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OM.R903 Cable Sheath Circulating Current Online Monitoring System

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Category:

Intelligent Cable Monitoring Product Series

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021-51698460

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产品描述

Commodity name: OM.R903 Cable Sheath Circulating Current Online Monitoring System

Product Overview
The OM.R903 cable sheath circulating current online monitoring system monitors the circulating current, operating current, and joint temperature of high-voltage cables in real time. It performs comprehensive data analysis and processing, accurately identifying faults such as multi-point grounding, abnormal grounding current, unbalanced three-phase circulating current cancellation, and joint overheating exceeding normal ranges, and provides timely alarms. It also features historical curves, providing comprehensive data support for analyzing the long-term operational stability of cable lines.

System Architecture

Sensor parameters

Signal Acquisition Unit	Number of measurement channels	≥4 channels
	Sampling frequency	≥1000 times/s
	Data Output Format	Fundamental Wave RMS Value
	Power Supply Method	Supports AC 220V, solar power, current transformer extraction, and backup batteries, among others. The current transformer used for power extraction should have a starting current no greater than 30 A, and its long-term operating temperature rise should not exceed the temperature rise of the cable's outer jacket.
Composite Current Sensor	Measurement Accuracy Class	0.5 Class
	Measurement Range	0.1A ~ 300A
	Operating frequency	45 Hz to 55 Hz
	Secondary Insulation Withstand Voltage	3kV (1 min)
Grounding Current Sensor	Measurement Accuracy Class	0.5 Class
	Measurement Range	0.1A ~ 300A
	Operating frequency	45Hz to 55 Hz
	Secondary Insulation Withstand Voltage	3 kV (1 min)
	Insulation impedance	>100 MΩ
	Shell material	Flame-retardant, corrosion-resistant, non-magnetic
	Installation Method	Toggle Clamp Type
	Inner diameter dimension	Matched to the outer diameter of the grounding cable
Composite Current Sensor	Insulation impedance	>100 MΩ
	Shell material	Flame-retardant, corrosion-resistant, non-magnetic
	Installation Method	Toggle Clamp Type
	Inner diameter dimension	Matched to the outer diameter of the grounding cable

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