Product Description
Product Description
Specifications
AC HV Disconnect Switch
1. Rated Voltage: 12kV
2. Operates on Three-Phase AC at 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 and operates on three-phase AC at frequencies of 50/60Hz.
2. Engineered for high voltage electric apparatus applications, it facilitates the safe breaking and transferring of current under no-load voltage conditions.
3. The innovative rotary moving contact design ensures ease of mounting on switchgear, enhancing operational efficiency.
4. Features wall-through installation options for seamless integration.
In the realm of electrical engineering, a disconnector, also known as a disconnect switch or isolator switch, plays a pivotal role in ensuring complete de-energization of an electrical circuit for maintenance or service. These devices are crucial in electrical distribution and substations, where machinery requires power removal for safe adjustments or repairs. Disconnectors, whether manually or motor-operated, may be paired with an earthing switch to securely ground the isolated section, ensuring the safety of equipment and personnel. High-voltage isolation switches are indispensable in substations for apparatus isolation, such as circuit breakers, transformers, and transmission lines, during maintenance. Primarily designed for safety isolation rather than routine circuit control, disconnectors are characterized by their lack of arc suppression mechanisms, thus serving as off-load devices intended for activation only post current interruption by other control devices.
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 as a high-tech enterprise specializing in electrical integration. Our esteemed R&D, production, and service teams boast over 15 years of invaluable industry experience.
Our diverse portfolio of cutting-edge products includes high-voltage solid-state soft starters, capacitor cabinets, sophisticated high and low voltage switchgear, innovative gas-insulated switchgear, and robust substations. These are widely acclaimed across fields such as energy, chemical industries, metal smelting, power grids, industrial manufacturing, academic institutions, medical and pharmaceutical sectors, municipal commerce, water conservancy, hydropower, transportation, and both commercial and residential domains.
Guided by a commitment to technological innovation and a smart manufacturing philosophy, we relentlessly pursue superior technical talent to enhance our core competitive edge. Our mission is to deliver unparalleled value and establish the industry's leading brand. Since inception, we've transformed from inception to excellence, embracing innovation and adhering to a business model of quality-driven survival, reputation-led development, and management-efficiency. Upholding 'technology as a guide, standardized management, top-quality, and customer satisfaction,' we aim to elevate our market competitiveness and serve the transmission and distribution sectors of China's electric power grid with unprecedented goals. Our unwavering principles are integrity, quality, service, and customer satisfaction. We aspire to excellence, perpetual innovation, and trustworthiness. Your trust fuels our progress, and we extend heartfelt gratitude to all our loyal patrons. Senhang Technology eagerly anticipates forging a brighter future 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.
Audited Supplier 
){kind=link}