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Kries IKI-URD Fault Circuit Indicators

Kries IKI-URD Fault Circuit Indicators-CAT-IKI-URD
Our TE Kries IKI-URD fault circuit indicator provides accurate fault detection and indication for Underground Residential Networks (URD). Flexible settings help reduce outage duration and simplify grid operation.
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Product Features

  • Fault Detection : Earth Fault Static | Earth Short-Circuit | Short-Circuit

  • Fault Reset Option : After 2 hour | After 4 hour | Auto | External Potential-Free Normally Open Contact | Manual

  • Measurement Parameters : Current

  • Control Type : Push Button

  • Supply Voltage (V): 3.6

Available from

LADD Inc
Overview
Retrofit your URD grid to quickly locate faults and help minimize unplanned downtime

TE Connectivity (TE) Kries IKI-URD helps utilities locate faults faster in underground residential distribution networks by narrowing the area crews need to inspect. Built-in fault direction indication helps guide crews to the affected section, reducing search time and letting them focus faster on troubleshooting and restoration. 
A street-visible LED strobe makes the fault indication easy to spot when crews arrive on site, turning an underground issue into a clear above-ground visual signal. This helps crews focus their inspection without searching a wider area. 
Designed for easy retrofit into existing networks, IKI-URD comes preassembled with power-harvesting CT sensors and can be installed while the transformer remains online, helping utilities add greater fault visibility with minimal disruption.

Key Features

  • Configurable fault detection and indication
  • Street-visible LED strobe for clear, easy-to-spot fault indication from above ground
  • Battery-buffered operation with two power-harvesting CT sensors included in the preassembled kit
  • Fast retrofit installation with fasteners or magnetic feet and no external power supply required
  • Installation while the transformer is online, helping minimize disruption during deployment 

Applications

  1. Detecting Faults in Underground Residential Distribution (URD) Networks (IEEE) (English)

Learn how underground fault indicators help utilities quickly locate faults in residential areas through a visual indication that maintenance patrols can spot from the street, reducing downtime and improving service continuity.

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Smart grid Energy Solutions

Application

Smart Grid Solutions

Predict earlier. Detect Faster. Re-Energize Sooner.​
Learn how TE is engineering the latest solutions to increase grid reliability and reduce unplanned power interruptions.
FAQ

Question 1: Can the TE Connectivity (TE) Kries IKI-URD be installed in existing underground distribution networks?

Answer: Yes. The TE Kries IKI-URD is designed for retrofit applications and can be deployed in existing URD networks without replacing the entire network.

 

Question 2: What power source does the IKI-URD require?

Answer: The device is primarily powered by connected split-core current transformers when operating current is present and includes an integrated lithium battery for backup operation.

 

Question 3: Can IKI-URD be connected to remote monitoring or SCADA systems?

Answer: The device includes relay outputs for remote signaling and supports remote testing and remote reset functions through dry-contact inputs.

 

Question 4: How can operators verify that the device is functioning correctly?

Answer: The IKI-URD supports local display testing, function testing, and remote testing, allowing users to verify device operation and relay functionality.

 

Question 5: What reset options are available after a fault indication?

Answer: The device can be configured for automatic reset, timed reset (2-hour or 4-hour), or manual reset using either the local reset button or a remote reset input.

 

Question 6: Does the IKI-URD support external visual indication?

Answer: Yes. In addition to the integrated LED and LCD, the device can connect to an external LED blinker for additional fault-indication visibility.

 

Question 7: Can fault detection settings be adjusted for different network requirements?

Answer: Yes. The device offers selectable overcurrent pickup thresholds and configurable operating parameters through DIP-switch settings.

 

Question 8: What accessories are available with the IKI-URD?

Answer: Accessories include split-core current transformers, connecting cables, mounting housings, and external LED blinkers.

Features

Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Control Type  Push Button

Configuration Features

  • Relay Output Configuration  Wiper

Electrical Characteristics

  • Power Supply  Battery | Sensors

  • Supply Voltage (V) 3.6

  • Step Voltage Monitoring  No

Dimensions

  • Case Width  96 mm [ 3.78 in ]

  • Case Depth  80 mm [ 3.15 in ]

  • Case Height  48 mm [ 1.89 in ]

Usage Conditions

  • Storage Temperature Range  -30 – 75 °C [ -22 – 167 °F ]

  • Operating Temperature Range  -25 – 75 °C [ -13 – 167 °F ]

Operation/Application

  • Measurement Parameters  Current

Industry Standards

  • IP Rating  IP40

Other

  • Battery Type  Lithium

  • Network Neutral Earthing  Inductive Terminated Neutral | Isolated Neutral | Low Ohmic Terminated Neutral | Short Term Low Ohmic Terminated Neutral

  • Fault Detection  Earth Fault Static | Earth Short-Circuit | Short-Circuit

  • Fault Reset Option  After 2 hour | After 4 hour | Auto | External Potential-Free Normally Open Contact | Manual

Related Materials

Datasheets & Catalog Pages