Product Description
Product Description
Specifications
AC HV Disconnect Switch
1. Rated Voltage: 12kV
2. Three-phase AC 50/60Hz
AC HV Disconnect Switch
• Summary:
1. The GN30-12(D) disconnect switch is an indoor electrical device with a rated voltage of 12kV, and operates on three-phase AC 50/60Hz.
2. It is designed to make, break, and transfer currents for high-voltage electric apparatus in conditions with voltage but no load, ensuring safe and reliable operation.
3. The switch employs a rotary moving contact, expertly mounted on the switchgear for seamless integration and operation.
4. Additionally, it features a wall-through installation method, adding versatility and ease of use.
In the realm of electrical engineering, a disconnector, or disconnect switch, is an essential component used to ensure the complete de-energization of an electrical circuit for service or maintenance. These devices are pivotal in breaking circuits and are typically installed in electrical distribution centers and substations, where machinery must have its power source completely disconnected for adjustments or repairs. Disconnectors can be operated manually or via motor, and they may be paired with an earthing switch to ground the isolated section, thereby ensuring the utmost safety for equipment and personnel. High-voltage isolation switches prove indispensable in electrical substations, allowing for the isolation of critical apparatus such as circuit breakers, transformers, and transmission lines, especially during maintenance. Unlike load switches and circuit breakers, disconnectors are not designed for routine control of the circuit, as they lack the mechanisms needed to suppress electric arcs—phenomena that occur when conductors carrying high currents are interrupted. Therefore, they are classified as off-load devices, characterized by their minimal breaking capacity, and are meant to be engaged only once the current has been interrupted by another control device.
Product Parameters
| Technical parameter |
|
|
|
|
| Model |
Rated voltage (kV) |
Rated current |
Rated short-time withstand current |
Rated peak withstand current |
| (A) |
(kA/4s) |
(kA) |
| GN19-12/400-12.5 |
12 |
400 |
12.5 |
31.5 |
| GN19-12/630-20 |
12 |
630 |
20 |
50 |
| GN19-12/1000-31.5 |
12 |
1000 |
31.5 |
80 |
| GN19-12/1250-31.5 |
12 |
1250 |
31.5 |
80 |
| GN19-12C/400-12.5 |
12 |
400 |
12.5 |
31.5 |
| GN19-12C/630-20 |
12 |
630 |
20 |
50 |
| GN19-12C/1000-31.5 |
12 |
1000 |
31.5 |
80 |
| GN19-12C/1250-31.5 |
12 |
1250 |
31.5 |
80 |
| PARAMETERS |
|
|
|
| No. |
ITEM |
UNIT |
VALUE |
| 1 |
Rated voltage |
KV |
12/40.5 |
| 2 |
Rated frequency |
HZ |
50 |
| 3 |
Rated current |
A |
630/1250 |
| 4 |
Rated breaking current for rated active load |
A |
630/1250 |
| 5 |
Rated closing current |
A |
630/1250 |
| 6 |
5% rated breaking current for rated active load |
A |
62.5 |
| 7 |
Rated cable charging breaking current |
A |
25 |
| 8 |
1 min Power frequency withstand voltage: vacuum interrupter, same relative to ground, isolated interrupter |
KV |
42/68/95/110 |
| 9 |
Lightning impulse withstand voltage: phase-to-phase relative to ground/isolated interrupter |
KV |
75/125/185/215 |
| 10 |
Rated short-time withstand current (thermal stability) |
KA |
25 |
| 11 |
Rated short-circuit duration |
5 |
4 |
| 12 |
Rated peak withstand current (dynamic stability) |
KA |
63 |
| 13 |
Rated short-circuit closing current |
KA |
63 |
| 14 |
Mechanical life |
|
10000 |
| 15 |
Allowable wear thickness of vacuum arc-extinguishing chamber contact |
mm |
0.6 |
| 16 |
Manual operating torque |
Nm |
≤300 |
Company Profile
Zhejiang ChaoTai Complete Equipment Co., Ltd. is a trailblazing high-tech enterprise dedicated to advancing the field of electrical integration. Our esteemed company boasts a distinguished professional R&D, production, and service team with over 15 years of industry expertise, positioning us at the forefront of innovation and excellence.
Our premium product lineup encompasses high-voltage solid-state soft starters, state-of-the-art capacitor cabinets, comprehensive high and low voltage switchgear, sophisticated gas-insulated switchgear, and robust substations. These cutting-edge solutions are currently employed across diverse sectors, including energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, academic and research institutions, medical and pharmaceutical arenas, municipal commerce, water conservancy and hydropower, road traffic, and commercial as well as residential domains.
Our unwavering commitment to technological innovation is embodied in our 'smart manufacturing' philosophy, as we actively recruit top-tier technical talent to significantly bolster our company's core competencies. This strategy enables us to deliver unparalleled value to our clients, as we aspire to construct the industry's leading brand. Since our inception, we have made tremendous strides, evolving from nonexistence to prominence, and from mere presence to excellence. We steadfastly uphold the ethos of innovation and adhere to a contemporary business model that emphasizes survival through quality, market orientation, development through a sterling reputation, and heightened efficiency through judicious management. Our dedication to 'technology as our beacon, standardized management, exquisite quality, and customer satisfaction' permeates our quality and technical talent management practices, augmenting our competitive edge in the market. We are resolute in our mission to serve China's electricity and grid transmission and distribution sectors with ever-accelerating, more powerful, and higher aspirations. Integrity is the cornerstone of our operations, quality is our hallmark, service is our priority, and customer satisfaction is our unwavering tenet. In pursuit of excellence and continuous innovation, we are committed to sculpting an esteemed and trustworthy brand. Your recognition fuels our progress, and we extend our heartfelt gratitude to our loyal customers, past and present, for their unwavering support and affection. Senhang Technology eagerly anticipates collaborating with you to forge a better future.
Our Advantages
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.
Audited Supplier 
){kind=link}