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 a sophisticated indoor electrical apparatus with a rated voltage of 12kV, operating on a robust three-phase AC 50/60Hz system.
2. It excels in making, breaking, and transferring currents for high-voltage electrical apparatus under voltage and no-load conditions, ensuring reliability and safety.
3. This innovative switch employs a rotary moving contact design, seamlessly mounted on switchgear for easy accessibility and operation.
4. It also features a wall-through installation method, enhancing its adaptability and space efficiency in various setups.
In the realm of electrical engineering, a disconnector, also known as a disconnect switch or isolator switch, plays a crucial role in ensuring electrical circuits are fully de-energized for service or maintenance. These switches are essential for circuit breaking, often utilized in electrical distribution and substations, where machinery requires power removal for adjustments or repairs. Disconnectors, whether manually or motor-operated, can be paired with earthing switches to ground isolated portions, ensuring the highest safety standards for both equipment and personnel. High-voltage isolation switches are indispensable in electrical substations, facilitating the isolation of apparatus like circuit breakers, transformers, and transmission lines for maintenance purposes. Intended solely for safety isolation, these disconnectors do not serve regular circuit control functions. Unlike load switches and circuit breakers, disconnectors lack arc suppression mechanisms, making them off-load devices with minimal breaking capacity. They are designed to be operated only after current interruption by another device, emphasizing their role in safe and effective circuit management.
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 at the forefront of electrical integration, emerging as a high-tech enterprise with a legacy of over 15 years in the industry. Our elite R&D, production, and service teams are dedicated to pushing the boundaries of innovation and delivering unparalleled expertise.
Our suite of industry-leading products spans high-voltage solid-state soft starters, capacitor cabinets, versatile high and low voltage switchgear, gas-insulated switchgear, and comprehensive substations. These exceptional offerings find their applications across a diverse spectrum, from energy, chemical, and metal smelting sectors to electric power grids, industry, academia, healthcare, municipal commerce, water conservancy, road traffic, and even across commercial and residential domains.
Our unwavering commitment to 'smart manufacturing' and technological innovation is the backbone of our development philosophy. By actively recruiting top-tier technical talents, we aim to enhance our core competitiveness and deliver unmatched value to our clientele, aspiring to establish the leading brand in the industry. Since inception, Zhejiang ChaoTai has transformed from a nascent entity to a paragon of excellence through relentless innovation. We uphold a modern business strategy, leveraging quality for survival, markets for orientation, reputation for development, and management for efficiency. Anchored by the guiding principles of 'technology leadership, standardized management, superior quality, and customer satisfaction,' our mission is to elevate our market presence and serve China's electric power transmission and distribution sectors with unmatched speed, strength, and ambition. Our ethos is built on the pillars of integrity, quality, service, and customer satisfaction, driving our pursuit of excellence, innovation, and a credible brand. Your recognition fuels our progress, and we extend our gratitude to all our patrons. Zhejiang ChaoTai looks forward to forging a prosperous future together.
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}