Product Introduction
MOEORW-WUHF is a dedicated sensor developed for partial discharge monitoring of Gas Insulated Switchgear (GIS). When internal insulation defects in GIS cause partial discharge, they radiate ultra-high frequency electromagnetic waves above 300MHz, which can propagate outward through the insulation gaps of disc insulators.
This sensor uses an optimized butterfly antenna structure to efficiently capture UHF discharge signals while suppressing common 50Hz power frequency interference and corona discharge interference. The housing is made of die-cast aluminum alloy with anti-corrosion treatment, achieving IP67 protection level for long-term outdoor installation. It outputs a 50Ω standard impedance signal, which can be directly connected to backend equipment for online monitoring and inspection diagnosis of GIS equipment.
Product Parameter (specification)
|
Parameter |
Value |
|
Frequency Range |
300MHz-1500MHz |
|
Antenna Type |
Butterfly |
|
Antenna Gain |
≥+5dBi |
|
Impedance |
50Ω |
|
Equivalent Height |
≥8mm |
|
Operating Temperature |
-40℃~+85℃ |
|
Protection Level |
IP67 |
|
Housing Material |
Aluminum Alloy |
|
Interface |
N-type Connector |
Product Features and Applications
- 300MHz-1500MHz UHF detection, effectively avoids low-frequency electromagnetic interference
- Butterfly antenna design, ≥+5dBi gain, ≥8mm equivalent height, high sensitivity
- Integrated metal housing, IP67 protection, suitable for harsh outdoor environments
- Non-intrusive installation, receives signals through GIS disc insulators
- Outputs raw analog signals, compatible with oscilloscopes and PD analyzers
Prodection details
- GIS (Gas Insulated Switchgear) partial discharge online monitoring
- 110kV/220kV substation GIS equipment inspection
- High-voltage circuit breaker insulation status detection
- Transformer bushing partial discharge measurement
- Power transmission system GIS fault diagnosis
Company Qualifications
FAQ
Q1: Where should the UHF sensor be installed on GIS equipment?
A: It should be installed near disc insulators, hand holes or inspection windows, where electromagnetic waves can easily radiate outward.
Q2: How does it avoid on-site electromagnetic interference?
A: The 300MHz-1500MHz detection frequency band completely avoids 50Hz power frequency interference and low-frequency corona discharge interference.
Q3: What backend equipment is compatible with this sensor?
A: It is compatible with all standard PD analyzers, oscilloscopes and data acquisition systems with 50Ω input impedance.
Q4: Can it be used outdoors for a long time?
A: Yes. The IP67 protection grade and anti-corrosion aluminum alloy housing ensure stable operation in rain, snow and high-temperature environments.
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