Product Introduction
MOEORW-WTEV-AA is a dual-channel partial discharge sensor that integrates Transient Earth Voltage detection and Airborne Ultrasonic detection technology, designed for status monitoring of metal-clad switchgear.
The TEV channel identifies internal insulation breakdown and poor contact defects by detecting transient voltage signals on the cabinet surface; the AA channel detects surface discharge of insulators, bushings and busbars by capturing ultrasonic signals generated by discharge. The two detection technologies complement each other to effectively distinguish real PD from on-site interference, greatly improving the accuracy of fault judgment. The magnetic adsorption installation method does not damage the equipment structure and allows quick deployment.
Product Parameter (specification)
|
Detection Type |
Parameter |
Value |
|
TEV |
Bandwidth |
3MHz-100MHz |
|
AA |
Center Frequency |
40KHz |
|
Dynamic Range |
60dB |
|
|
Type |
Square Magnetic Mount |
|
|
Housing Material |
Metal |
|
|
Interface |
BNC (SMA customizable) |
|
|
Operating Temperature |
-40℃~+85℃ |
|
|
Installation |
Magnetic (Equipment Inner Surface) |
Product Features
- TEV+AA dual-channel synchronous detection, complementary verification improves diagnosis accuracy
- Square magnetic design, stable installation on metal-clad switchgear inner surfaces
- Integrated design reduces sensor quantity, lowers system complexity and maintenance cost
- Detects both internal metallic discharge and surface insulation discharge
- Customizable interfaces, compatible with mainstream PD monitoring hosts
Prodection details
- Metal-clad switchgear dual-channel online monitoring
- Substation switchgear regular inspection
- Box-type substation insulation status detection
- Industrial automation power equipment monitoring
- Data center power distribution system maintenance
Company Qualifications
FAQ
Q1: What is the advantage of dual-channel detection compared to single-channel?
A: TEV detects internal discharge and AA detects surface discharge, complementary verification reduces false alarm rate by more than 40%.
Q2: Can the signal interface be customized?
A: Yes. Standard BNC interface is provided, and SMA interface can be customized according to customer requirements.
Q3: What is the maximum detection distance of the AA channel?
A: The effective detection distance is 0-5 meters, which can cover the entire internal space of standard switchgear.
Q4: Is calibration required before use?
A: The sensor has been factory calibrated and can be used directly after installation. Annual calibration is recommended for long-term use.
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