ZNGT-12 solid insulation fully enclosed medium voltage switchgear, the full range of programs have circuit breaker line protection, transformer protection, load control, fuse combination electrical appliances, PT power supply, busbar upgrading, the use of variable, and other programs for the upgrading and transformation of power grids and distribution of power users to provide a series of solutions to configure the intelligent terminal base station combinations to meet the needs of the smart grid. The product can be used as the power system ring network distribution equipment, also can be used as industrial and mining enterprises city construction of power distribution equipment, with multi-functional versatility.

Solid insulated fully enclosed switchgear; is the use of solid insulating materials as the main insulating medium, the vacuum interrupter and conductive connections, isolation switches, grounding switches, main busbar, branch busbar and other dominant electric circuits, single or combination of solid insulating medium wrapped in encapsulation for a certain function, can be combined again or expansion of the fully insulated, fully enclosed module with full insulation, fully encapsulated performance, the surface of the module that can be touched by the person coated with a conductive or semi-conductive shielding layer and a conductive or semi-conductive shielding layer, and the module has a multi-functional and universal characteristics. Conductive or semi-conductive shielding layer and direct reliable grounding of the ring network cabinet.

Touchable - the human-accessible main circuit modules are fitted with an earthing grid and coated with a conductive shielding layer and are reliably earthed. This eliminates the risk of ineffective maintenance and ensures that the user can operate and maintain the unit in absolute safety.

Three-position disconnecting switch-No false breaks, the design of the disconnecting switch in accordance with the standard regulations of GB1985-2014, adopting a special process structure. Pole pole design of circuit breaker-adopted double-layer shielding technology.

The butt one of circuit breaker, disconnecting switch and busbar all adopt online monitoring technology.

New materials for insulation encapsulation-A new insulation material epoxy resin + rubber particles + silica spherical particles + silica strip particles + silica micropowder plus shielding mesh alloy synthesis process was adopted.

The sealed insulating box of the three-position isolator can be filled with dry air pressurized at 0.04MPa to prevent condensation caused by the intrusion of moisture inside, and is equipped with a pressure gauge to monitor the internal pressure on-line to prevent leakage caused by the infiltration of moisture to produce internal condensation.

Medium pressure system is protected - from harsh environments (pollution, corrosive gases, condensation, humidity, dust, etc.). Significantly reduces the likelihood of arcing, longer life expectancy and high reliability in all situations.

Solid insulation technology - SF6-free insulation, no greenhouse gases, absolutely environmentally friendly.

Modular design - circuit breakers, three-position disconnectors with grounding device, small size, compact structure, easy operation and maintenance. Comprehensive and perfect series of programs - combination of programs, there are two types of structures, upper and lower isolation, to solve a variety of user programs.

Expansion and transformation - can be implemented in the field of various changes in the combination of expansion, 375 width design for the original SF6 product direct replacement.