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 top-tier indoor electrical apparatus designed for a rated voltage of 12kV, operating seamlessly in three-phase AC 50/60Hz environments.
2. It excels in making, breaking, and transferring current for high-voltage electrical apparatus under voltage and no-load conditions, ensuring optimal performance and reliability.
3. The switch employs a state-of-the-art rotary moving contact mechanism, effortlessly mounted on the switchgear for easy integration and operational efficiency.
4. Additionally, it supports wall-through installation, offering flexibility and simplicity in various setup environments.
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 entirely de-energized during service or maintenance procedures. These switches are specifically designed for circuit-breaking purposes and are predominantly found in electrical distribution and substations. Here, machinery requires its power source to be safely removed for adjustments or repairs. Disconnectors can be either manually or motor-operated and may be equipped with an earthing switch to ground the isolated section, ensuring the utmost safety for both equipment and personnel. High-voltage isolation switches are indispensable in electrical substations, facilitating the isolation of key apparatus like circuit breakers, transformers, and transmission lines for maintenance. Importantly, disconnectors are not intended for routine circuit control but are purposed for safety isolation. Unlike load switches and circuit breakers, disconnectors do not possess a mechanism for suppressing electric arcs that occur when interrupting conductors carrying high currents. Therefore, they are classified as off-load devices with minimal breaking capacity, intended to be engaged only after the current has been halted 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 realm of electrical integration. As a distinguished high-tech enterprise, we pride ourselves on our cutting-edge approach, backed by a dedicated R&D, production, and service team with an impressive 15 years of industry expertise. Our commitment to excellence and innovation positions us at the forefront of the industry.
Our impressive product line-up showcases our mastery in engineering and innovation, featuring high-voltage solid-state soft starters, versatile capacitor cabinets, state-of-the-art high and low voltage switchgear, advanced gas-insulated switchgear, and robust substations. Our solutions are seamlessly integrated across a diverse array of sectors: energy and chemical industries, metal smelting, expansive electric power grids, industrial manufacturing, academic institutions, medical and pharmaceutical fields, municipal commerce, water conservancy, hydropower, road traffic, along with commercial and residential domains. Our products are the backbone of modern infrastructure, heralding superior performance and reliability.
Driven by a passion for technological innovation and adhering to our 'smart manufacturing' ethos, we are committed to infusing fresh, high-level technical talent into our brand's DNA. This strategic approach enhances our core competitiveness, offering unparalleled value to our clientele. Over the years, Zhejiang ChaoTai has transformed, evolving from humble beginnings to a leading force, never ceasing in our pursuit of excellence. Our guiding principles are crystal clear: quality as the bedrock of survival, reputation as the path to development, and efficiency as the hallmark of management success. We remain steadfast in our dedication to 'technology as the guide, standardized management, excellent quality, and customer satisfaction.' Our goal is to amplify our market presence, offering more powerful, efficient solutions for China's electric power and grid sectors. Integrity underscores our operations, with quality and customer satisfaction at the forefront. As we strive for excellence and continuous innovation, we aim to build a brand synonymous with trust and reliability. Your support fuels our journey, and we extend our heartfelt gratitude to our loyal patrons. Zhejiang ChaoTai eagerly anticipates partnering with you to forge a brighter, prosperous future together.
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}