SVR-12 solid insulation vacuum ring network cabinet (compact switch cabinet)

SVR-12 type homogenous insulation vacuum ring main unit is a new type of medium voltage switchgear newly developed by our company according to the development needs of smart grid. This series of products integrates the switch unit and the primary diversion circuit through epoxy resin casting. Each ring main unit unit has three-phase phase units, which are connected by fully insulated busbars. All primary conductive parts are sealed together, especially SF6 gas.

Category: Product Center

key word:

solid insulation vacuum ring network cabinet

Hotline:

+86-514-83900666

Related products

Product message

SVR-12 solid insulation vacuum ring network cabinet (compact switch cabinet)

Overview
This series of products integrates the switch unit and the primary diversion circuit through epoxy resin casting. Each ring main unit unit has three-phase phase units, which are connected by fully insulated busbars. All primary conductive parts are sealed together, especially SF6 gas.
The ring network cabinet can be configured with three-phase linkage permanent magnet mechanism or spring mechanism integrated intelligent control and protection unit, which can quickly cut off fault current and isolate faults. Smart grid requirements.
Suitable for substation 10kV outlet interval of power system, distribution switch station, user boundary ring network cabinet, user substation, ring network switch station, community, road, government department, hospital , petrochemical, metallurgy, mining, etc.

● IEC60298	AC metal-enclosed switchgear and control equipment above 1kV and below 52kV
● GB3906	3.6kV-40.5kV and below AC metal-enclosed switchgear and control equipment
● CB/T 11022	Common technical requirements for high voltage switchgear and controlgear standards
● CL/T593	Common technical requirements for high voltage switchgear and controlgear standards
● CB1984	High Voltage AC Circuit Breaker
● GB1985	High-voltage AC isolating switch and grounding switch
● GB/T4208	Enclosure rating (IP code)
● DL/T721	Distribution network automation system remote terminal
● GB/T 17626	Electromagnetic Compatibility Test and Measurement Technology
● GB/T 14598	Measurement of electrical disturbance test of relays and protective devices

Model description

111

Technical parameters
Technical parameters of circuit breaker body

Project	Parameters
Rated voltage	12kV
Rated current	630/1250V
Rated (1min) power frequency withstand voltage (phase-to-phase and ground/fracture)	42/48kV
Rated lightning impulse withstand voltage (phase-to-phase and ground/fracture)	75/85
Rated short-circuit breaking current	20/25kA
Rated short-circuit making current (peak)	50/63kA
Thermal stabilization current (4s)	20/25kA
Dynamic stable current (peak value)	50/63kA
Rated short-circuit current breaking times	30 times
Rated frequency	50Hz
Protection level	IP4X
Itinerary	12±1mm
Contact spacing	9±1mm
Overtravel	3±1mm
Close time	30-50ms
Opening time	5-25ms
Opening and closing at different periods	≤2ms
Close bounce	≤2ms
Average opening speed	1.1±0.2m/s
Average closing speed	0.6±0.2m/s
Mechanical life	10,000 times
Main circuit resistance (unit-unit)	≤260μΩ

Technical parameters of isolation/earthing switch

Project	Parameters
Rated voltage	12kV
Rated frequency	50Hz
Rated current	630/1250A
Rated 1min power frequency withstand voltage	Isolation switch (phase-to-phase, phase-to-ground/fracture): 42/48kV
Rated lightning impulse withstand voltage	Isolation switch (phase-to-phase, phase-to-ground/fracture): 75/85kV
Rated short-time withstand current	20/25kA
Rated Short Circuit Duration	4s
Rated peak withstand current	50/63kA
Mechanical life	2000 times

Use Environment
Ambient air temperature: -40℃~+70℃
Working environment humidity: 0-95%
Altitude of work place: ≤2000m
There is no obvious corrosive and flammable gas or smoke pollution in the surrounding air.
If the user cannot meet the above environmental conditions, please contact our company.

Technical Features
(1) Environmental protection, small size (width, depth and height 400 x 910 x 1620, only 1/4 of the volume of the traditional KYN28 cabinet, weight 200kg, only 1/2 of the traditional KYN28 cabinet) easy to install;

(2) Modular design is convenient for installation, debugging and maintenance;

(3) The unit structure is easy to expand and can be expanded infinitely;

(4) It is convenient to install the busbar on the top, and it is easy to expand;

(5) Reliability (mechanism, main circuit protection level P67);

(6) Safety (three-phase split, visible isolation fracture, grounding closure);

(7) Long life, maintenance-free (cooling and heating cycle, small partial discharge, airflow channel);

(8) The product can form a demarcation cabinet solution, with a cable-type watchdog function, to realize the user demarcation protection function, and to connect and protect the smart grid.

111

Typical plan

1111