IK-40
Modular fault indicator for up to four feeders and directional detection in MV networks.
- LPCT/LPVT sensors and advanced ANSI functions
Fault Indicator IK-20
Directional fault indicator for detection, indication and recording of earth and short-circuit faults in MV overhead networks.
The IK-20 fault indicator uses NS-20 voltage sensors and SS-30 current sensors for local and remote fault detection in MV overhead networks. The device indicates fault type and direction on LCD and LED displays and can send data to the control centre via GSM/GPRS, radio modem or DT-20RN remote terminal.
-
Short-circuit and earth-fault detection
Supports ANSI functions 50, 51, 67, 50N, 51N and 67N, plus transient analysis for directional earth-fault detection.
-
Non-conventional sensors
Works with NS-20 capacitive voltage sensors and SS-30 inductive current sensors mounted on the disconnector.
-
Local and remote signalling
Fault type and direction are indicated locally on LCD/LED displays and relay outputs and remotely through the communication system.
-
Automatic sectioning
Combined with UST-10Gc, it enables automatic network sectioning and selective fault isolation during the dead time.
-
Simple parameterization
Pickup currents, reset mode and time, and operating times are configured via LCD and keypad or by notebook computer.
- Current inputs
- 3 inputs, SS-30 current sensors
- Voltage inputs
- 6 inputs, NS-20 capacitive sensors
- Measurement and digital inputs
- 2 measurement inputs M1/M2 and 4 digital inputs as options
- Phase currents
- I>>, I>, Iphi>: 50...800 A, 1 A step; times 0.04...60 s
- Earth fault
- Io>>, Io>, Iophi>: 2...200 A, 0.1 A step; times 0.04...60 s
- Transient earth fault
- 2...200 A, 0.1 A step; analysis within 120 ms
- Fault signalling
- 4 two-colour LEDs, illuminated 2x16 LCD and 4 programmable relay outputs
- Communication
- RS485 or fibre-optic communication; MODBUS RTU or IEC 60870-5-101
- Power supply
- 230 V AC +10%/-20% or 24, 48, 110, 220 V DC +45%/-20%, max. 5 VA
- Reset
- voltage reset, timed reset 2...96 h or manual push-button reset
- Dimensions
- 96 x 96 x 90 mm
- Temperature range
- -25 to +55 °C
Sensor inputs
Fault indication functions
Signalling and communication
General
- ANSI 50, 51, 67, 50N, 51N, 67N
- MODBUS RTU or IEC 60870-5-101
- EN 60255-5
- EN 61000-6-2 and EN 61000-6-4
Related products
IK-10
Fault indicator for multiple feeders in cable substations.
- Up to 4 feeders with local and remote indication