Sales of ATX WJY3000A DJKQ-2000C Insulation Monitoring DC System Microcomputer Insulation Tester

1. Product Introduction

The DJKQ-2000C series centralized monitor is the main component of a complete set of high-frequency switching DC power supplies for electric power. It can form an intelligent monitoring system for the DC system with the monitoring and dispatching center computer in the background through telephone network, optical fiber, standard serial interface or network. The centralized monitor monitors the charger, storage battery, DC bus, insulation monitoring device, AC/DC power distribution device, etc. of the DC system in a decentralized control manner, and completes communication with the upper computer to achieve four remote functions of the DC system, including "remote signaling", "telemetry", "remote control", and "remote adjustment". It is widely used in large and medium-sized power plants, 500 kV and above substations, and other places, It is also applicable to 220kV and below substations, user stations, small power plants, and other places.

2. Technical parameters

1) Overall dimension: 456 * 210 * 114

2) Weight: 3KG

3) Switching value input: 16 channels

4) Switching value output: 8 channels

5) Number of monitored DC buses: 2 sections

6) Number of monitoring chargers: 5 groups

7) Monitored battery quantity: 2 sets

8) Number of monitoring battery inspection instruments: 3 sets

9) Quantity of monitoring insulation monitors: 16 sets

10) Number of monitoring feeder status monitoring modules 16 sets

11) Display interface: 4 lines in Chinese

12) Lower computer communication interface: RS485, 4

13) Upper computer communication interface: RS232/RS485, 1

14) Debugging communication interface: RS485, 1 pcs

15) Communication protocol: ministerial protocol, user specified protocol, etc

16) Working power supply: DC220/110V, DC48V

17) Applicable range of working power supply: ± 20% of rated voltage

18) Power consumption: ＜ 40W

19) Ambient temperature: - 5 ℃~+50 ℃

20) Relative humidity: 90% (large)

21) Applicable atmospheric pressure: 80~107kpa, corresponding altitude not exceeding 1000m