HVF-220 High-Voltage Line Fault Indicator

HVF-220 High-Voltage Line Fault Indicator

Application Fault passage indication on selected high-voltage overhead line sections
Line voltage class 110–220 kV
Installation type Conductor-mounted sensor head with radio status transfer to receiver
Fault current detection 1–20 kA programmable short-circuit event level
Minimum detectable transient duration 20 ms typical
Indication Local service LED plus remote alarm output; remote indication is primary
Communication Long-range radio to pole or substation receiver
Reset methods Timed reset, remote command, voltage restoration
Power supply High-capacity lithium cell with low-power standby mode
Expected service interval Up to 8 years depending on event rate and communication schedule
Protection class IP67/IP68-class outdoor housing, UV-resistant; corrosion-resistant option for coastal areas
Operating temperature −45 °C…+75 °C
Category:

Description

Remote fault passage indication for selected high-voltage overhead line sections

The HVF-220 is a high-voltage overhead line fault indicator concept for long spans and remote line sections where visual inspection can be time-consuming. It provides local service indication and remote fault passage indication for short-circuit events.

The device is not a replacement for line protection relays, distance protection, pilot protection, circuit breakers, or reclosers. Its purpose is to help operators confirm the suspected faulted section and prioritize inspection after protection operation.

Typical applications

  • Fault passage indication for 110–220 kV overhead lines
  • Remote line sections and difficult terrain
  • Receiver interface for control-room alarms
  • Rugged enclosure for harsh outdoor environments
Engineering note: Trip thresholds, reset logic, communication architecture, insulation coordination, EMC performance and installation method must be validated against the target feeder, grounding method, protection settings and applicable utility standards before final specification.

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