SENSORS

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The PD sensor is used to detect partial discharge signals in UHF (Ultra High Frequency) band.
There are three types of sensors: External PD Sensor, Internal PD Sensor, and Noise Sensor.

  • The External PD Sensor is installed on open-type insulating GIS spacer.
  • The Internal PD Sensor is installed in mounted window of GIS enclosure.
  • The Noise Sensor is a device installed externally at the substation GIS to detect various external electromagnetic signals such as corona, mobile phone, radar, switching surge.

Internal Sensor

Frequency Range 300~2,000 MHz
Output Power (5pC) Over -20 dBm
Impedance 50 Ω
Sensitivity Below 5pC
Connector N-Type
Material Aluminum, MC Nylon
Install Position GIS Enclosure

External Sensor

Frequency Range 300~2,000 MHz
Output Power (5pC) Over -20 dBm
Impedance 50 Ω
Sensitivity Below 5pC
Connector N-Type
Material Aluminum, Epoxy
Install Position GIS Spacer

Noise Sensor

Frequency Range 300~2,000 MHz
Impedance 50 Ω
Connector N-Type
Material PE
Install Position Near GIS

Drain Value Sensor

Frequency Range 300~2,000 MHz
Output Power (5pC) Over -20 dBm
Impedance 50 Ω
Sensitivity Below 5pC
Connector N-Type
Material Steel, MC Nylon
Install Position Transformer Drain Valve

Window Sensor

Frequency Range 300~2,000 MHz
Output Power (5pC) Over -20 dBm
Impedance 50 Ω
Sensitivity Below 5pC
Connector N-Type
Material Steel, MC Nylon
Install Position Transformer Enclosure