Product Description
Product Description
Specifications
AC HV Disconnect Switch
1. Rated Voltage: 12kV - Designed for high-performance applications, ensuring reliable operations even under demanding conditions.
2. Three-Phase AC 50/60Hz - Engineered to accommodate diverse electrical systems with seamless integration and efficiency.
AC HV Disconnect Switch
• Summary:
1. The GN30-12(D) disconnect switch is a robust indoor electric apparatus with a rated voltage of 12kV, operating on three-phase AC50/60Hz. It provides unmatched reliability for safe and efficient operations.
2. Specifically designed to make, break, and transfer currents in high voltage electric apparatus under voltage and no-load scenarios, ensuring optimum performance and safety.
3. Featuring an innovative rotary moving contact mounted easily on the switchgear, it promises simple installation and long-lasting dependability.
4. Utilizes wall-through installation, offering practical solutions that save space while enhancing functionality.
In electrical engineering, a disconnector, also known as a disconnect switch or isolator switch, is essential for ensuring that an electrical circuit is completely de-energized for service or maintenance. Primarily used for breaking the circuit, these switches are often found in electrical distribution and substations, where it is crucial to remove the driving power source for machinery during adjustments or repairs. Disconnectors can be operated manually or by motor and are often paired with earthing switches to ground isolated sections, guaranteeing the safety of equipment and personnel. High-voltage isolation switches play a vital role in substations, allowing for the isolation of apparatus such as circuit breakers, transformers, and transmission lines during maintenance. While disconnectors are not meant for the regular control of circuits, their primary purpose is safety isolation. Unlike load switches and circuit breakers, disconnectors do not have arc suppression mechanisms and are off-load devices with a minimal breaking capacity, intended only to be opened after 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. stands as a beacon of innovation in the field of electrical integration. With over 15 years of expertise, our high-tech enterprise boasts a dedicated R&D, production, and service team, bringing unparalleled solutions to the industry.
Our flagship offerings include high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, and gas-insulated switchgear, among others. These products find extensive applications across diverse industries such as energy, chemicals, metal smelting, electric power grids, industrial manufacturing, academia, healthcare, municipal commerce, water management, infrastructure, and both commercial and residential spaces.
We are firmly committed to the philosophy of 'smart manufacturing' through relentless technological innovation. By attracting top-tier technical talent, we significantly boost our core competitiveness, striving to deliver unparalleled customer value. Our journey is one of transformation—from inception to industry excellence—anchored in innovation and quality. Operating on a modern business ethos, we prioritize quality, market adaptation, reputation, and management-driven efficiency. Our overarching goal is to advance the power and grid sectors in China through superior products and services. Integrity, quality, service, and customer satisfaction are our cardinal principles. We relentlessly pursue excellence and innovation, endeavoring to establish a brand marked by trust and reliability. Our greatest asset is the recognition we receive from our valued customers. We extend heartfelt gratitude to all our patrons for their unwavering support, and Zhejiang ChaoTai Complete Equipment Co., Ltd. eagerly anticipates continuing our journey together towards a brighter 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}