IKI-20B3
Short-circuit and earth-fault indication
3 relay outputs
Item no.: 2500973
Main functions Detection, display and remote signalling of short circuits in power... more
Product information "IKI-20B3"
Main functions
- Detection, display and remote signalling of short circuits in power distribution networksdetection
- indication and remote signalling of earth short-circuits with rigidly, low impedance or short-time low impedance grounded neutral point
- non-directional indication of earth faults in compensated or isolated networks
- Three relay output
Measurement functions and display
- reliable measured value processing by independent overcurrent-time characteristic (DMT measuring function)
- real current measurement
- self-explanatory LCD symbols
- additional bright LED flashing display
Universal setting possibility of the operating parameters
- response current and response time separately adjustable for short circuit and earth short circuit
- reset mode
- reset time
- relay function continuous or wiper contact
Self test
- Function test on site by means of test button or remotely controllable via auxiliary input
Operation in ring and radial network (without changeover)
- Differentiated display of first and second fault event in networks reclosers
Maintenance-free due to power supply via current transformers
- Version IKI-20B: Buffering of power supply via integrated lithium battery
Technical data
| Trip current I>> | 100 A, 200 A, 300 A, 400 A, 600 A, 800 A,1000 A, 2000 A |
| Trip time tI>> | 60 ms, 80 ms, 150 ms, 200 ms |
| Trip current IE> | 40 A, 80 A, 100 A, 150 A |
| Trip time tIE> | 60 ms, 80 ms, 150 ms, 200 ms |
| Reset | 2 h, 4 h, manuell / extern, automatisch |
| Inputs: | Remote reset via external dry contact |
| 4x input for current sensor | |
| Remote test via external dry contact | |
| Power supply: | Partly CT-powered from primary current > 1 A, Completely CT powered from primary current > 5 A |
| Housing: | |
| Dimensions | 96 x 48 x 80 mm (w x h x d) |
| Recommended panel cutout | 92 x 45 mm (w x h) |
| Environmental conditions: | |
| Operational temperature | Standard: -25 °C ... +55 °C, extended: -25 °C ... +75 °C |
| Storage temperature | -30 °C ... +70 °C |
| Degree of protection | IP 40 |
| Current transformers: |
|
| Input 1, 2, 3 | Cable-mounted CTs type IKI-LU Bushing-mounted CTs for specific switchgears |
| Input 4: | Balanced core CT 3*I0 |
Outputs: Potential free locking or latching contacts:
3 x Relay
- 1 x NO oder 1 x NC with shared C for phase selective reporting of faults at L1, L2 or L3
