1. Five pressures, no risk of leakage
The world's first technology to eliminate hidden dangers of gas leakage in products under pressure, and truly maintenance-free products
2. No SF6 greenhouse gas
The main insulation medium is natural air, and the greenhouse gas SF6 which is harmful to human body is not used, which is green and environmentally friendly.
3. No solid insulation wrap
Do not use solid insulation technical solutions that cause penetrating insulation failure and surface pollution flashover and creepage due to partial discharge
4. Atmospheric sealing
It adopts a fully sealed and fully insulated structure to improve the adaptability to the environment, and is stable, reliable, and effective during the entire life cycle.
5. Pressure balance device
The balance device with filtering function isolates the dust and dirt in the operating environment, and fundamentally prevents the occurrence of pollution flashover failures
6. Compact and small
Through atmospheric sealing technology, the product has the characteristics of high reliability, maintenance-free, compact and miniaturization, and completely replaces the traditional SF6 ring network cabinet.

Our RMU cabinets are widely used in urban ring network power supply systems due to their small space occupation, long life, maintenance-free, safe and reliable characteristics. The ring main unit in the cabinet can be equipped with SF6 ring main unit, environmental gas (N₂) ring main unit, solid insulation ring main unit, and atmospheric air ring main unit. Automatic laser welding and helium leak detection equipment are used to ensure that the gas cabinet protection level reaches IP67. Cooperating with automated terminals, functions such as protection, remote control, telemetry, automation, and centralized line loss management can be realized. Factory strict performance testing and running-in test before delivery to ensure the quality of each product.

FAQ

Q: Are you the manufacturer or trader?
A: We are both manufacturer & trader. We have our own manufacturer named TIANYI TONGYI ELECTRIC CO.,LTD, who have 27 years experience in electric industry. It covers an totally area of 117,000 m2 with 300 employees, also is a qualified supplier of China National Nuclear Corporation(CNNC) and main supplier for State Grid & China Southern Power Grid.

Q: What is your after-sales service?
A: We always provide free online service and technical support within 24 hours. 18 months warranty for customers.

Q: What is your delivery time?
A: Normally 25~35days. It depends on the order quantity and season. We have very strong capacity to produce top quality products, please inquiry us if you have any questions.

Q: What is the quality warranty time?
A: We have quality certificate CCC, CQC, ISO9001, CE ... Meanwhile, we can provide 18 months warranty for our products. Free online service and technical support within 24 hours is always provided to our customers.

Q: Do you accept ODM and OEM?

A: Yes. We have professional R & D teams to update and develop the latest technology. We also can support ODM or OEM, please send us details drawing to discuss.

Q: What is your payment terms?
A: Generally there are two payment terms:

1.  30% advance payment via T/T as a deposit, balance 70% against the shipping documents
2.  Irrevocable L/C at sight

Q: If I want to visit you, how to go?
A: Our factory is located in Luoyuan County, Fuzhou City. Details address is Songshan Area, Taiwan Investment Zone, Luoyuan County, Fuzhou City, Fujian Province,China.

1. The nearest airport is Fuzhou Airport, if you come by air, please arrive in Fuzhou Airport, it takes 1 hour from the airport to our factory
2. The nearest train station is Luoyuan Station, if you come by train, please arrive in Luoyuan Station, it takes only 5 minutes to our factory.

Anyway, please contact us in advance, we will send the car to the airport or train station to pick you up.Sincerely welcome you to come and visit us.

Q: Do you need agents?
A: Yes, we welcome you to be a partner. Welcome to contact us for more information.