The XGN2-12 box-type fixed metal-enclosed switchgear is a high-voltage switchgear system developed and researched by Xi'an Electrical Research Institute. The primary components used in the equipment have all been redesigned, offering higher insulation levels and protection ratings compared to the currently widely used drawer-type switchgear and GG-1 (A) F type switchgear.

High voltage cabinet XGN66-121.SummaryThe XGN66-12 (GGX2-10) molded high-voltage vacuum switchgear is a new product jointly designed and developed by the Ministry of Mechanical Industry and the Ministry of Electric Power Industry to replace the GG-1A type high-voltage switchgear. This switchgear complies with IEC298 international standards and GB3906-91 national standards, and features reliable "five-proof locking functions." It can be equipped with vacuum circuit breakers of models ZN21, VS¹, ZN66, ZN28, or other types, offering strong compatibility, an elegant appearance, and easy maintenance, making it a superior distribution device.Note: According to the "High Voltage Switchgear Model Compilation Method" and GB/T2900.20-94 "Electrical Terminology for High voltage switchgear", the original product model "GG×2-10" is changed to XGN66-12", the technical parameters and performance of the two are exactly the same.2. Features of new products● Use vacuum circuit breaker as the main switch, less maintenance, no pollution, high life.● reinforced insulation.The air electrical gap is greater than or equal to 125mm, the creepage distance of porcelain insulators is greater than or equal to 210mm, and the creepage distance of resin insulators is greater than or equal to 230mm. The short-term condensation on the insulation surface does not affect its insulation level.● The live body is enclosed in the metal shell, and the main busbar between cabinets is supported by insulating bushings and used as inter-cabinet shielding.● Safe and reliable operation, easy maintenance.3. Basic skeleton sizeRated currentHigh (m m)Width (m m)Deep (m m)Below 1250A275010001200Below 3150A2750120012004. Purpose and scope of useThis product is suitable for three-phase AC power grid with rated voltage 3~10KV and frequency 50Hz. It is a complete set of distribution equipment for receiving and distributing electric energy and controlling, monitoring and protecting circuits.Environmental conditions used:a. Indoor air temperature +40℃~-15℃;b. The altitude does not exceed 1000m;c. The daily average air humidity (relative humidity) is not greater than 95%, and the monthly average is not greater than 90%;d. There is no flammable, explosive and chemical corrosive gas, no serious pollution, no violent vibration.5. Technical dataorder numberParameter nameonePositionparameter values1rated voltageKV36102maximum voltageKV3.67.2123rated frequencyHz504specifiedinsulationhorizontal1 minute power frequency withstand voltageRelative, identicalKV243242Between the breaksKV263648Full wave impact pressure resistanceRelative, interstitialKV406075Between the breaksKV4366855rated currentA630 1250 2500 31506Rated breaking currentKA20 31.5 407Rated operating cycleMinus 0.3S plus minus 180S plus minus8Rated dynamic stability current (peak)KA50 80 1009Rated thermal stability currentKA20 31.5 4010Rated thermal stability timeS4

This switchgear is a complete set of switchgear for three-phase AC 50Hz/60Hz single bus and segmented single bus systems. It is suitable for substations and distribution rooms in power plants, power systems, oil, chemical industries, enterprises, and institutions, serving to distribute electrical energy. It can control and protect power equipment such as generators, transformers, motors, and reactive power compensation devices.

The HXGN□-12 Box-type AC Metal-Enclosed Ring Main Switchgear is a new generation of high-voltage electrical products designed and developed by our factory, incorporating advanced foreign technologies and tailored to China's power supply requirements. It is suitable for urban grid renovation and construction needs.

The ZBW series modular substations (European style) and the ZBW (N) series modular substations combine high-voltage electrical equipment, transformers, low-voltage electrical equipment, and more into a compact integrated distribution device commonly known as European-style containerized substations. They are used in urban high-rise buildings, rural and urban structures, residential areas, high-tech development zones, small and medium-sized factories, mines, oil fields, and temporary construction sites for power reception and distribution in the electrical system.

GGD type AC low voltage distribution cabinet is suitable for power plants, substations, factories and other power users of AC 50HZ, rated working voltage 380V, rated working current up to 3150A distribution system, as power, lighting and distribution equipment energy conversion, distribution and control.

GGS low-voltage drawer switchgear is widely used in power distribution centers of power plants, substations, industrial enterprises, and high-rise buildings, as well as in motor control centers (MCC). It serves as a low-voltage complete distribution device for centralized control of power distribution and motor operation in AC systems operating at 50-60Hz, with rated voltages up to 660V and rated currents up to 4000A. It is also used for reactive power compensation.

Resin-insulated dry-type transformers are developed by our company through the introduction of advanced foreign technology and independent research. We have developed the SC9, SCB9 series, as well as the SC10 and SCB10 series of dry-type transformers. Due to the coils being encapsulated in epoxy resin, these transformers are flame-retardant, fireproof, explosion-proof, maintenance-free, non-polluting, compact, and can be installed directly at load centers. The scientific and rational design and casting process ensure that the product has lower partial discharge, low noise, strong heat dissipation capabilities, and can operate for long periods under forced air cooling conditions at 125% rated load. Equipped with an intelligent temperature controller, it features fault alarms, over-temperature alarms, over-temperature tripping, and black box functions. It also connects to a computer via a RS485 serial interface for centralized monitoring and control.

Using isotropic soft magnetic conductive materials, the magnetic power is low, the resistivity is high, and eddy current losses are minimal. The core made of amorphous alloy material has very low no-load loss and no-load current, only one-third that of silicon steel sheets. The no-load loss of the transformer is 75% lower than the specified value in GB/T10228. This can significantly reduce operating costs and achieve remarkable energy savings.

The three-phase oil-immersed distribution transformer produced by our company uses a new type of insulation structure to improve the short circuit resistance; the core is made of high quality cold rolled silicon steel sheet; the high voltage winding adopts multi-layer cylindrical and pancake structure; all fasteners are specially treated for anti-loosening.

Fully sealed, long life, small volume, low loss, low operating cost Low noise, maintenance free

The magnetic core material is made of amorphous alloy. Amorphous alloy is an alloy where iron, boron, and other elements are used as raw materials, and through special processes such as rapid cooling, they are cast into thin strips, causing the atoms to arrange in a disordered manner. Due to its soft magnetic properties, the hysteresis loop of amorphous alloy is very narrow, meaning it requires only a small amount of magnetization power. Therefore, transformers made from amorphous alloy materials have very low no-load losses.