GZDW Type DC power supply cabinet
Key attributes
| Brand | Wone |
| Model NO. | GZDW Type DC power supply cabinet |
| Rated frequency | 50Hz ± 5% |
| AC input voltage | AC220V ± 10% |
| DC output voltage | DC220V |
| Series | GZDW |
Product descriptions from the supplier
Description ：
I produced GZDW series DC power screen widely used in the power system large, medium and small power stations and substations and other electrical equipment, secondary circuit protection devices DC power system, as a control, signaling, communications, protection and DC emergency lighting, motor starting and power units and other power equipment can also be used for post and telecommunications and other industries to meet the needs of power engineering, but also can be used as a DC voltage, constant current power supply, and other DC operating power. Our company is strong in technology, product performance and stability, has won the trust of customers, products sold throughout the country and abroad, is the Ministry of Power Industry sentinel GZDW series DC power supply cabinet (hereinafter referred to as: DC cabinet) production enterprises. Products in strict accordance with international and national quality assurance production, product type testing by the Ministry and experts management system, in line with JB / T 5777.4-2000 "power system DC power supply General technical conditions and safety requirements" and DL / T459-2000 "Power system DC power supply cabinet order technical conditions "requirement. This product uses high-frequency switching power supply module or phase-controlled rectifier device as charging float charging devices. GZDW with technical indicators advanced, low maintenance, high efficiency, small size and other characteristics of the battery charge, floating charge and DC power intelligent management of working conditions, protection of battery life. Equipped computer controller (PLC controller or microcontroller) of the product also has a remote function, improve the reliability and automation level of the DC system.
Technical feature：
Efficient power conversion technology.
Intelligent management function.
Compact structural layout.
High-reliability design.
Good electromagnetic compatibility.
Flexible configuration and expandability.
Main technical parameters:
The use of environmental conditions：
Should you ground a DC power supply?
A:Yes, in many cases, it is necessary to ground a DC power supply. Grounding helps to improve safety by preventing electric shock in case of insulation failure. It also helps to reduce electromagnetic interference and stabilize the electrical potential of the power supply, which is beneficial for the proper operation of electronic devices. However, there are some specific low - voltage and isolated DC power supplies that may not require grounding depending on the application and safety regulations.
Related Products
-
High frequency online UPs power supply (Single phase/220V)
-
High frequency on-ine UPS power supply (3Phase Input1Phase output)
-
High frequency on-line (rack type) UPS power supply
-
High frequency on-line UPS (3phase in and 3phase out)
-
low frequency on-line UPs power supply (single phase220V)
-
low frequency on-line UPs power supply (3phase input 1phase output)
-
Low frequency on-line UPs power supply (3phase in and 3phase out)
Related Knowledges
-
How to Judge, Detect and Troubleshoot Transformer Core Faults1. Hazards, Causes, and Types of Multi-Point Grounding Faults in Transformer Cores1.1 Hazards of Multi-Point Grounding Faults in the CoreUnder normal operation, a transformer core must be grounded at only one point. During operation, alternating magnetic fields surround the windings. Due to electromagnetic induction, parasitic capacitances exist between the high-voltage and low-voltage windings, between the low-voltage winding and the core, and between the core and the tank. The energized windin01/27/2026 -
A Brief Discussion on the Selection of Grounding Transformers in Boost StationsA Brief Discussion on the Selection of Grounding Transformers in Boost StationsThe grounding transformer, commonly referred to as "grounding transformer," operates under the condition of being no-load during normal grid operation and overloaded during short-circuit faults. According to the difference in filling medium, common types can be divided into oil-immersed and dry-type; according to phase number, they can be classified into three-phase and single-phase grounding transformers. The groundi01/27/2026 -
Impact of DC Bias in Transformers at Renewable Energy Stations Near UHVDC Grounding ElectrodesImpact of DC Bias in Transformers at Renewable Energy Stations Near UHVDC Grounding ElectrodesWhen the grounding electrode of an Ultra-High-Voltage Direct Current (UHVDC) transmission system is located close to a renewable energy power station, the return current flowing through the earth can cause a rise in ground potential around the electrode area. This ground potential rise leads to a shift in the neutral-point potential of nearby power transformers, inducing DC bias (or DC offset) in their01/15/2026 -
HECI GCB for Generators – Fast SF6 Circuit Breaker1.Definition and Function1.1 Role of the Generator Circuit BreakerThe Generator Circuit Breaker (GCB) is a controllable disconnect point located between the generator and the step-up transformer, serving as an interface between the generator and the power grid. Its primary functions include isolating generator-side faults and enabling operational control during generator synchronization and grid connection. The operating principle of a GCB is not significantly different from that of a standard c01/06/2026 -
Distribution Equipment Transformer Testing, Inspection, and Maintenance1.Transformer Maintenance and Inspection Open the low-voltage (LV) circuit breaker of the transformer under maintenance, remove the control power fuse, and hang a “Do Not Close” warning sign on the switch handle. Open the high-voltage (HV) circuit breaker of the transformer under maintenance, close the grounding switch, fully discharge the transformer, lock the HV switchgear, and hang a “Do Not Close” warning sign on the switch handle. For dry-type transformer maintenance: first clean the porcel12/25/2025 -
How to Test Insulation Resistance of Distribution TransformersIn practical work, insulation resistance of distribution transformers is generally measured twice: the insulation resistance between thehigh-voltage (HV) windingand thelow-voltage (LV) winding plus the transformer tank, and the insulation resistance between theLV windingand theHV winding plus the transformer tank.If both measurements yield acceptable values, it indicates that the insulation among the HV winding, LV winding, and transformer tank is qualified. If either measurement fails, pairwise12/25/2025
