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MOEORW-WP70 TEV+AA Magnetic Daisy-Chain PD Sensor Send email to us

Applications

Product Overview

MOEORW-WP70 is an intelligent integrated partial discharge sensor designed specifically for medium-voltage switchgear and ring main units. It adopts dual detection technology of TEV (Transient Earth Voltage) and AA (Airborne Ultrasonic), which can simultaneously capture voltage pulses on the cabinet surface and acoustic signals generated by internal insulation discharge, accurately identifying early defects such as insulation aging and poor contact.

The modular daisy-chain architecture allows multiple devices to share a single power and data line. Combined with the strong magnetic adsorption design, on-site personnel can complete live installation and debugging without professional tools. The built-in signal conditioning and digital processing unit directly outputs standardized Modbus 485 data, which can be seamlessly connected to various power monitoring systems, providing a reliable basis for equipment status assessment and preventive maintenance.

Application

  • 10kV/35kV indoor switchgear substations continuous online monitoring
  • Ring main unit (RMU) partial discharge real-time detection
  • Distribution network cabinet insulation status assessment
  • Power plant auxiliary power system switchgear monitoring
  • Industrial park power distribution room preventive maintenance

Features

  • Tool-free magnetic installation, 10-second deployment without power shutdown
  • Daisy-chain Ethernet design, single cable for power and data transmission
  • Built-in logarithmic detection and peak acquisition, real-time PD feature output
  • Supports up to 32 sensors cascading for full substation switchgear monitoring
  • CNC aluminum housing + epoxy potting, stable operation from -40℃ to 85℃

Parameter

Detection Type

Parameter

Value

AA Ultrasonic

Dynamic Range

0-65dBuV

 

Center Frequency

40KHz

 

Linearity Error

≤±15%

TEV

Dynamic Range

0-65dBmV

 

Bandwidth

3MHz-100MHz

 

Linearity Error

≤±10%

Communication

Interface

RJ45 Ethernet

 

Protocol

Modbus RTU

Power Supply

DC 24V

Daisy-chain

Installation

Magnetic (Cabinet Surface)

Non-intrusive

Environment

Temperature: -40℃~85℃, Humidity: 5%~95% non-condensing

 

After-sales guarantee

  • Free technical advice

    We provide you with free consultation services

  • On-site installation and commissioning

    Engineers provide guidance for installation and commissioning

  • Free training and maintenance

    Technicians can provide on-site maintenance services and receive regular training

  • Perfect after-sales services

    Perfect technical consulting service system

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