Products

GZDW Intelligent High-Frequency Switching DC Power Supply

The GZDW intelligent high-frequency switch DC power supply (microcomputer-controlled) is applicable to large, medium, and small power plants and substations, serving as the DC power source required for operating high-voltage switchgear in both normal and emergency conditions, including circuit breaker operations, relay protection, automatic control, emergency lighting, and visual and audible signaling. It can also be used as a DC power source in industries such as metallurgy, railways, mining, petrochemicals, postal and telecommunications, communications, healthcare, banking, hotels, high-rise buildings, and computer networks. The microcomputer-controlled DC power supply cabinet is suitable for power plants, substations, and other industrial applications that require unattended operation and centralized remote monitoring. This product complies with [relevant standards].

Category:

Low-Voltage Switchgear

Tel:

+86-370-2020101

E-mail:

1074477171@qq.com

Inquiry

Introduction

Product Overview

　　The GZDW intelligent high-frequency switch DC power supply (microcomputer-controlled) is applicable to large, medium, and small power plants and substations, serving as the DC power source required for high-voltage switchgear operation—both under normal conditions and during fault situations—as well as for relay protection, automatic control, emergency lighting, visual and audible signaling, and other related functions. It can also be used in industries such as metallurgy, railways, mining, petrochemicals, postal and telecommunications, communications, healthcare, banking, hotels, high-rise buildings, and computer networks to provide the necessary DC power. The microcomputer-controlled DC power supply cabinet is suitable for power plants, substations, and other industrial applications that require unattended operation and centralized remote monitoring. This product complies with [relevant standards].

　　JB/T5777.4-2000 Standard “General Technical Specifications and Safety Requirements for DC Power Supply Equipment in Power Systems.”

Model and Meaning

Main Technical Parameters

◆ 1. Input power supply voltage: Three-phase AC 380V ± 10%, 50Hz ± 5%;

◆ 2. Rated output DC voltage: 48V; 110V; 220V;

◆ 3. Rated output DC current: 5A, 8A, 10A, 15A, 20A, 30A, 40A, 50A;

◆ 4. Battery rated capacity: 10Ah, 20Ah, 38Ah, 40Ah, 50Ah, 60Ah, 65Ah, 100Ah, 150Ah, 200Ah, 250Ah, 300Ah (Note: Special cases can be negotiated).

◆ 5. Voltage adjustment range:

Voltage Adjustment Table Range
Output DC voltage rating	48V	110V	220V
Floating voltage adjustment range	43 ~ 57	99 ~ 130	198 ~ 260
Equalization Charge Voltage Adjustment Range	54 ~ 62	125 ~ 140	198 ~ 286
Main charging voltage adjustment range	43 ~ 70	99 ~ 162	187 ~ 310

◆ 6. Output DC current adjustment range: 0 to 100% of the rated value;

◆ 7. Voltage regulation accuracy: <± 1%;

◆ 8. Current regulation accuracy: < ±1%;

◆ 9. Operating Mode: Continuous operation;

◆ 10. Efficiency: >90%;

◆ 11. Protection rating: IP20-HP30.

Operating environment conditions

◆ 1. Altitude: 2,000 meters and below (for altitudes exceeding 2,000 meters, please consult with our company for a solution);

◆ 2. Ambient temperature: -5 ℃ ~ 40 ℃;

◆ 3. Relative humidity: The daily average shall not exceed 85% (+25℃);

◆ 4. Special circumstances can be resolved through negotiation with the company.

◆ 5. The applicable scope for different specifications is shown in the table below:

Product Model	Serial Number Description	Specification (Type) Applicable Scope
GZDW-30-mouth/mouth	Single battery group, single busbar with sectionalization, two dual-line output charging and float charging units, no step-down circuit.	10 Power plant or large substation
GZDW-31-mouth/mouth	Single-battery group, single busbar, two-unit dual-wire output charging and float-charge device—no step-down circuit.	10 Power plant or large substation
GZDW-32-mouth/mouth	Single-battery group, single-busbar sectioning, and two dual-line output charging and float-charge units.	20 12kV–220kV substations and small- and medium-sized power plants
GZDW-33-mouth/mouth	Single-battery group, dual-busbar, two-unit dual-line output charging and float-charge device	20 12kV-220kV substations and small- and medium-sized power plants
GZDW-34-mouth/mouth	Single-battery group, dual-busbar sectionalized design, and two three-phase output charging float charger.	20 12kV-220kV substations and small- and medium-sized power plants
GZDW-35-mouth/mouth	Single-battery group, dual-bus, two-unit three-wire output float charging device	20 12kV-220kV substations and small-to-medium-sized power plants
GZDW-40-mouth/mouth	Dual-battery system, single busbar section, two dual-line output charging and float-charge units, no step-down circuit.	10 Important power plants or large substations
GZDW-41-mouth/mouth	Dual-battery configuration, dual-bus sectionalization, and three dual-line output float charging units.	12 12kV-220kV substations and small- and medium-sized power plants
GZDW-42-mouth/mouth	Single-battery group, dual-bus sectionalization, and three double-line output charging and float charging units.	10 Important power plants or large substations
GZDW-43-mouth/mouth	Single-battery group, dual-busbar, two-unit dual-line output charging and float-charge device	12 12kV-220kV substations and small- and medium-sized power plants