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 apparatus designed for environments with a rated voltage of 12kV, facilitating operations in three-phase AC systems of 50/60Hz.
2. This switch efficiently performs tasks of breaking, making, and transferring current for high-voltage electric apparatuses, specifically under conditions where there is voltage but no load.
3. Featuring a rotary moving contact, the switch is seamlessly integrated into the switchgear, providing ease of access and operation.
4. Additionally, it incorporates wall-through installation, enhancing its versatility and adaptability.
In the realm of electrical engineering, a disconnector, also known as a disconnect switch or isolator switch, plays a crucial role in ensuring that an electrical circuit is fully de-energized for service or maintenance tasks. These devices are employed solely for the purpose of circuit breaking and are prominently used in areas such as electrical distribution and substations, where machinery needs its power source cut off for adjustments or repairs. Disconnectors are available in both manual and motor-operated versions and are often complemented with an earthing switch to ground the isolated segment, ensuring the utmost safety for both equipment and personnel. High-voltage isolation switches are essential in electrical substations, enabling the isolation of key apparatus like circuit breakers, transformers, and transmission lines for maintenance. Primarily designed for safety isolation rather than routine control of circuits, disconnectors differ from load switches and circuit breakers due to their lack of electric arc suppression mechanisms, which are necessary when interrupting conductors carrying high currents. Consequently, disconnectors are categorized as off-load devices with minimal breaking capacity, intended to be opened only after the current has been interrupted by a different 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. stands as a beacon of innovation in the realm of electrical integration. As a high-tech enterprise, we boast a seasoned team dedicated to research, development, production, and service, fortified by over 15 years of industry expertise.
Our product suite includes state-of-the-art high-voltage solid-state soft starters, advanced capacitor cabinets, versatile high and low voltage switchgear, cutting-edge gas-insulated switchgear, and robust substations. These products serve diverse sectors, from the energy and chemical industries to metal smelting, electric power grids, and beyond—spanning industrial manufacturing, academic and research institutions, medical and pharmaceutical fields, and extending to municipal commerce, water conservancy, hydropower, road traffic, and both commercial and residential zones.
Our commitment to technological innovation is unwavering, guided by the ethos of 'smart manufacturing.' We actively recruit top-tier technical talent to bolster our core competitiveness, delivering unparalleled value to our clientele while aspiring to create the industry's premier brand. Since inception, our journey has been marked by progress, transforming from humble beginnings to achieving outstanding excellence. We embrace innovation, adhering to a path of quality-driven survival, reputation-driven development, market-oriented strategies, and management-driven efficiency. Our pledge to 'technology as the guide, standardized management, excellent quality, and customer satisfaction' underpins our quality and talent management processes, enhancing our market edge and striving to serve China's electric power and grid domains with ambitious goals of speed, strength, and superiority. Our foundation is integrity, quality is our priority, service is paramount, and customer satisfaction is our unwavering principle. Pursuing excellence, fostering continuous innovation, and cultivating a reliable brand are our steadfast development pursuits. Your recognition fuels our drive. We extend heartfelt gratitude to all our esteemed customers, past and present, for their enduring support and affection. Zhejiang ChaoTai looks forward to forging a brighter future together with you.
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.
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