Product Description
The ring main unit is composed of bus room, load switch (or circuit breaker room), cable room, operating mechanism, interlocking mechanism and low-voltage control room, as well as measurement or metering circuit, etc., and each compartment is divided by steel plate to avoid failure affecting the adjacent room.
The bus room is arranged in the upper part of the cabinet body, and the main bus bars are connected together in the bus room and run through the whole row of switch cabinets. The busbar is arranged horizontally for easy expansion.
The load switch room is equipped with a load switch, the shell of the load switch is made of epoxy resin, filled with SF6 gas as arc extinguishing and insulating medium, and two transparent hot-pressed plastic end covers are arranged at the leading end of the operating shaft, through which the contact state can be observed. SF6 gas density meters or gas density meters with alarm contacts can be installed in the switch room according to customer requirements.
The circuit breaker room is located in the middle of the cabinet, which can be equipped with a special vacuum circuit breaker or SF6 circuit breaker according to customer needs, and its breaking capacity can meet the operation of normal switching and branch network, as well as breaking short-circuit current under special circumstances, etc., vacuum circuit breaker is especially suitable for frequent operation of network systems. The circuit breaker is equipped with a spring operating mechanism, which has the function of reclosing, and the action is reliable and the service life is long.
The cable room is mainly used for the connection of cables, so that the single-core or three-core cables can be connected with the simplest unshielded cable heads, and at the same time, the ample space can also accommodate components such as arresters, current transformers, and lower grounding switches. The cabinet door is designed as standard with viewing windows and safety interlocks, and the cable compartment floor is equipped with a sealing cover and a cable clamp of appropriate size with brackets. The front door frame of the cable room floor can be removed to facilitate cable installation.
The interlocking low-pressure chamber also functions as a control screen. The low-voltage chamber is equipped with a spring-operated mechanism and a mechanical interlocking device with a position indicator, and can also be equipped with auxiliary contacts, trip coils, emergency tripping mechanisms, capacitive live display devices, key locks and electric operating devices, while the low-voltage chamber space can also be used for the installation of control loops, recording instruments and protective relays, and the 750mm wide cabinet is equipped with two identical low-voltage chambers, which can be equipped with more accessories.
ZHRM6-12/24 fully insulated aerated cabinet has obtained the type test report in the National High Voltage Electrical Appliances Test Center and has been listed as a high-tech product in Zhejiang Province.Widely used in 10kV / 20kV power distribution system, urban and rural users of all types of power distribution system preferred switch products.
The switchgear is modular unit mode, which can be combined according to different purposes;It is divided into two categories: fixed unit combination and expandable unit, which can meet the needs of various substations for flexible use of compact switchgear.
The ZHRM6-12/24 fully insulated inflatable cabinet is a fully sealed system with all live parts and switches enclosed in a stainless steel housing.
The whole switchgear is not affected by external environmental conditions, thus ensuring operational reliability and personal safety, and achieving maintenance-free.By choosing extensible busbars, any combination can be realized to achieve full modularity.Extended bus safety insulation and shielding, to ensure high reliability and safety.ZHRM6-12/24 pneumatic switchgear can also provide a TV-like automation solution, forming the concept of an intelligent switch and minimizing on-site installation and commissioning work.
ZHRM6-12/24 fully insulated inflatable cabinet is divided into non-extensible standard configuration and extensible standard configuration.Because of the combination of full module and half module as well as its own expansibility, it has very special flexibility.
ZHRM6-12/24 fully insulated aerated cabinet is in compliance with GB standard.
The design life is more than 30 years for indoor (40 ° C) and outdoor (-50 ° C) operation.
| project |
units |
C module |
F module |
V module |
CB module |
| Load switch |
Combination electric appliance |
vacuum switch |
Isolation/grounding switch |
vacuum circuit breaker |
Isolation/grounding switch |
| The rated voltage |
KV |
12 |
12 |
12 |
12 |
12 |
12 |
| Rated frequency |
HZ |
50 |
50 |
50 |
50 |
50 |
50 |
| Power frequency withstand voltage (phase/fracture) |
KV |
42/48 |
42/48 |
42/48 |
42/48 |
42/48 |
42/48a |
| Lightning shock withstand voltage |
KV |
75/85 |
75/85 |
75/85 |
75/85 |
75/85 |
75/85 |
| Rated current |
A |
630 |
infuse 1) |
630 |
|
1250/630 |
|
| Breaking ability: |
|
|
|
|
|
|
|
| Rated closed loop breaking current |
A |
630 |
|
|
|
|
|
| Rated cable charging break current |
A |
10 |
|
|
|
|
|
| Rated short circuit closing current (peak) |
A |
50 |
80 |
|
|
|
|
| Rated peak tolerable current |
kA |
50 |
|
|
|
|
|
| Rated short-time tolerable current |
kA/35 |
20 |
|
|
|
|
|
| Rated short circuit breaking current |
kA |
|
31.5 |
20 |
|
25 |
|
| Rated transfer current |
A |
|
1700 |
|
|
|
|
| Use the maximum current of the fuse |
A |
- |
125 |
|
|
|
|
| Loop resistance |
-n |
≤300 |
≤600 |
|
|
|
|
| Mechanical life |
next |
5000 |
3000 |
5000 |
2000 |
5000 |
2000 |
| Note: Depends on current rating of the fuse |
Main product
Company Profile
Zhejiang ChaoTai Complete Equipment Co., Ltd. is a high-tech enterprise focused on the field of electrical integration. We have a professional R&D, production, and service team with over 15 years of industry experience.
Our main products include high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. Currently, our products are widely used in various fields such as energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, universities and research institutions, medical and pharmaceutical sectors, municipal commerce, water conservancy and hydropower, road traffic, and commercial and residential areas.
We adhere to technological innovation and the development philosophy of "smart manufacturing," vigorously introducing high-level technical talents to comprehensively enhance the company's core competitiveness, while providing the most valuable services to our customers and striving to build the best brand in the industry. Since its establishment, the company has continuously made progress, evolving from nothing to something, and from something to excellence. We insist on innovation and follow a modern business path of survival through quality, market-oriented, development through reputation, and efficiency through management." We are committed to "technology as the guide, standardized management, excellent quality, and customer satisfaction" in our quality and technical talent management, enhancing the company's market competitiveness, and striving to serve the transmission and distribution fields of China's electric power and grid with faster, stronger, and higher goals. Integrity is fundamental, quality is paramount, service is supreme, and customer satisfaction is our eternal tenet. Pursuing excellence, continuous innovation, and puilding a trustworthy brand are the company's unwavering development goals. Your recognition is our driving force. We thank all our new and old customers for their support and affection, and Senhang Technology looks forward to working hand in hand with you to create a better future.
Our Advantages
Certifications
After Sales Service
Packaging & Shipping
FAQ
Q1. Are you a factory or trading company?
A.We are a factory.
Q2. Where is your factory located? How can I visit there?
A. Our factory is located in Wenzhou City, Zhejiang Province, China. You can fly to Longwan airport directly. All our clients,from home or abroad, are warmly welcome to visit us!
Q3. What's the payment term?
A. We accept TT. 30% deposit and 70% before shipment, Western Union, L/C At Sight is ok! We'll l show you the photos of the products and packages before you pay the balance.
Q4. Tell me the standard of package? What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons, If vou have leaallyl registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q5. Would you accept to use our logo?
A. If you have good quantity,it absolute no problem to do OEM.
Q6. How about the transport?
A. If the number of aoods is small we usually use TNT.DHL.FEDEX.EMS and some express voull offered. If the number of the goods is big usually we use the FWD you offered or we provided. Either by sea or by air is OK.
Q7. What is your Production lead time /delivery time?
A: Generally, it will take 25 to 30 days after receivina vour advance payment.
The specificl delivery time depends on the items and the quantity of your order. Silicone rubber's reqular product is 1,000/ week, Porcelain's need 2-3 weeks about 1000 pcs.
Q8. How do you make our business long-term and good relationship?
A:l. We keep aood auality and competitive price to ensure our customers benefit:
A: 2. We respect every customer as our friend and we sincerely do business and make friendsl with them, no matter where they come from.
A: 3.Most goods we have the type report according the IEC STANDARD
Q9. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the courier cost.
Q10. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q11. What is your terms of delivery?
A: EXW, FOB, CFR, CIF.
Q12.What certificates do you have?
A:ISO9001,OHSAS18001,ISO14001 certificate and Type test report of product.
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