximum measurement deviation with temperature compensation is equal or less than 1 % for voltage and current measurement.

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 with export as Comtrade file

Early fault detection

Fetection of transient faults (Intermittent ground 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
Cross calibration (With additional adapter)
Phase comparison function for voltages (With additional adapter)

Comprehensive control and monitoring functions

Control of motor controllers for switching load and ground switches
Free programmable logic functions
Automatic Transfer Switch (ATS)
Limit value monitoring

Simple operation of the unit

Additional LEDs to indicate the fault direction
Self-explanatory operation via direction keys

Extended safety features

User roles safety concept, password protected
Remote firmware update via REST interface (deactivable)
USB interface deactivable

Communication protocols

IEC 60870-5-104 for communication with control center

MQTT, REST for communication with databases or management systems

Modbus RTU (Master)

PT100 input for temperature compensation of smart sensors

E.g. for Siemens SIBushing sensors

Maximum measurement deviation with temperature compensation is equal or less than 1 % for voltage and current measurement.

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Comparison of products

	IKI-55 T 2502400_H103	IKI-55 2502400_H003
Level of digitalisation	2	2
Directional short-circuit detection I>>	✓	✓
Directional earth short-circuit detection Ie>>	✓	✓
Earth fault transient detection	✓	✓
Pulsation detection	✓	✓
Directional static earth fault detection Ie>;	✓	✓
Slave test	✓	✓
Modbus-RTU	✓	✓
Modbus RTU Master	✓	✓
Modbus-RTU Slave	✓	✓
IEC 60870-5-104 Slave	✓	✓
MQTT	✓	✓
REST API	✓	✓
LAN connection	✓	✓
Encryption of communication (LAN)	TLS	TLS
CT-supplied	-	-
Auxiliary power supply	24 VDC/AC +/-20%	24 VDC/AC +/-20%
USB interface	Mini-USB	Mini-USB
PT100 input for temperature compensation of sensors	✓	-
Digital Inputs	6	6
Digital Outputs	6	6
Digital IOs configurable	Yes	Yes
Switching functions feeder control unit	Switching of up to two load switches 1.5-pole switching	Switching of up to two load switches 1.5-pole switching
Digital outputs for 1.5 pole switching	2	2
Voltage inputs	1 (With additional adapter 2: 2x LRM/CAPDIS or 1x LRM/CADPIS + 1x precision 3.25V)	1 (With additional adapter 2: 2x LRM/CAPDIS or 1x LRM/CADPIS + 1x precision 3.25V)
Voltage measurement	✓	✓
Precision voltage measurement	Yes	Yes
Current measurement	✓	✓
Logic functions programmable	A total of 32 logic rules can be programmed.	A total of 32 logic rules can be programmed.
Balanced core CT optional	-	-
Stromwandlerliste für Vergleichstabelle	IKI-LUM_d92 Split-Core Transducer with cable tie (set) \| Ø 92mm (2512106_H001) IKI-LUM_d92 Split-Core Transducer for C-Cone-Bushings (set) \| Ø 92mm (2512106_H003) IKI-LUM_d92 Split-Core Transducer for SIEMENS-Bushings (set) \| Ø 92mm (2512106_H004)	IKI-LUM_d92 Split-Core Transducer with cable tie (set) \| Ø 92mm (2512106_H001) IKI-LUM_d92 Split-Core Transducer for C-Cone-Bushings (set) \| Ø 92mm (2512106_H003) IKI-LUM_d92 Split-Core Transducer for SIEMENS-Bushings (set) \| Ø 92mm (2512106_H004)
TE trend monitoring	In conjunction with CAPDIS-S2_55 (R5) Indication on the display, transmission via Modbus-RTU Partial discharge trend via frequency distribution; integration over 24 h, trend over 72 h	In conjunction with CAPDIS-S2_55 (R5) Indication on the display, transmission via Modbus-RTU Partial discharge trend via frequency distribution; integration over 24 h, trend over 72 h

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Device data
Article number	2502400_H103
Quantity unit	Piece
Product designation	Grid Controller IKI-55 \| Networkable Feeder Control Unit \| For SIBushing
Number of feeders	1
Firmware	1.3.0
Parameterization software	KriesConfig
Configuration	Via HMI and display (limited), Via software Kries-Config (download at kries.com)
Operating elements and display
Front display	LC-Display and LEDs
Direction keys	1 - 4 for navigation in menu
Red LED (1)	Error event detected
Yellow LED (2)	Device warnings
Dreen LED (3)	Status message device state
Yellow LED (4)	Fault detected in the direction of the busbar
Red LED (5)	Error event detected in the direction of the cable
Dimensions and installation instructions
Case height x width x depth	48 x 96 x 110 mm
Cutout height x width	45 x 92 mm
Norm cutout dimensions	DIN IEC 61554:2002-08
Installation type	Panel mounting
Operating conditions
Operating temperature	-40°C ... 70°C
Storage temperature	-40°C ... 80°C
Protection class front side	IP54
Protection class	IP40 / Front IP54
System frequency	50 Hz / 60 Hz (selectable)
Fault detection and failure forecast
Fault detection	Individually selectable, any combinations possible
Star point types	Short-term low-ohmic terminated neutral, Low-ohmic terminated neutral, Inductive terminated neutral, Isolated neutral
Short circuit detection I>>	✓
Directional short-circuit detection I>>	✓
Threshold current short-circuit detection I>>	50 A – 1,000 A
Threshold time short-circuit detection I>>	40 ms – 5 s
Earth short-circuit detection Ie>>	✓
Directional earth short-circuit detection Ie>>	✓
Threshold current earth short-circuit detection Ie>>	10 A – 1,000 A
Threshold time earth short-circuit detection Ie>>	40 ms – 5 s
Directional static earth fault detection Ie>;	✓
Threshold current static earth fault detection Ie>	2 A – 30 A
Threshold time static earth fault detection Ie>	200 ms – 2 s
Directional transient earth fault detection Ie>	✓
Threshold current transient earth fault detection 3I0	1 A – 1,000 A
Threshold voltage transient earth fault detection 3U0	0.1 kV – 100 kV
Earth fault detection via pulse locating	✓
Pulse length of pulse locating	symmetrical / asymmetrical
Transient fault detection IIe>	✓
TE trend monitoring	In conjunction with CAPDIS-S2_55 (R5) Indication on the display, transmission via Modbus-RTU Partial discharge trend via frequency distribution; integration over 24 h, trend over 72 h
Fault reset	Auto, Manually on the device, After time (1 h ... 8 h, configurable)
Reset setting	Time: 1 - 1 h; manual, auto
Event log	20 events
Fault recorder	✓
Fault record - formats	Comtrade
Fault record - number	20
Fault record - recording duration	2,5 s at 50 Hz \| 2,09 s at 60 Hz
Fault record - Frequency	6,4 kHz at 50 Hz \| 7,68kHz at 60 Hz
Fault record - Pretrigger	0,31 s at 50 Hz \| 0,258 s at 60 Hz
Earth fault transient detection	✓
Directional earth short-circuit detection	✓
Interfaces and transmission protocols
USB interface	Mini-USB
Transmission protocols	MQTT, REST, IEC 60870-5-104, Modbus-RTU
Modbus-RTU	✓
Modbus RTU Master	✓
Modbus-RTU Slave	✓
Modbus transmission rates [kBd]	9600, 19200, 38400, 57600, 115200
MQTT	✓
REST API	✓
IEC 60870-5-104 Slave	✓
Encryption of communication (LAN)	TLS
LAN connection	✓
Slave test	✓
Digital Inputs	6
Digital inputs - connections	Push-In, Connection of solid and stranded conductors: 0.08 to 0.5 mm² \| Connection of stranded conductors with ferrule: 0.25 to 0.34 mm²
Digital inputs - switching thresholds	ON > 19 VDC / OFF < 10 VDC
Digital inputs - voltage ranges	24 DC to 60 VDC
Digital inputs - current consumption	Max. 6 mA
Digital Outputs	6
Digital outputs for 1.5 pole switching	2
Digital outputs - connections	Push-In, Connection of solid and stranded conductors: 0.08 to 0.5 mm² \| Connection of stranded conductors with ferrule: 0.25 to 0.34 mm²
Digital outputs - variants	Floating
Digital outputs - switching capacity	1 A at 30 VDC
Digital outputs - dielectric strength	Max. 80V
Digital IOs configurable	Yes
Switching functions feeder control unit	Switching of up to two load switches 1.5-pole switching
Voltage input Input impedance	2 MOhm, 50 pF
Voltage input Input range	0,4 V – 4,1 V
Voltage input measurement accuracy	1%
Voltage input transformation ratio	10000:1 (settable)
Voltage input standard	IEC 61869-11
Current input Version	Rogowski current sensor
Current input Input impedance	10 MOhm, 50 pF
Current input Measuring range	0,1 A up to 2000 A
Current input Measuring accuracy	1%, +- 0.5 A
Current input Ratio	50 A / 22,5 mV (50Hz) (settable)
Current input standard	IEC 61869-10
PT100 input for temperature compensation of sensors	✓
Voltage inputs	1 (With additional adapter 2: 2x LRM/CAPDIS or 1x LRM/CADPIS + 1x precision 3.25V)
Measurement values and functions
Voltage measurement	✓
Phase-to-ground voltages	✓
Phase to phase voltages	✓
Precision voltage measurement	Yes
Current measurement	✓
Active power	✓
Reactive power	✓
Apparent power	✓
Rotary field detection	✓
Frequency measurement	✓
Limit value monitoring	Parameterizable
Logic functions programmable	A total of 32 logic rules can be programmed.
Power supply
Auxiliary power supply	24 VDC/AC +/-20%
Power input - power consumption	0.5 A
Power supply input - connections	Connection of solid and stranded conductors: 0.2 to 2.5 mm² / Connection of stranded conductors with ferrule: 0.25 to 1.5 mm² / Connection of stranded conductors with ferrule without plastic collar: up to 2.5 mm²
CT-supplied	-

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Datasheet
Manual (Registered users)