Technology of Electrical Automatic

ZJS-102 DC System Insulation Monitoring

ZJS-102 DC System Insulation Monitoring

ZJS-102 Insulation monitoring system is a highaccurate and secure online monitoringequipment for DC system insulation. It isdesigned for the measurement of differenttypes of ground fault, insulation decreasing,AC signal interruption, DC signal interruptionand so on.

Monitor detect DC leakage current, mixed withbalanced & unbalanced bridge detectionmode, can display leakage current of each subexport loops. It integrates voltage transientcapture and current synchronous detection,records voltage and current fault curves toachieve instantaneous grounding monitoringand line selection alarm functions.

ZJS-102 Insulation monitoring system is a highaccurate and secure online monitoringequipment for DC system insulation. It isdesigned for the measurement of differenttypes of ground fault, insulation decreasing,AC signal interruption, DC signal interruptionand so on.

Monitor detect DC leakage current, mixed withbalanced & unbalanced bridge detectionmode, can display leakage current of each subexport loops. It integrates voltage transientcapture and current synchronous detection,records voltage and current fault curves toachieve instantaneous grounding monitoringand line selection alarm functions.

Features

  • Monitoring various faults in the DC system:
    All types of grounding, abnormal voltage,voltage difference etc.
  • Monitoring AC injection faults in DC systems.
  • Monitoring ring network DC system faults.
  • Accurately detect distributedcapacitance of DC system to GND.
  • Detect the leakage current of all branches.
  • With battery pack grounding monitoring andpositioning functions.
  • Multi-caliber open and closed CT can meetall usage scenarios.

 

System Functions:

  • Real-time monitoring system AC and DC voltage and alarm
  • Real-time monitoring system insulation and alarm
  • Loop insulation classification early warning
  • Instantaneous grounding recording
  • Loop Leakage Current Detection and Diagnosis
  • Grounding History Analysis
  • Voltage balance function
  • Battery circuit insulation monitoring
  • System distributed capacitance detection
  • Device self-test
  • Real-time communication status monitoring
  • Data upload and alarm output
  • Calibration and configuration

Specifications

Detect range of insulation resistance to ground:

Ground impedance 0 – 50Kohm
Insulation reduction 50-300Kohm
Balance compensation bridge 40K, 60K, 120K;

Detect voltage range:

Positive to ground voltage 0 – 300V
Negative to ground voltage 0 – 300V
Total system voltage 0- 300V
AC interference voltage 0- 300V
Voltage monitoring error ≤0.5%

Real-time current:

Current display resolution 0.01mA
Current display channels ≤240
Current sensor range 10mA, 20mA, 50mA, 100mA optional

History record:

Insulation fault location ±1pcs in battery bank
Number of the record list 2000 lists, every list include 32 channels
Recording frequency 1KHz, 500Hz, 250Hz, 125Hz configuraion
Waveforms capture 8 lists per record

Others:

Passive nodes 7 output
Fault indicator lights 6pcs
Distributed capacitance 0-200uF
Communication interface RS485 / Ethernet

Typical wiring

Notes:

1*ZJS-102 can connect max 30pcs ZJS-CU.

1*ZJS-CU can connect 8pcs of CT, to monitor 8 feeder loops.

CT can selection depends on feeder cable diameter, please contact our sales team for more help.

Products do not include wiring cable, Blue Jay suggest use CAT5e cable.

Downloads

Brochure of DC Insulation Monitor Device