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 advanced indoor electrical apparatus boasting a robust rated voltage of 12kV, designed for three-phase AC 50/60Hz systems.
2. This switch is meticulously crafted for making, breaking, and transferring currents for high voltage electrical apparatus under conditions of voltage presence yet no-load, ensuring seamless operations.
3. Featuring a sophisticated design, the switch employs a rotary moving contact conveniently mounted on the switchgear, enhancing operational ease and reliability.
4. Additionally, it incorporates a wall-through installation, optimizing space and providing streamlined connectivity.
In the realm of electrical engineering, a disconnector—or disconnect switch—is essential for ensuring that an electrical circuit is utterly de-energized for necessary service or maintenance. These switches are vital for circuit breaking purposes, frequently found in electrical distribution and substations where machinery's power source needs to be securely cut off for adjustments or repairs. Disconnectors may operate manually or via motorization and are often equipped with an earthing switch to ground isolated portions of the system for the utmost safety of both equipment and personnel involved. High-voltage isolation switches are particularly crucial in electrical substations, facilitating the isolation of apparatus like circuit breakers, transformers, and transmission lines during maintenance tasks. While disconnectors are not ordinarily used for regular circuit control, they serve paramount safety isolation functions. Unlike load switches and circuit breakers, disconnectors are devoid of mechanisms for suppressing electric arcs—which occur during the interruption of high-current conductors—making them off-load devices with minimal breaking capacity, intended to be operated only after current interruption 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. stands proudly as a high-tech enterprise dedicated to the specialized field of electrical integration. With a professional R&D, production, and service team enriched by over 15 years of industry expertise, we are poised to lead the way with innovation and excellence.
Our premier product line features high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. Presently, our solutions are extensively deployed across diverse sectors including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academic and research institutions, medical and pharmaceutical realms, municipal commerce, water conservancy, hydropower, road traffic, alongside both commercial and residential settings.
We are steadfast in our commitment to technological innovation coupled with the philosophy of 'smart manufacturing.' By integrating top-tier technical talent, we consistently enhance our core competitiveness and deliver unparalleled value to our customers, striving to establish a leading brand presence in the industry. Since our inception, Zhejiang ChaoTai has transformed from a nascent entity into a beacon of excellence. Our journey follows a modern business trajectory defined by quality survival, market orientation, reputation-driven development, and management-led efficiency. We uphold 'technology as our guide, standardized management, superior quality, and customer satisfaction' as the cornerstones of our quality and technical talent management strategy. Our aim is to fortify the market competitiveness of the company while ambitiously driving the transmission and distribution domains of China's electric power and grid with accelerated, robust, and elevated objectives. Integrity remains our foundation, quality is our absolute priority, service is our hallmark, and customer satisfaction is our perpetual creed. Our pledge to pursue excellence and foster continuous innovation solidifies our vision of building a trustworthy brand. Your recognition fuels our passion, and we extend our heartfelt gratitude to both our new and loyal customers for their unwavering support. Together with Senhang Technology, we eagerly anticipate creating a brighter future hand in hand.
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}