Product Introduction
MOEORW-WTEV-AA
The dual‑mode PD sensor combines TEV transient earth voltage and AA ultrasonic sensing, specially designed for metal‑clad switchgear insulation monitoring.
‑ TEV detects high‑frequency pulses for hidden internal discharge and poor contact faults
‑ AA ultrasonic catches surface discharge on insulators and busbars
Two‑channel cross‑verification suppresses on‑site background noise for reliable insulation assessment. Magnetic attachment enables fast on‑site setup without equipment alteration.
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
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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