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 state-of-the-art indoor electrical apparatus engineered for a rated voltage of 12kV, suitable for three-phase AC at 50/60Hz.
2. This advanced switch is adept at making, breaking, and transferring current for high-voltage electrical apparatus under energized but no-load conditions.
3. The switch features a rotary moving contact seamlessly mounted on the switchgear for easy operation.
4. Its innovative design includes wall-through installation, enhancing its adaptability and ease of use.
In the realm of electrical engineering, a disconnector, commonly known as a disconnect switch or isolator switch, is an essential device ensuring complete de-energization of an electrical circuit for service or maintenance. These switches are pivotal in electrical distribution and substations, where machinery needs power sources removed for adjustments or repairs. Disconnectors, which can be manual or motor-operated, may include an earthing switch to secure the isolated section of the system, thereby ensuring safety for both personnel and equipment. High-voltage isolation switches are indispensable in electrical substations, facilitating the isolation of critical apparatus such as circuit breakers, transformers, and transmission lines for maintenance purposes. Typically, disconnectors are not designed for routine control of circuits but are vital for safety isolation. Unlike load switches and circuit breakers, disconnectors lack arc suppression mechanisms, which makes them off-load devices with minimal breaking capacity, meant to be opened only after current interruption by an alternate 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 electrical integration sector. This high-tech enterprise boasts a team brimming with professional expertise in R&D, production, and service, drawing on over 15 years of industry experience.
The company excels in crafting high-voltage solid-state soft starters, capacitor cabinets, and a wide array of high and low voltage switchgear, including gas-insulated types and substations. Our products proudly serve diverse industries—ranging from energy and chemical to metal smelting, electric power grids, and more. They find applications in industrial manufacturing, academic institutions, medical sectors, municipal commerce, hydropower, transportation, and both commercial and residential spheres.
Guided by a commitment to technological innovation and 'smart manufacturing,' Zhejiang ChaoTai Complete Equipment Co., Ltd. actively recruits top-tier technical talent to continually boost its core competitiveness. Our relentless pursuit is to deliver unparalleled services and establish a leading brand of excellence. From humble beginnings, the company has evolved through consistent innovation, embracing quality as a survival strategy, reputational development, and management efficiency. Our guiding mantra—'technology as the guide, standardized management, excellent quality, customer satisfaction'—fuels our dedication to serving China's electric power and grid transmission and distribution fields with ever-ambitious goals. Integrity remains our foundation, quality our pinnacle, service our utmost priority, and customer satisfaction our eternal promise. The pursuit of excellence, unceasing innovation, and building a trusted brand are our steadfast objectives. Your recognition fuels our drive. We extend our heartfelt gratitude to every customer for their unwavering support and look forward to forging a brighter tomorrow 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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