Insulation Monitoring Relay for Monitoring The Current Leakage and Insulation Resitance

• Customization: Available
• Theory: Electromagnetic Relay
• Usage: Insulation Monitor
• Model NO.: ZJS102
• Phase: 3
• Electricity Type: Dc
• Number of Pole: 3
• Load: Medium Power Relay
• Protective Characteristics: Enclosed Relay
• Action Principle: Electromagnetic Type
• Size: Miniature
• Type: Electric Parameter Relay
• Testing Voltage: 450V
• Operating Temperature: -30ºC ~ +50ºC.
• Measuring Range: 0-9999
• Dimensions: 48.4*20.2*12.9cm
• Accuracy Class: 1.0
• Transport Package: Please Consult for Details
• Specification: 10*10cm
• Trademark: OEM
• Origin: Chongqing, China
• Production Capacity: 500 Piece/Pieces Per Month

Product Description

Product Description

 

The DC system is the most important component of a high-voltage industrial/utility substation. It supplies the energy to manage the protective devices and high-voltage components and allows electrical faults to be safely isolated. Most high voltage substations house owns either a sealed or flooded cell battery bank.

Due to the complexity and dynamics of DC systems, DC ground faults caused by positive grounding or negative grounding are often difficult to locate. At the same time, due to the wide applications of intelligent relays and integrated automation systems, higher requirements are placed on the accuracy and safety of the DC system grounding monitoring device.

ZJS-102 DC System Insulation Monitor provides real-time online monitoring of DC bus and branch circuit insulation status. It combined the balance bridge detection with unbalanced bridge detection two modes, to avoid the interference of distributed capacitance in the system. Also, ZJS-102 can display the leakage current of each circuit in real-time.

 

Features

* Real-time monitoring of DC system voltage, pole-to-ground voltage, and alarm

* Real-time monitoring system insulation and alarm

* Detection DC system distributed capacitance

* DC system branch circuit insulation detects and classification pre-warning

* DC system branch circuit leakage current detection and diagnosis

* Balance bridge and unbalanced bridge detection combined detecting insulation condition

* Auto record of instantaneous grounding event and wave capture

* Support configuring the battery bank as a special branch, and provide leakage locating for the battery bank

* History recording and export to USB memory

* 0-inch touchscreen display parameters and configuration

* Front panel with 6 individual alert LEDs

* Rear panel has 7 DO ports for important alarm info to PLC

* Singe device supports 240 branch circuit monitor

* Current sensors support hot-swapping and sensor failure detection

* Provide multiple devices in parallel mode to expand and detect circuit quantities

* Subs slave device support hot-swapping and automatic identification

* RS485 and Ethernet (optional) communication port
 

Specification

Monitoring range of insulation resistance to ground
Earth alarm	0~50K
Pre-warning	50~300K
Working voltage range
Positive pole to ground	0~300V
Negative pole to ground	0~300V
System voltage	0~300V
AC injection voltage	0~280V
Busbar-II system voltage (DC cross detect)	0~300V
Battery bank insulation fault location error	±1 cell
Alarm history record
Record list quantities	2000 lists
Each record alarm list volume	≤32 branches
Real-time leakage current measurement
Screen display resolution	0.01mA
Current sensor range	10mA, 20mA, 50mA, 100mA optional
Each ZJS-102 port detect current volume	≤240 branches
Each ZJS-CU collector unit connected current sensor	≤8
Instant event record
Capture sampling ratio	1KHz, 500Hz, 250Hz, 125Hz configurable
Record quantities	2000
Waveforms for each instantaneous event	8
Others
Passive digital output	7
Fault alarm indicator	6
Distributed capacitance range of the system	0~200uF
Voltage monitoring error	≤0.5%
Communication interface	RS485, Ethernet
System vo0ltage balance compensation bridge	40K, 60K, 120K
Optional AUX	220VAC

Note: If you have any puzzles or requests about this product (including model number, data sheet or any other aspects), please contact us immediately.

Application

* DC speed regulating motor
* Solar power generation and other fields
* DC or AC/DC main circuits
* UPS systems, battery systems
* IT systems with high leakage capacitances
* DC charging stations for electric vehicles

Company Profile

Certifications

Our Service

FAQ