Wuhan GDMK Electric Co., Ltd
https://www.mktester.com/battery-tester/dc-system-insulated-online-monitoring.html
Overview:
The on-line insulation monitoring device of DC system balances the requirements of accuracy and safety of monitoring, and can detect all kinds of grounding fault, insulation decline, ring network state, AC series, DC interseries and other faults.The device combines the ping-pong principle and the passive monitoring principle in the active mode. Based on the multi-16-bit CPU parallel operation, the innovative distributed system architecture DADC and the advanced whole system analysis algorithm redefine the standard of the dc system grounding fault monitoring level.
technical parameter:
Can monitor the insulation impedance value range to the ground | Ground impedance | 0~50K |
Insulation to reduction | 51~500K | |
Voltage range can be monitored | Positive side voltage | 0~300V |
Load voltage | 0~300V | |
System total voltage | 0~300V | |
AC string voltage | 0~300V | |
Resist dc system distributed capacitance interference | >10000uF | |
Suitable for DC system voltage grades | 220V, 110V, 48V, 24V or user proposes other voltage grades | |
Number of DC circuits can be monitored | 500 road | |
ground impedance value when the host is connected to the DC system | > 1000K |
Voltage monitoring error | <0.5% | |
Ground insulation warning | With YX output contact | |
System voltage low-definition warning | 198V (with YX output contact) | |
System voltage high-definition warning | 242V (with YX output contact) | |
Interface | Standard RS232 / RS485 / RS422 Interface, Integrated Automation System, Scheduling Automation System Interface | |
Working ambient temperature | -30 ° C - + 50 ° C | |
Relative humidity | = 95% | |
DC voltage allows the ripple voltage coefficient | 2% |
Feature:
1. Real-time monitoring system AC and DC voltage and alarm;
2. Real-time monitoring system insulation and alarm;
3. Real-time grounding loop detection;
4. System loop detection and diagnosis;
5. Circuit insulation classification warning;
6. Circuit insulation classification warning;
7.Voltage balance function.