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 electrical device with a rated voltage of 12kV, designed for three-phase AC50/60Hz applications.
2. It is expertly crafted to effectively make, break, and transfer current in high-voltage electric apparatus, specifically under conditions with voltage but no-load.
3. The switch features a rotary moving contact, conveniently mounted on the switchgear, ensuring ease of use and reliability.
4. It also incorporates a wall-through installation design, optimizing space and functionality.
In the realm of electrical engineering, a disconnector or isolator switch plays a pivotal role in ensuring a circuit is completely de-energized for service or maintenance. These vital components are primarily used to break circuits and are integral to electrical distribution and substations. Here, machinery needs its power source removed for safe adjustment or repair. Disconnectors can be either manual or motor-operated and are often coupled with an earthing switch to ground isolated sections, thereby safeguarding both equipment and personnel. High-voltage isolation switches are essential in substations for isolating apparatus like circuit breakers, transformers, and transmission lines during maintenance. While disconnectors are not intended for routine circuit control, they ensure safety isolation. Unlike load switches and circuit breakers, disconnectors do not suppress electric arcs that occur when interrupting circuits with high current. They are designed as off-load devices with minimal breaking capacity, meant to be opened only after current cessation 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 electrical integration sector. As a high-tech enterprise, we boast a dedicated R&D, production, and service team with over 15 years of invaluable industry expertise, driving our commitment to excellence.
Our product suite includes high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These products are indispensable across diverse industries such as energy, chemical, metal smelting, electric grids, industrial manufacturing, educational institutions, as well as medical, municipal, commercial, water conservation, traffic management, and residential sectors.
Our philosophy is rooted in technological innovation and 'smart manufacturing,' placing emphasis on attracting top-tier technical talent to amplify our core competitiveness. We strive tirelessly to offer unparalleled services to our clients while aspiring to build the foremost brand in our industry. Since inception, Zhejiang Chaotai has progressed remarkably, evolving from nonexistence to prominence, and from prominence to excellence. We are anchored in a modern business strategy that champions survival through quality, market orientation, reputation-led development, and management-driven efficiency. Our allegiance to 'technology-led, standardized management, outstanding quality, and customer satisfaction' underscores our quality and technical talent management, intensifying our competitive edge. Our mission is to serve China's power and grid sectors with swifter, stronger, and loftier ambitions. Integrity, quality, service, and customer contentment form the cornerstone of our enduring philosophy. With a steadfast pursuit of excellence and innovation, we are devoted to crafting a brand that commands trust. Your trust fuels our journey, and we express heartfelt gratitude to all our patrons, both new and long-standing, for their loyalty and support. Zhejiang Chaotai eagerly anticipates collaborating with you to forge a prosperous 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}