DSY-XGN-12 Solid Insulated Switchgear

Overview:

Since the 1990s, with the continuous acceleration of urbanization and improvements in power supply reliability, urban overhead lines have gradually been replaced by underground cables, and indoor switching stations have been gradually replaced by outdoor switching stations. Fully insulated, touchable, flood-resistant, compact, and maintenance-free ring network switchgear has developed rapidly. It is now widely used in high-reliability power distribution systems such as urban commercial centers, industrial zones, airports, electrified railways, and highways. This equipment can be used independently indoors and outdoors or integrated into prefabricated substations.

The DSY-XGN-12 solid insulated switchgear has introduced advanced production equipment and manufacturing technology to enable localized production, greatly reducing manufacturing costs and shortening delivery times. Since its launch, it has been highly praised by users.

Switchgaers Structure:

Product Features:

• Safe, fully insulated, and fully sealed design
  The first live parts of the DSY-XGN-12 solid insulated switchgear, including the busbar and the movable parts of the high-voltage switch, are sealed in a shell made of epoxy resin. The DSY-XGN-12 solid insulated switchgear is equipped with bushings that comply with the DIN 47636 standard. It can be connected to incoming and outgoing cables through fully insulated, fully shielded separable connectors (cable terminations). The protection level of the main circuit reaches IP67, providing resistance to condensation and short-term flood protection.
• Standard modular design
  It includes load switch units (L), load switch + fuse combination units (F), circuit breaker units (CB), busbar disconnector units (S), metering units (M), and busbar PT units (PT). Different modules can be combined in any configuration to form a ring network switchgear.
• Flexible expandable design
  The DSY-XGN-12 solid insulated switchgear can connect various standard modules through dedicated busbar connectors, enabling diverse power distribution design solutions.

Main technical parameters of solid insulated switchgear

Operating Environment:

• Altitude: ≤4000m (Please specify if the equipment will operate at an altitude higher than 1000m).
• Ambient temperature: Maximum temperature: +50°C; Minimum temperature: -40°C; The average temperature within 24 hours should not exceed 35°C.
• Ambient humidity: The average relative humidity over 24 hours should not exceed 95%; The average monthly relative humidity should not exceed 90%.
• Installation environment: The surrounding air should be free of explosive and corrosive gases. The installation location should be free from severe vibration or impact, and the pollution level should not exceed Grade III as specified in GB/T5582.
• Earthquake resistance: 9 degrees.

Basic Switchgear Module Introduction

L Switchgear: Load switch cabinet with earthing switch

Adopts vacuum load switch + three-position isolating switch combination mode, which is mainly used for the connection, branching and control of the incoming and outgoing lines of the ring network cable line. A reliable mechanical interlock is set between the vacuum load switch and the isolating switch to prevent misoperation.

Standard configuration and features: 630A busbar Vacuum load switch Manual operating mechanism of vacuum load switch Three-position disconnector Manual operating mechanism of three-position disconnector Position indicator of load switch and three-position disconnector Capacitive voltage indicator (with phase test hole) Padlocking device Switch equipment body Grounding busbar Operating handle Cable connection bushingOptional configuration and features: Electric operating mechanism of vacuum load switch Short circuit and grounding fault indicator Separable connector (cable connector) Lightning arrester Live grounding locking device for incoming line Key mechanical interlocking device Ring current transformer Auxiliary switch: Auxiliary contacts of vacuum load switch, 3NC, 3NO* Auxiliary contacts of disconnector, lNIC, lNO* Auxiliary contacts of grounding switch, lNIC, lNO*

CB Switchgear: vacuum circuit breaker unit

Using vacuum circuit breaker + three-position disconnector combination, is mainly used for the control, connection, branching and protection of cable lines and the control and protection of large-capacity transformers. A reliable mechanical interlock is set between the vacuum circuit breaker and the disconnector to ensure that the circuit breaker closes the load current. The circuit breaker unit is equipped with a current transformer and a digital protection relay, with unparalleled safety protection functions.

Standard configuration and features: 630A busbar Vacuum switch Electric operating mechanism for vacuum switch Three-position disconnector Manual operating mechanism for three-position disconnector Position indicator for vacuum switch and three-position disconnector Capacitive voltage indicator (with phase test hole) Padlocking device Switchgear body Grounding busbar Operating handle Cable connection bushing Current transformer (special for protection) Digital relay protection deviceOptional configuration and features: Short circuit and ground fault indicator Separable connector (cable connector) Lightning arrester Live grounding locking device for incoming line Key mechanical interlocking device Ring current transformer and meter Auxiliary switch: Auxiliary contacts of vacuum switch, 3NC, 3NO* Auxiliary contacts of disconnector, 1NC, 1NO* Auxiliary contacts of grounding switch, 1NC, 1NO*

F Switchgear– Combined electrical unit

mainly used for the control and protection of small and medium-sized distribution transformers.

Standard configuration and features: 630A busbar Vacuum load switch Manual operating mechanism of vacuum load switch Three-position disconnector/earthing switch at the beginning and end of fuse Manual operating mechanism of three-position disconnector/earthing switch at the beginning and end of fuse Load switch and earthing switch position indicator Capacitive voltage indicator (with core phase test hole) Padlocking device Switch equipment body Grounding busbar Operating handle Cable connection sleeve Fuse cylinderOptional configuration and features: Electric operating mechanism of vacuum load switch Short circuit and ground fault indicator Detachable connector (cable connector) Lightning arrester Key mechanical interlocking device High voltage current limiting fuse Ring current transformer and meter