Environmental protection High Voltage Ring Main Unit is a ring network equipment system suitable for 10KV and above power grids. Compared with ordinary gas-filled cabinets, this type avoids the use of SF6 greenhouse gases, meets the requirements of customers for environmental protection, and also realizes the automatic distribution of power systems.
Zi Kai High voltage ring main unit Module classification:
According to the needs of different functions, the basic unit plan is divided into: circuit breaker cabinet (referred to as V cabinet), load switch cabinet (referred to as C cabinet), voltage
Functional unit
Circuit breaker cabinet
Load switch cabinet
Voltage transformer cabinet
Measurement cabinet
Primary plan drawing
Overall dimension
Lateral expansion
420×925×2000
Top spreading
420×925×1950
(Width x depth x height)
Lateral expansion
420×925×2000
Top spreading
420×925×1950 (Width x depth x height)
Lateral expansion
600×925×2000
Top spreading
600×925×1950 (Width x depth x height)
Lateral expansion
750×850×2000
Top spreading
750×850×1950 (Width x depth x height)
Zi Kai High voltage ring main unit Outline dimensions
Zi Kai High voltage ring main unit Technical parameter
number
Technical parameter
unit
Technical parameter
1
Rated voltage
kV
12
2
Rated frequency
Hz
50
3
Rated current
A
630
4
Rated short-circuit breaking current
kA
20
5
Rated short-circuit closing current
kA
50
6
Rated short-time withstand current and holding time
Main loop (4s)
kA
20
Ground switch (4s)
20
Ground circuit (4s)
17.4
7
Main loop
kA
50
Ground switch
50
Ground loop
43.5
8
Insulation test (fracture, to ground)
1min power frequency withstand voltage (fracture/ground)
kV
48/42
Lightning impulse (fracture/ground)(Peak value)
85/75
9
Main loop resistance
μQ
≤150
10
Composition of gases for insulation
Environmentally friendly gas (nitrogen, dry air)
11
Environmental gas minimum working pressure/rated working pressure (20℃/ gauge pressure)
MPa
0.01/0.02
12
Protection level: Cabinet/air box
IP4X/IP67
Zi Kai High voltage ring main unitUse environment
Low temperature area: Without SF6 gas, it can work normally at -45 ° C.
Sandstorm area: high protection level of environmental protection gas box (IP67), special treatment of control room, suitable for long-term operation in sandstorm environment.
Coastal humid area: air box sealed moisture, salt spray corrosion resistance, suitable for long-term use along the coast.
High environmental protection area: The environmental protection gas holder abandonSF6, no environmental and health hazards.
Smart grid: Optional intelligent controller for remote monitoring and operation, flexible control of switchgear and substation
Zi Kai High voltage ring main unit Application
Application
Environmental protection: The use of environmentally friendly materials and design to reduce the impact on the environment.
Compact structure: small footprint, easy to install and maintain.
High reliability: The use of advanced manufacturing processes and high-quality materials to ensure long-term stable operation of the equipment.
High degree of automation: With automatic power distribution function, improve the reliability and flexibility of power supply.
Easy maintenance: reasonable structure design, easy to repair and maintenance work.
Zi Kai High voltage ring main unit Details
certificates
FAQ
1、What is your packaging standard?
Usually we use standard foam and carton packaging. If you have special requirements, we can also meet your requirements.
2、Why do you buy from us instead of other suppliers?
More than 10 years experience in design and manufacture of high voltage switchgear accessories. It is one of the largest star suppliers in the industry, and has won international and domestic praise, and has been shortlisted for the National Grid.
If you have any enquiry about quotation or cooperation, please feel free to email or use the following inquiry form. Our sales representative will contact you within 24 hours.
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