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GRJS-DC Microcomputer DC System

The design of the GRJS-DC DC system microcomputer high-frequency switch power supply panel follows the technical standards of the Ministry of Electric Power DL/T 459- "DL/T724-2000", DL/T781-2001, and JB/T 5777.4-2000, and it can reliably meet the power supply requirements of the DC control power supply and high and low voltage switch opening and closing under normal or abnormal conditions of the power generation and distribution system. It is suitable for thermal power plants, hydropower stations, substations, switch stations, pump stations, industrial and mining, petrochemical, railway and other fields, as an operation and control power supply for power system circuit breakers, automation equipment, and emergency lighting power supply. It can also be applied to all other places that require DC uninterrupted power supply.

关键词：

Microcomputer DC System

Keywords:

Electrical equipment | electrical automation

Category:

GRJS-DC Microcomputer DC System

Consultation：

+86 731 89926308

Consultation

Product Introduction

System Features and Main functions

System characteristics

♦ Adopts the unique modular design of switching power supply, N+1 hot backup, high reliability;

♦ Intelligent high frequency switch rectification technology is adopted to realize intelligent charging management of the battery.

♦ The charging module system adopts natural cooling mode to improve MTBF(Mean Time Between Failure), which can adapt to the relatively harsh environment;

♦ The charging module can be electrically inserted and removed, and the average maintenance time is greatly reduced;

♦ High-precision dynamic current sharing, which can be operated autonomously, master-controlled or controlled;

♦ Using the latest international soft switch technology, all key components are imported high-quality brand-name products;

♦ The monitoring module adopts large-screen LCD display, friendly and rich interface, sound and light alarm, Chinese/English can be selected;

♦ The parameters of each part of the system can be set through the monitoring module;

♦ Reliable lightning protection and a high degree of electrical insulation;

♦ With the output voltage and current smooth adjustment function, battery temperature automatic compensation function;

♦ Equipped with multiple expansion ports to access a variety of external devices;

♦ It can achieve "remote metering, remote control, remote signaling, remote adjustment" of the power system, and unattended.

Main function

♦ Fully automatic, manual intelligent charging and management (including equalizing float charging conversion control and switch on/off control);

♦ The running status, charging current, and fault alarms of all power modules are displayed online.

♦ Three-phase AC input voltage and current detection and over voltage, under voltage, phase loss, power loss alarm;

♦ Closing bus voltage, discharge current detection and closing bus overvoltage, undervoltage alarm;

♦ Control bus voltage detection and overvoltage and undervoltage alarms;

♦ Battery voltage detection overvoltage, undervoltage alarm;

♦ Busbar-to-ground insulation detection and positive and negative pole grounding alarm;

♦ Historical alarm event check.

System structure

The power operation power supply system mainly consists of several parts, including AC distribution unit, charging module, monitoring module, distribution monitoring box, DC feeder, insulation monitoring, etc.