High voltage switchgear series


HXGN15-12 box type fixed metal enclosed ring network switchgear (referred to as ring network cabinet) is suitable for AC 50Hz, 12kv power systemsWidely used in industrial and civil cable ring networks and power supply terminals.Especially suitable for small secondary substations, switching stations, urban residential distribution, industrial and mining enterprises, shopping mallsairports, subways, wind power generation, hospitals, sports venues, railways and other places.

Altitude: ≤1000m (if there are special requirements, please indicate when ordering,curently there are 6 groups operating at an alitude of 5200m);
Environmental temperature: -35 *℃ +45 *C , maximum daily average temperature difference ≤ 25 *C ;
Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%;
Shockproof 8 degrees;
Intense vibration and impact, as well as places without fire, chemical corrosion, or explosion hazards;
Note: When ordering this product beyond the above conditions, please consult with our company.


GB 3906-2006“3.6 kV~40.5 kV AC Metal Enclosed Switchgear and Control Equipment";
lEC 60298-1990 "AC metal enclosed switchgear and control equipment for rated voltages above 1kV to 52kV and below"
GB/T 11022-2011 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards"


SF6 ring network cabinet is easy to combine and expand, small in size, safe and reliable
SF6 gas is used as insulation and arc extinguishing medium, and the constant magnetic field arc extinguishing method ensures that its arcextinguishing ablitly is not afected by the arc curent size, with good breaking performance, low overvotage, long electrical life, and maintenance free arc extinguishing chamber

It can have three workstations, multiple functions, and can be equipped with a miniaturized pressure gauge
Simple operation, high reliability operating mechanism and locking;
Passed the rated breaking test of SF6 gas with zero gauge pressure, with a large functional margin and high possibility
The grounding switch has the ability to open and close short circuits in accordance with national standards
The cabinet body is stamped and formed with imported aluminum zinc coated plates, using a modular structure that is sturdy and resistant todeformation.


Overall structure

The ring network cabinet is composed of a busbar room,load switch (or circuit breaker room), cable room, operaing machinery,interlocking mechanismlow-voltage control room, and measurement or metering circuit. Each compartment is divided by steel plates to avoid fauts affecting adjacent rooms.Bus compartment

The busbar room is arranged at the upper part of the cabinet, where the main busbar is connected together and runs through the entire row ofswitchgear. The busbar is arranged horizontally, making it easy to expand.

Main switch roomLoad switch room: There is a load switch installed in the switch room. The shell of the load switch is made of epoxy resin, filed with SF6 gas as arexinguishing and insulalon medum, here are wo transparent hot pressed plasic end caps at the outout end of the operatina shalt. throuoh whichthe contact status can be observed. SF6 gas densily meters or gas density meters with alarm contacts can be installed in the open room according tocustomer requirements

Circuit breaker room: The circuit breaker room is located in the midle ofthe cabinet and can be equipped with dedicated vacuum circuit breakers or SF6circuit breakers according to customer needs. its breaking capacity can meet the requirements of normal switching and branch network operations, as welas breaking short circuit currents under special circumstances,.Vacuum circuit breakers are particularly suitable for frequent operation of network systemsThe circuit breaker is equipped with a spring operating mechanism, which has a reclosing function, reliable operation, and long service lifeCable room

The cable compartment is mainly used for cable conection, allowing single core or three core cables to be connected using the simplest non shieldedcable heads, At the same time, the ample space can also accommodate components such as lightning aresters,curent transformers, and lower groundingswitches. According to the standard design, the cabinet door has observation windows and safety interlocking devices, and the cable compartmentbotom plate is equipped with sealing covers and cable clamps of appropriate size with brackets, The door front frame of the cable compartment bottomplate can be removed to facilitate cable installation.

Operating mechanism, interlocking mechanism, and low-voltage control roomThe low-voltage room with interlocking also functions as a control panel. The low-voltage room is equipped with spring operating mechanisms andmechanical interlocking devices with position indicators, as well as auxlary contacts, trip coils, emergency triping mechanisms, capacitive live displaydevices, keylocks, and electric operating devices. At the same time, the low-voltage room space can also be used to install control circuits, recordingnnstruments.anc orotectiveaccommocatemore accessorles





Contact with us