The Ring Main Unit Switchgear (hereinafter referred to as "ring main unit") is a new product designed and developed by JUCEG, utilizing advanced international techniques. Its technical specifications fully comply with IEC62271 - 200 and GB3906 standards.
Characterized by its compact size, lightweight design, flexible operation, easy maintenance, and stable and reliable performance, the 12KV Ring Main Unit Switchgear Panel has comprehensive interlock protection and an IP3X protection rating. Consequently, it is an ideal solution for main grid renovation projects.
This product is mainly intended for use in 50Hz three - phase AC networks for power reception and distribution. It is well - suited for urban power grid construction and upgrades, industrial and mining enterprises, high - rise buildings, and public utilities. Whether used as a loop power supply unit or terminal equipment, it enables power distribution, control, and protection of electrical assets, and is also suitable for installation within pre - assembled substations.
|
No. |
Item |
Unit |
Technical Parameter |
|
|
1 |
Rated voltage |
KV |
12 |
|
|
2 |
Rated current |
A |
1250 |
|
|
3 |
Rated short-time power frequency withstand voltage (effective value) |
KV |
42 |
|
|
4 |
Rated lightning impulse withstand voltage (peak value) |
KV |
75 |
|
|
5 |
Rated short-circuit breaking current (effective value) |
KA |
31.5 |
|
|
6 |
Rated short-circuit making current (peak value) |
KA |
80 |
|
|
7 |
Rated thermal stability current (effective value) |
Main circuit（4S) |
KA |
31.5 |
|
Ground loop（4S) |
KA |
27.3 |
||
|
8 |
Rated dynamic stability current (peak value) |
Main circuit |
KA |
80 |
|
Ground loop |
KA |
68.3 |
||
Utilize a 316L stainless steel substrate and a nano-ceramic coating.
Supporting the free selection of components such as ABB/Siemens.
German-imported spraying system with <5μm coating uniformity error and <0.3% spray defect rate.
Features rationally designed pressure relief channels and a "Five Preventions" mechanical interlock system to ensure operator safety.
South Africa Project
We provided electrical engineering support for this project, including the panel design and manufacture.
Australia Project
We supply VCB, MV switchgear and other electrical products, and assist with technical support.
Philippines Project
We supply electrical panels and provide technical assistance.
The 12KV Ring Main Unit Switchgear Panel features an extremely compact footprint, allowing for flexible deployment in densely populated urban substations or space - constrained pre - assembled transformer stations. Its fully - enclosed, integral construction ensures exceptional operational reliability by effectively isolating all primary live components from adverse environmental factors, such as fluctuating humidity, airborne contaminants, and high - altitude dielectric stress.
Designed with a primary focus on personnel and asset protection, the unit reduces the risk of arc flash propagation and poses no fire hazard. Operational noise levels are minimized to ensure quiet operation in residential or commercial areas. The sturdy housing of the 12KV Ring Main Unit Switchgear Panel, along with advanced interlocking protocols, ensures a safe operating environment free from exposure to live parts.
This product strictly adheres to both IEC and GB requirements and has passed comprehensive type tests. It is accompanied by complete third - party certification documents upon leaving the factory to ensure seamless compliance for network entry.Relying on fully sealed welding technology and strict quality control procedures such as helium mass spectrometry leak detection, the 12KV Ring Main Unit Switchgear Panel has a designed lifespan of over 30 years and an extremely low failure rate.Meanwhile, its structure supports non - standard in - depth customization for protection configurations, transformer ratios, and inlet/outlet line methods. This can not only adapt to complex renovation scenarios but also effectively reduce on - site civil construction renovation costs.
Are you factory or trading company?
Factory, we can guarantee our price is reasonable and competitive.
When can I have the price?
Usually we quote within 24 hours after receiving your inquiry.
Can we print our logo and company name on products?
Yes, of course, we accept OEM.
What is the lead time?
The lead time depends on the quantities ordered, normally within 15-20 days after receiving the payment.
How's your quality control process?
All products will be inspected starting from accessories, and will be carried out with routine tests before leaving our factory.
How to solve the quality problems after sales?
Take photos or video of the quality problems and send to us for our checking and confirming, and we will make a satisfied solution for you within 1-3 days.
What's the warranty time?
12 months from shipping date.
Address
1-3/F, Building C, No. 288 Weiqi Road, Yueqing Economic Development Zone, Yueqing, Wenzhou, Zhejiang Province, China
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