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 sophisticated indoor electric apparatus designed for a rated voltage of 12kV, catering to three-phase AC 50/60Hz applications.
2. Perfectly engineered to make and break electric currents, this switch is ideal for HV electric apparatus under scenarios with voltage but devoid of load.
3. This switch boasts a rotary moving contact, innovatively mounted on the switchgear for ease of use and enhanced functionality.
4. It also features a wall-through installation, adding versatility to its application.
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 service or maintenance. These essential devices are tailored specifically for breaking circuits and are predominantly found in electrical distribution systems and substations, where machinery must be safely powered down for adjustments or repairs. Disconnectors can be operated manually or via motors and are frequently paired with earthing switches to ground the isolated portion, ensuring utmost safety for both equipment and personnel. High-voltage isolation switches are indispensable in electrical substations, facilitating the isolation of key apparatus such as circuit breakers, transformers, and transmission lines for maintenance chores. Unlike their counterparts—load switches and circuit breakers—disconnectors are not designed for regular circuit control, but purely for safety isolation. They do not possess arc suppression mechanisms, which are vital for interrupting electric currents safely, thereby categorizing them as off-load devices with minimal breaking capacity, meant to be opened only after current interruption 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. prides itself as a cutting-edge, high-tech enterprise with a specialized focus in the realm of electrical integration. Our esteemed team, equipped with exceptional R&D, production, and service capabilities, boasts over 15 years of unparalleled industry expertise.
Our distinguished product lineup features high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These state-of-the-art products are seamlessly integrated into a plethora of sectors, including energy, chemical industries, metal smelting, electric power grids, industrial manufacturing, academic research, medical and pharmaceutical endeavors, municipal commerce, water conservancy and hydropower, road traffic systems, and both commercial and residential domains.
Embracing technological innovation and the progressive philosophy of 'smart manufacturing,' we are determined to uplift our core competencies by attracting top-tier technical talents. Our unwavering commitment is to deliver unparalleled value to our clients while aspiring to establish ourselves as the leading brand in the industry. Since our inception, we have embarked on a remarkable journey of transformation, evolving from obscurity to prominence, and ultimately achieving excellence. Our steadfast dedication to innovation is matched by our adherence to a contemporary business strategy that focuses on quality for survival, market orientation for growth, reputation for development, and management for efficiency. Guided by the pillars of 'technology leadership, standardized management, superior quality, and customer satisfaction,' we aim to bolster our market dominance, ensuring faster, stronger, and higher achievements in China's power transmission and grid sectors. Upholding integrity, prioritizing quality, delivering exemplary service, and ensuring customer satisfaction remain our perpetual principles. Our relentless pursuit of excellence, continuous innovation, and commitment to building a credible brand underscore our steadfast developmental objectives. Your recognition fuels our passion and dedication. We extend our heartfelt gratitude to all our loyal customers for their enduring support, and Zhejiang ChaoTai looks forward to forging a brighter future together, hand in hand.
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}