GZDW DC Power Supply High-voltage Switchgear
✅Intelligent Switching and Control
✅Advanced DC Protection
✅Comprehensive Condition Monitoring
✅Data Communication and Remote Management
✅Fault Recording and Analysis
- Product Introduction
GZDW(microcomputer control) DC power supply high-voltage switchgear is a new generation replacement product developed to meet the requirements of unattended substation.Suitable for large,medium and small power plants and substations,in normal operation and accident state of high voltage switch breaking-closing,relay protection,automatic control, accident lighting and other required DC power supply.
Model Meaning
①.Cabinet type
②.DC electrical cabinet
③.Electric power system
④.Microcomputer control
⑤.Design serial number
⑥.Battery Capacity(AH)
⑦.Rated voltage(V)
⑧.G:cadmium nickel battery; M:Lead-acid battery
● The core is a microprocessor,his indicates that its control, protection, and monitoring functions are performed by a programmable intelligent unit, achieving automation, digitalization, and network connectivity.
● DC Power,pecifies that the device is designed for Direct Current power systems.
● Switchgear,Refers to a complete set of electrical equipment for receiving and distributing electrical energy, and for controlling, protecting, and measuring circuits.
Technical parameters
|
ltem |
Sequence number specification |
Specification (type) |
Scope of application |
|
GZDW30-口- /口 |
Single bus segment,single battery two dual-line charging output,no step-down circuit |
10 |
Powerplants or large substations |
|
GZDW31-口- /口 |
Single bus,single battery, two dual-line charging output,no step-down circuit |
10 |
|
|
GZDW32-口- /口 |
Double bus segment,single battery, two double line charging output |
20 |
10-220kV substations and small and medium-sized plants |
|
GZDW33-口- /口 |
Double bus,single battery, two dual-line charging output |
20 |
|
|
GZDW34-口- /口 |
Double bus segment,single battery, two three-wire charging outpu |
20 |
|
|
GZDW35-口- /口 |
Double bus,single battery, two three-wire charging output |
20 |
|
|
GZDW40-口- /口 |
three double line charging output,no buck circuit |
10 |
Major power plant or substation |
|
GZDW41-口- /口 |
Double bus,double battery,two double line charging output |
12 |
10-220kV substations and small and medium-sized plants |
|
GZDW42-口- /口 |
Double bus segment,double battery, three double line charging output |
10 |
Major power plants or large substations |
|
GZDW43-口- /口 |
Double bus,double battery,two three-wire charging outpu |
12 |
10-220kV substations and small and medium-sized plants |
Note:When high-frequency switching power modules are used as charging devices,the number of modules is configured according to the principle of N+1 redundancy.
Usage conditions
① Ambient temperature: not higher than +50℃, not lower than -10℃.
② Altitude：No more than 2000m.
③ Relative humidity: daily average is not more than 95%, monthly average is not more than 90%.
④ Earthquake intensity: not more than 8 degrees.
⑤ Installation location: no fire, explosion risk, serious pollution, chemical corrosion and violent vibration.
⑥ Installation Site: Indoor.
⑦ Installation mode: anchor bolt welded.
Usage application
● DC control power systems in power plants and substations, providing reliable operational power for protection devices, signaling systems, emergency lighting, etc.
● DC traction power supply systems for subways and electrified railways.
● Uninterruptible DC distribution systems in large data centers and semiconductor factories.
● DC power collection and distribution in photovoltaic power plants and energy storage stations.
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