ODM GXGN-12 Solid-Insulated Fully Enclosed Ring Main Unit Switchgear Manufacturers, Company
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ODM GXGN-12 Solid-Insulated Fully Enclosed Ring Main Unit Switchgear Manufacturers, Company

ODM GXGN-12 Solid-Insulated Fully Enclosed Ring Main Unit Switchgear Manufacturers, Company

GXGN-12 Solid-Insulated Fully Enclosed Ring Main Unit Switchgear is an eco-friendly, maintenance-free ring main unit with all live parts sealed in epoxy resin—no SF6 gas. This solid fully insulated closed ring switchgear features modular design (V/C/F units) for flexible configurations. Its APG gel-insulated primary components, R-type magnetic contacts, and integrated spring mechanism ensure superior breaking capacity, electrical life, and reliability. Ideal for 12kV/50Hz networks, this solid fully insulated closed ring switchgear suits indoor/outdoor installations in substations, residential areas, and industrial parks. With optional smart controllers and compact structure, it enables distribution automation while guaranteeing safety and 100% environmental compliance.

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Product Description

Type Designation

Solid-Insulated-Fully-Enclosed-Ring-Main-Unit-Switchgea-8
1 Manufacturer Code
2 Solid Fully Insulated Enclosed Ring Main Unit Switchgear
3 Design Serial Number
4 Rated Voltage (kV)
5 Rated Current (A)
6 Switch Type:
C - Load Switch;
V - Circuit Breaker; G - Disconnector;
F - Load Switch-Fuse Combination Switchgear;
CB - Load Switch without Grounding;
VB - Circuit Breaker without Grounding
VZ - Circuit Breaker Linked Switch
7 Rated Short-Time Withstand Current (20, 25kA)
8 B: Without Grounding Switch; Z: Bottom Direct Outgoing Line

Switchgear Technical Parameters

Name Unit Parameter
Rated Voltage kV 12
Rated Frequency Hz 50
Rated Current A 630 1250
Rated Insulation Level Power Frequency Withstand Voltage Break kV 48
Phase-to-Phase kV 42
Phase-to-Ground kV 42
Lightning Impulse Withstand Voltage Break kV 85
Phase-to-Phase kV 75
Phase-to-Ground kV 75
Rated Short-Circuit Breaking Current (1s) kA 25 31.5
Rated Short-Time Withstand Current (4s) kA 25 31.5
Rated Peak Withstand Current (1p) kA 63 80
Rated Short-Circuit Making Current (Peak) (1ma) kA 63 80
Enclosure Protection Level IP4X
Operation Mode Spring-Operated (Energy Storage Type)

Product Display

GXGN-12-Solid-Insulated-Fully-Enclosed-Ring-Main-Unit-Switch
Solid-Insulated-Fully-Enclosed-Ring-Main-Unit-Switchgea-(5)
Solid-Insulated-Fully-Enclosed-Ring-Main-Unit-Switchgear

Disconnector and Earthing Switch Technical Parameters

No. Item Unit Parameter
1 Rated Voltage kV 12
2 Rated Current A 630 1250
3 4s Rated Short-Time Withstand Current(RMS) kA 25 31.5
4 Rated Peak Withstand Current(Peak) kA 63 80
5 1min Power Frequency Withstand Voltage Phase-to-Phase & Phase-to-Ground kV 42
Isolating Break 48
6 Rated Lightning Impulse Withstand Voltage Phase-to-Phase & Phase-to-Ground kV 75
Isolating Break 85
7 Main Switch Mechanical Life operations 3000
8 Earthing Switch Mechanical Life operations 3000

External Dimensions

GXGN-12-4

Switchgear Dimensions

Model Width (mm) Depth (mm) Height (mm)
Load Switch PT Cabinet (CPT) 500 950 1650
Circuit Breaker Cabinet (VB) 425 860 1850
Circuit Breaker Cabinet (V) 425 860 1850
Circuit Breaker Bus Tie Cabinet (VZ) 425 860 1850
Busbar Rising Cabinet (G) 425 860 1850
Load Switch-Fuse Combination Cabinet (F) 500 950 1650

Frequently Asked Questions

Q: What is the rated voltage and rated current of this switchgear?

The rated operating voltage is 12 kV at a rated frequency of 50 Hz. The rated current options are available in 630 A and 1250 A configurations.

Q: What is the enclosure protection rating of the solid insulated switchgear?

The equipment features an IP4X enclosure protection level, providing comprehensive protection against solid objects and ingress under operational environments.

Q: What operation mechanism is utilized in this switchgear?

The unit utilizes a spring-operated mechanism (energy storage type) that ensures reliable opening and closing functions under standard operating conditions.

Q: What are the mechanical endurance ratings for the main and earthing switches?

Both the main switch and the earthing switch are engineered for high operational durability, rated for up to 3,000 mechanical operations.

Q: What switch configurations and cabinet types are supported?

The switchgear supports various cabinet configurations including Load Switch PT Cabinet (CPT), Circuit Breaker Cabinet (VB/V), Bus Tie Cabinet (VZ), Busbar Rising Cabinet (G), and Load Switch-Fuse Combination Cabinet (F).

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