IK-20
Directional fault indicator for overhead networks with NS-20 and SS-30 sensors.
- Fault direction detection and transient analysis
Fault Indicator IK-40
Modular fault indicator for local and remote supervision of earth and short-circuit faults in MV cable and overhead networks.
The IK-40 fault indicator has up to four independent fault indication modules. It connects to LPCT or SS-10/SS-20 current sensors and LPVT voltage sensors, samples currents and voltages, and runs algorithms for local and remote fault detection, indication and recording.
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Modular design
Up to 4 fault indication modules enable use across multiple feeder bays.
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Current and voltage sensors
Supports LPCT, SS-10 and SS-20 current sensors as well as LPVT voltage sensors.
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Directional detection
Algorithms cover ANSI 50/51, 50N/51N, 67/67N, 27, 47, 59/59N, 21YN and 32N.
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Fault record registration
Combined with UST-10Gc, it supports COMTRADE fault record registration.
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USB and remote parameterization
Settings can be configured locally via USB, remotely, or with IK Dialog software.
- Number of IK modules
- up to 4
- Current inputs per module
- 3(4), 2x SS-10 and 1x SS-20 or LPCT
- Voltage inputs per module
- 3(4), 3 x LPVT, 3.25 sqrt(3)
- Phase and earth-fault currents
- I>>, I>, Iphi>: 50...800 A; Io>>, Io>, Iophi>: 2...200 A; times 0.04...60 s
- Directional and voltage functions
- ANSI 32N, 21YN, 21FL, 27, 47, 59 and 59N
- MV network types
- isolated, resistance-earthed, Petersen-coil earthed and solidly earthed networks
- 2nd harmonic detection
- inrush current
- Fault signalling
- 2 multi-colour LEDs Io and I>> per module plus 1 multi-colour comm LED
- Measurement
- 4I, 4U, P, Q, S, f, cos phi per module
- Communications
- RS485 or optional fibre optic, USB; MODBUS RTU or optional IEC 60870-5-101
- Power supply
- 48 V DC +/-15%, 8 VA
- Reset
- voltage reset, timed reset 2...96 h, manual push-button reset; reset active or inactive
- Dimensions and mounting
- 94 x 94 x 90 mm, mounting on 35 mm DIN rail
- Temperature range
- -25 to +55 °C
Modules and inputs
Fault indication functions
Signalling and communication
General
- HRN EN 60255-151
- ANSI 50/51, 50N/51N, 67, 67N, 32N, 21YN, 21FL, 27, 47, 59, 59N
- MODBUS RTU
- IEC 60870-5-101 as option
- HRN EN 60068-2-1 and HRN EN 60068-2-2
- HRN EN 60255-27
Related products
IK-10
Fault indicator for up to four feeders in cable substations.
- SS-10/SS-20 sensors and SL-10 signalling