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 electric apparatus designed for a rated voltage of 12kV, suitable for three-phase AC systems running at 50/60Hz. This switch represents the pinnacle of safety and reliability in electrical isolation.
2. Expertly engineered, it is employed to make, break, and transfer current for high-voltage electric apparatus, especially under voltage conditions without load, ensuring seamless and secure operation.
3. The switch is equipped with a rotary moving contact, strategically mounted on the switchgear for effortless handling and increased operational efficiency.
4. It is designed for wall-through installation, providing versatility and ease of integration into existing systems.
In the realm of electrical engineering, a disconnector—also known as a disconnect switch or isolator switch—plays a crucial role in ensuring that an electrical circuit is thoroughly de-energized for maintenance or servicing. These essential components are solely used for breaking circuits and are commonly found in electrical distribution hubs and substations, where machinery demands its power source be removed for adjustments or repairs. Disconnectors can be either manual or motor-operated and are frequently paired with an earthing switch to ground isolated portions, safeguarding both equipment and personnel. High-voltage isolation switches are integral in substations, facilitating the isolation of apparatus like circuit breakers, transformers, and transmission lines for maintenance purposes. While disconnectors are primarily intended for safety isolation rather than regular circuit control, they differ from load switches and circuit breakers in that they lack mechanisms to suppress electric arcs. These off-load devices feature minimal breaking capacity and are designed to be opened only after current interruption by other control mechanisms.
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 luminary in the field of electrical integration, recognized as a high-tech enterprise with a wealth of over 15 years of expertise. Our professional R&D, production, and service teams are dedicated to driving innovation and excellence in electrical solutions.
Our expansive portfolio includes high-voltage solid-state soft starters, state-of-the-art capacitor cabinets, versatile high and low voltage switchgear, cutting-edge gas-insulated switchgear, and robust substations. Our products have seamlessly integrated into diverse sectors, including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academic institutions, medical and pharmaceutical fields, municipal commerce, water management, hydropower, transportation, and both commercial and residential areas.
With a steadfast commitment to technological innovation, Zhejiang ChaoTai champions the 'smart manufacturing' ethos, attracting elite technical talent to fortify our core competitiveness. Our mission is to deliver unparalleled value to our customers while aspiring to be the industry's premier brand. From inception, we've embraced a path of continuous improvement, transforming from a nascent entity to a beacon of excellence. We prioritize innovation, aligning our strategies with modern business principles: survival through quality, market expansion through reputation, and efficiency through meticulous management. Our dedication to 'technology as the guide, standardized management, superior quality, and customer satisfaction' remains unwavering, enhancing our market competitiveness while serving China's electric power and grid transmission and distribution sectors with ambitious goals. Integrity, quality, service, and customer satisfaction are our guiding principles. Our relentless pursuit of excellence and unwavering innovation drive us to build a brand our clients can trust. We extend our deepest gratitude to our valued customers for their enduring support and enthusiasm. Together with Senhang Technology, we eagerly anticipate creating 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.
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