Temperature Monitoring of Power Cable Junctions in an Underground Cable Trench

Application

Temperature monitoring of power cable junctions in an underground cable trench

• Narrow underground cable trench with high voltage cables (HT (6.6 KVA) and LT (400 V))
• High temperature at the junction due to high voltage power.
• Currently no temperature measurement system in place.

Challenges

• Threat of fires due to high temperature cable junctions.
• Customer wants to add temperature measurement points for plant safety.
• High voltage cables generate high levels of electric noise.

Solutions

• Wireless temperature measurement
  gateway x1, transmitter (YTA) x1
  repeater x1: between gateway and YTA.
• High quality wireless communication was confirmed.
  With repeater at center: The packet error rate was 0%.

Benefits

• Eliminates wiring costs.
• Robust communication where other wireless solutions failed.