Multi-Channel Wireless Partial Discharge Sensor for Transformer Comprehensive Monitoring

• Customization: Available
• Installation Type: Magnetic Attraction
• Sensing Type: Tev
• Model NO.: WI-360
• Contact: Contactless
• Output Signal Type: Digital Type
• Production Process: Integration
• Material: ABS
• Measuring Medium: Temperature
• IP Rating: IP65
• Certification: ISO
• Customized: Customized
• OEM/ODM: Yes
• Protocol: Proprietary Protocol, Lorawan Protocol
• Communication Frequency Band: 433/470/868/915 MHz
• Temperature Measurement Range: Temperature Measurement Range: -30°C to 80°C
• Humidity Measurement Range: 0 ~ 100% Rh
• Transport Package: Carton Packaging
• Specification: 185 mm × 140 mm × 45 mm
• Trademark: Wisensor
• Origin: China
• Production Capacity: 100000/Year

Product Description

Measurement Range	Transient Earth Voltage (TEV): 0 - 60 dBmV; Ultrasonic (AA): 0 - 60 dBµV;
Transient Earth Voltage (TEV) Principle	Detects transient voltage signals to ground on the metal surface of the switchgear caused by internal partial discharge, reflecting the intensity and characteristics of the partial discharge. The sensor detection frequency range is 3 MHz - 150 MHz.
Ultrasonic Principle	Uses an air-coupled ultrasonic sensor to detect ultrasonic signals generated by partial discharge, with the sensor's center detection frequency at 40 ± 1 kHz.
Resolution	Transient Earth Voltage (TEV): 1 dBmV Ultrasonic (AA): 1 dBµV
Linearity Error	Transient Earth Voltage (TEV): Not greater than ±20% Ultrasonic (AA): Not greater than ±20%
Temperature and Humidity	-20°C to 80°C; 4% to 95%;
Communication Parameters	LoRaor NB/GSM
Dimensions:	185 mm × 140 mm × 45 mm
Power Supply	3.6 V high-capacity lithium battery (19000 mAh)
Installation Method	Magnetic suction type

Feature Overview

WI-360 Intelligent Partial Discharge Monitoring Sensor

During the operation of the power grid, the maintenance and inspection of electrical equipment are critical tasks to ensure the reliability of power supply, reduce safety risks during inspections, extend equipment lifespan, and improve the return on investment for equipment assets. High-voltage switchgear and ring main units are key nodes in the distribution network, where partial discharge poses a significant threat to their stable operation. The partial discharge sensor monitors data such as ultrasonic waves, ground waves, temperature, and humidity in real-time for each high-voltage cabinet in the distribution room. When partial discharge exceeds the threshold, the status indicator turns red, and an alarm event is generated, recorded, and stored. Simultaneously, alerts are sent immediately via SMS, phone calls, WeChat, email, and audible-visual alarms.

Toplogy

Features

√ Adopts high-precision sensors for highly accurate monitoring data;

√ Allows self-configuration of transmission time and level, with exquisite integrated design using ABS flame-retardant material;

√ Supports installation without power interruption, convenient and easy to use, transmits immediately upon startup;

√ Built-in high-capacity lithium sub-battery, ultra-low power consumption and ultra-long standby, with simple magnetic suction installation;

√ Multi-dimensional data display and intelligent analysis, with regular monitoring report services;

√ Features IP65 waterproof rating, suitable for direct application in various harsh environments without external wiring;

√ Open protocol supporting compatibility with TCP, Modbus, MQTT, and other protocols.

Application

Monitorable:

√  Ring Main Unit (RMU) Monitoring

√ Switchgear Monitoring

√ Box Transformer Monitoring

Display Interface

Case

Company Profile

Certifications