PARTIAL DISCHARGE OF HIGH-VOLTAGE CABLES AND COMPREHENSIVE ONLINE MONITORING SYSTEM

The system realizes accurate monitoring of cable partial discharge conditions through high-sensitivity partial discharge sensors and intelligent collection terminals, with an effective rate of over 80%. At the same time, the system can comprehensively monitor the cable operating status and environmental conditions such as grounding circulating current, joint temperature and vibration, multiple gases, water level, manhole cover displacement, and video. The system can choose AC/DC, solar energy, CT power, battery power supply and other power supply methodsindustrial bus, Ethernet, optical fiber, VPN private network, 4G and other communication methodssupport ModBus-RTU, TCP/IP, Data transmission protocols such as UDP and MQTT.

PARTIAL DISCHARGE AND TEMPERATURE MONITORING DEVICE OF SWITCH CABINET/RING NETWORK CABINET

The partial discharge and temperature monitoring device of switchgear/ring network cabinet is a multi-channel partial discharge online monitoring product. The product adopts effective hardware filtering and expert diagnosis and analysis algorithms, which can accurately diagnose the insulation faults of switchgear and other high-voltage equipment.

MULTI-STATE INTELLIGENT MONITORING DEVICE FOR SWITCHGEAR

The switchgear multi-state intelligent monitoring device provides two configurations to realize the operation state monitoring of the switchgear and provide a basis for the maintenance of the switchgear.
Configuration 1: It is suitable for the installation of switch cabinets that have been powered on. Obtain the status information of the switchgear during operation through a variety of intelligent partial discharge sensors, and further adopt the LoRa wireless communication method to transmit to the switchgear wireless data receiving terminal.
Configuration 2: It is suitable for installation before the operation of the switch cabinet of the newly built substation. A variety of partial discharge sensors are used to obtain the status information of the switchgear during operation. The collection device uses a single data bus and a power supply integrated multi-core cable for connection, which minimizes the number of wiring.