Product Description
Product Description
Specifications
AC HV Disconnect Switch
1. Rated Voltage: 12 kV
2. Three-phase AC 50/60 Hz
AC HV Disconnect Switch
•Summary:
1. The GN30-12(D) disconnect switch is an advanced indoor electrical apparatus with a rated voltage of 12kV, designed for three-phase AC 50/60Hz applications.
2. Primarily utilized to make, break, and transfer current in high-voltage electric apparatus, it performs efficiently in scenarios with applied voltage and no-load conditions.
3. The switch features a sophisticated rotary moving contact system, facilitating easy installation on switchgear.
4. It incorporates a wall-through installation design to ensure seamless integration and operation.
In the realm of electrical engineering, a disconnect switch, also known as an isolator switch, plays a vital role in guaranteeing that an electrical circuit is completely de-energized for maintenance or service. These devices are exclusively utilized for circuit disconnection and are typically found in electrical distribution and substation settings, where machinery requires the removal of its power source for adjustments or repairs. Disconnectors, which can be manually or motor-operated, may be used alongside an earthing switch to ground isolated system portions, thereby ensuring the utmost safety for both equipment and personnel. High-voltage isolation switches serve a critical function in electrical substations, enabling the isolation of key apparatus like circuit breakers, transformers, and transmission lines for essential maintenance. Unlike load switches and circuit breakers, disconnectors do not include arc suppression mechanisms, limiting them to off-load activities with minimal breaking capacity, and are designed to be opened 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. is a pioneering high-tech enterprise specializing in the domain of electrical integration. With a dedicated professional R&D, production, and service team boasting over 15 years of rich industry experience, we are at the forefront of technological advancement.
Our extensive product range includes high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These products are renowned for their widespread application across diverse industries such as energy and chemicals, metal smelting, electric power grids, industrial manufacturing, educational institutions, medical and pharmaceutical sectors, municipal and commercial sectors, water conservancy and hydropower, transportation, and both commercial and residential sectors.
We are deeply committed to technological innovation and embrace the philosophy of 'smart manufacturing.' By attracting top-tier technical talents, we continually enhance our core competencies, providing unparalleled value to our esteemed customers. Our relentless pursuit of excellence seeks to forge the industry's best brand. Since inception, we have consistently progressed, transitioning from inception to prominence, and from prominence to excellence. Our growth strategy is rooted in quality, reputation, and efficient management, always keeping customer satisfaction at the forefront. We are dedicated to 'technology as our compass, standardized management, superior quality, and customer satisfaction.' This commitment drives our efforts to serve China's electric power and grid sectors with unmatched speed, strength, and ambition. Integrity, unparalleled quality, exceptional service, and customer satisfaction remain our eternal tenets. Our unwavering development goals focus on pursuing excellence, fostering continuous innovation, and building a brand that earns trust. Our clients' recognition fuels our passion. We extend heartfelt gratitude to both new and long-standing customers for their unwavering support, and Zhejiang Chaotai eagerly anticipates a future of collaboration and shared success.
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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