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 indoor electrical apparatus designed for a rated voltage of 12kV, suitable for three-phase AC 50/60Hz operations.
2. This switch is crafted to facilitate the making, breaking, and transfer of current for high-voltage electrical apparatus in scenarios involving voltage presence but no-load conditions.
3. Ingeniously designed, the switch utilizes a rotary moving contact, easily mounted on the switchgear for user convenience.
4. It also incorporates a wall-through installation, enhancing versatility and application.
In electrical engineering, a disconnector, disconnect switch, or isolator switch, is an essential device used to ensure that an electrical circuit is entirely de-energized for safe service or maintenance. These switches are solely employed for circuit interruption and are predominantly situated within electrical distribution systems and substations. Here, machinery must have its power source eliminated to permit adjustment or repair work. Disconnectors can be manually or motor-operated and may be paired with an earthing switch to ground the isolated section, ensuring safety for both the equipment and personnel. High-voltage isolation switches play a pivotal role in substations for the isolation of apparatus like circuit breakers, transformers, and transmission lines for maintenance purposes. The primary function of a disconnector is safety isolation rather than regular circuit control. Unlike load switches and circuit breakers, disconnectors do not possess a mechanism for suppressing electric arcs, which occur when conductors carrying high currents are interrupted electrically. Consequently, they are off-load devices with minimal breaking capacity, intended for opening only 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 vanguard high-tech enterprise in the realm of electrical integration. With a distinguished team specializing in R&D, production, and service, boasting over 15 years of rich industry experience, we are dedicated to excellence.
Our premier products include high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These products are extensively utilized across diverse sectors such as energy and chemical industries, metal smelting, electric power grids, industrial manufacturing, academia, medical and pharmaceutical sectors, municipal commerce, water conservancy and hydropower, road traffic, as well as commercial and residential domains.
Embracing a philosophy of technological innovation and 'smart manufacturing,' we are committed to elevating our core competitiveness by attracting top-tier technical talents. Our unwavering aim is to deliver incomparable value and establish ourselves as the industry's preeminent brand. Since inception, we have embarked on a journey of relentless progress, from inception to excellence. Consistent innovation underpins our adherence to a modern business ethos that champions quality for survival, market orientation, reputation-driven development, and efficiency through astute management. Our commitment is unwavering: 'technology as the guide, standardized management, superior quality, and customer satisfaction.' This guiding principle enhances our market competitiveness as we aim to serve China's electric power and grid sectors with unparalleled speed, strength, and elevated standards. Our foundational values are integrity, quality, service, and customer satisfaction. The pursuit of excellence, perpetual innovation, and the cultivation of a trustworthy brand are our steadfast objectives. Your acknowledgment propels us forward, and we extend our gratitude to all esteemed clients for their enduring support and affection. Senhang Technology eagerly anticipates collaborating with you to forge 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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