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DingzhouXGN□-24 Type AC Metal-Enclosed Switchgear (abbreviated as C-GIS)

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Product Description

　　 Product Overview

　　The XGN□-24 (SF18-24) gas-insulated high-voltage AC metal-enclosed switchgear (SF6 gas-insulated cabinet) is a new-generation, fully enclosed stainless-steel gas-insulated switchgear manufactured using advanced welding, gas charging, and leak-testing technologies. All live components are sealed within a stainless-steel enclosure filled with SF6 gas, and both the gas compartment and the fuse cartridge achieve an IP67 protection rating. Featuring a modular design, it is compact yet highly configurable and scalable, allowing for flexible configuration of combined electrical units and circuit-breaker units. This product is widely used in the construction and renovation of urban power grids, suitable for ring-network and terminal power supply in various distribution systems, and also ideal for integration into prefabricated substations and switchgear stations. It boasts fully enclosed construction, maintenance-free operation, a compact structure, and high reliability.

　　 Product Notes

　　Note:

　　1. The parameters of the circuit breaker unit are determined by the intrinsic parameter values of the circuit breaker itself;

　　2. The relevant parameters of the switchgear unit depend on the rating values of the fuse.

　　 Main Technical Parameters of the Product

Project	Parameters	Project	Parameters
Rated voltage kV	24	Rated short-time power-frequency withstand voltage (interrupting gap) kV	79
Rated current A	1250	Rated lightning impulse withstand voltage (interrupter) peak kV	145
Rated frequency Hz	50	Classification levels based on mechanical life	M2
Rated short-circuit breaking current kA	25	According to the classification level of electrical life	E2
Rated short-circuit making current kA peak	63	Classification levels based on the switching capacity for capacitive current	C2
Rated short-time withstand current duration, s	4	Rating of auxiliary contacts	2
Rated short-time withstand current kA	25	Closing Operation Voltage V (Maximum/Rated/Minimum)	AC242/220/187
Rated peak withstand current kA peak	63	Trip Operation Voltage V (Maximum/Rated/Minimum)	AC242/220/143
Rated cable charging and breaking current A	25	SF6 gas rated filling pressure (gauge pressure at 20°C) MPa	0.045
Rated line charging make-and-break current A	10	Minimum operating pressure of SF6 gas (gauge pressure at 20°C): MPa	0.02
Rated short-time power-frequency withstand voltage, kV	65	Rated lightning impulse withstand voltage, kV peak	125