
24kv Handcart Type Vacuum Circuit Breaker with Embedded Pole
Indoor AC high voltage vacuum circuit breaker hereinafter referred to as a circuit breaker is a three-phase AC rated voltage indoor switchgear, which can be used for the control and protection of electrical facilities in industrial and mining enterprises, power plants and substations, and is...
Description
Using a complete scientific high quality management program, superior high quality and superior faith, we acquire great reputation and occupied this industry for 500 KVA transformer, Electric Substation Switchgear, High Voltage Switch Cabinet. We have been serving our customers with an unmatched passion for excellence and innovation since the establishement of our company. We will always keep researching and innovating in the fastest-growing market and make sure us and our customer to be the leader of our industry. By purchasing advanced equipment and introducing high-tech talents, we have provided a strong guarantee for the development and production of first-class products. We express our recognition of Chinese history and affirmation of Chinese culture by fulfilling our corporate responsibilities to society.
Indoor AC high voltage vacuum circuit breaker hereinafter referred to as a circuit breaker is a three-phase AC rated voltage indoor switchgear, which can be used for the control and protection of electrical facilities in industrial and mining enterprises, power plants and substations, and is suitable for places with frequent operations.
The circuit breaker meets the standard requirements of "AC high voltage circuit breaker", 855-1996 "3.6-40.5kV indoor AC high voltage vacuum circuit breaker", DL403-91, "10-35KV indoor AC high voltage circuit breaker ordering technical requirements", and meets The relevant requirements of IEC56 (Publication 87).
The circuit breaker adopts an integrated design of the operating mechanism and the circuit breaker body, which can be used as a fixed installation unit or a dedicated propulsion mechanism to form a handcart unit.
It is an indoor switchgear with three-phase AC 50Hz rated voltage of 12KV power system. It is used as protection and control unit for power equipment and industrial and mining enterprises. Applicable to places that require frequent operation at rated operating current, or multiple times to break short-circuit current.
The circuit breaker adopts an integrated design of the operating mechanism and the circuit breaker body, and can be used as a fixed installation unit, or can be equipped with a special propulsion mechanism to form a hand truck unit.
Features: small size, light weight, suitable for frequent operation
Main structure: vacuum interrupter, electromagnetic or spring operating mechanism, bracket and other components.
Conditions of use:
The ambient temperature is not higher than +40℃, not lower than -15℃ (storage and transportation allowed at -30℃);
The altitude does not exceed 1000m;
Relative temperature: the daily average value is not more than 95%, the monthly average value is not more than 90%, the daily average value of saturated vapor pressure is not more than 2.2×10Mpa, and the average value is not more than 1.8×10 MPa;
The earthquake heat does not exceed 8 degrees;
There is no place with fire, explosion hazard, serious pollution, chemical corrosion and severe vibration.
The main technical parameters:
NO | Item | Units | Technical parameters | ||
1 | Rated voltage | KV | 12 | ||
2 | Rated short-duration power frequency withstand voltage | 42/48(Interphase, ground/fracture) | |||
3 | Rated lightning impulse withstand voltage | 42/48(Interphase, ground/fracture) | |||
4 | Rated frequency | Hz | 50 | ||
5 | Rated current | A | 630 1250 | 630 1250 1600 2000 2500 3150 | 630 1250 1600 2000 2500 3150 |
6 | Rated short-circuit breaking current | KA | 20/25 | 31.5 | 40 |
7 | Rated short-time withstand voltage | 20/25 | 31.5 | 40 | |
8 | Rated short circuit duration | S | 4 | ||
9 | Rated peak withstand current | KA | 50/63 | 80 | 100 |
10 | Rated short circuit closing current | 50/63 | 80 | 100 | |
11 | Secondary circuit power frequency withstand voltage (1min) |
2000 | |||
12 | Rated single / back to back capacitor group breaking current | A | 630/400(40kA:800/400) | ||
13 | Rated capacitor bank closing current | 12.5 (frequency is not greater than) | |||
14 | Mechanical life | KA | 20000 | ||
15 | Rated current breaking times (electrical life) | 20000 | |||
16 | Rated short circuit current breaking times | times | 50(40KA≤30) | ||
17 | Dynamic and static contacts allow wear cumulative thickness | mm | 3 | ||
18 | Energy storage time | s | ≤10 | ||
19 | Contact opening distance | mm
| 11±1 | ||
20 | Overtravel | 3.5±0.5 | |||
21 | Contact closing bounce time | ms
| ≤2(40KA≤3) | ||
22 | Three-phase split/closed period | ≤2 | |||
23 | Average opening speed (contacts are separated by -8mm) | m/s
| 1.2±0.2 | ||
24 | Main conductive loop resistance | 0.6±0.2 | |||
25 | Main conductive loop resistance | μΩ | ≤50(630A)≤45(1250A) ≤40 (1600,2000A)≤35 (2500A or more) | ||
26 | Rated operation sequence | 0-0.3s-Co-180s-Co | |||
Fields of application:
The following is a list of SM6 range units used in medium/low voltage substations and industrial distribution substations:
Cable control and protection
Overhead control and protection
Transformers and distribution substations
Motor and transformer control and protection
Generator control and protection
Control and protection of capacitor bank
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FACTORY

FAQ:
Q1: If I am interested in your products, when can I receive your quotation and detailed information after sending the inquiry?
A: All your queries will be answered within 24 hours.
Q2: Because I cannot confirm the quality of your products, can I get samples before ordering?
A: Of course! We also believe that sample ordering is the best way to build trust. In our company, we provide sample service! Please send inquiries to us and get samples!
Q3: Do you have a catalog? Can you send me a catalog to check all your products?
A: Yes, we have a product catalog. Please contact us online or send an email to send the catalog.
Q4: I need a price list of all your products. Do you have a price list?
A: We do not have a price list for all products. Because we have a lot of products, it is impossible to mark all prices on the list. Due to production costs, prices are always changing. If you want to check any prices of our products, please feel free to contact us. We will send you a quote as soon as possible!
This product is usually customized.
We are a manufacturer and have a professional technical department that can design and provide solutions according to customer needs.
Please contact our sales personnel to obtain design drawings
Here are our customer examples for your reference
IF NEED MORE DETAILES,PLEASE FEEL FREE YO CONTACT US
We not only will try our greatest to offer you excellent services to each individual client, but also are ready to receive any suggestion offered by our buyers for 24kv Handcart Type Vacuum Circuit Breaker with Embedded Pole. Our enterprise insists on innovation to promote the sustainable advancement of organization, and make us become the domestic high-quality suppliers. We are guided by the employment policy of meritocracy, and we have absorbed a large number of people with both ability and political integrity for corporate purposes.
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