
Vd4 Indoor Vacuum Circuit Breaker for Medium Voltage Switchgear
Outdoor AC vacuum circuit breakers are used to connect and disconnect load current, overload current and short-circuit current in 12/24kV, 50/60Hz power systems. It is suitable for substation, industrial and mining, urban and rural power grids, especially in the occasions of frequent operation...
Description
We will make every effort to be outstanding and perfect, and accelerate our steps for standing in the rank of international top-grade and high-tech enterprises for Mini Transformer Substation, 35kV Dry Type Amorphous Core Transformer, electrical switchgear device. Our company deeply understands the broad connotation of 'ideas determine the way out, details determine success or failure', earnestly pursues the concept of 'quality is the life of an enterprise, and quality is the foundation of the brand', and will continue to make unremitting efforts for the development of the industry. Facing the future development, we will adapt to the market economy, and give full play to the advantages of our enterprise. We believe that forward-looking companies are more proactive in the future, and foresight is reflected in the judgment and choice at every critical point.
Outdoor AC vacuum circuit breakers are used to connect and disconnect load current, overload current and short-circuit current in 12/24kV, 50/60Hz power systems. It is suitable for substation, industrial and mining, urban and rural power grids, especially in the occasions of frequent operation and automatic distribution network. Comply with IEC622 71-100 & GB1984: AC high voltage circuit breaker, IEC60694 & GB/T11022: General technical requirements for HV switch control equipment.

| Name | Unit | Data | ||
| 12kV | ||||
| Rated voltage | KV | 12 | ||
| Rated current | A | 630,1250 | ||
Rated insulating level | 1min.PF withstand voltage | dry | KV | 42(across open contacts:48) |
| wet | 34 | |||
Lightning impulse withstand voltage(peak) | kv | 75(across open contacts:85) | ||
Rated short-circuit breaking current | KA | 20,25 | ||
Rated short-circuit making current (peak) | KA | 50,63 | ||
Rated peak withstand current | KA | 50,63 | ||
4s rated short-time withstand current | KA | 20,25 | ||
| Rated operating sequence | O-0.3s-CO-180s-CO | |||
Breaking times of rated short-circuit breaking current | times | 30 | ||
| Mechanical duration | times | 10000 | ||
Rated voltage of energy storage motor | V | DC or AC220,DC110, 48, 24 | ||
| Rated operation voltage | V | DC or AC220,DC110, 48,24 | ||
| Abrasions thickNess of contacts | mm | 3 | ||
Rated current of over-current release | A | 5 | ||
| Current transformer ratio | 200/5, 400/5, 600/5 (Protection degree: Ⅲ class, Class: 0.5) | |||
FAQ:
Q: Can we get samples for reference?
A: Yes, as long as the goods are of conventional type, you will be charged for the sample fee and related transportation costs.
Q: How to solve quality problems after sale?
A: Take photos of quality problems, and then send them to us for inspection and confirmation. We will provide you with a satisfactory solution within 3 days.
Q: What is the delivery time?
A: The delivery time depends on the quantity ordered, usually within 25-35 days after receiving the advance payment.
Q: What are your payment terms?
A: We accept Western Union, wire transfer, and irrevocable letters of credit.
Q: Can you print our brand on the product?
A: Yes, of course, we also carry out OEM to print the customer's brand on the product.
We have accumulated a certain amount of knowledge and technology, and created Vd4 Indoor Vacuum Circuit Breaker for Medium Voltage Switchgear that meets customer needs with good technology and innovative spirit. Since upholding the principle of fairness, we respect each other on the basis of recognizing the differences between people, and at the same time, give equal opportunities to enterprising people. We set up sales shop, show room, and product warehouse.
Hot Tags: high voltage 3 phase vacuum circuit breaker, China, manufacturers, suppliers, customized, 22kv ring main unit, power distribution device, KYN28 cabinet shell, Dry type distribution transformers, GCS Low Voltage Outgoing Switchgear, Indoor Vacuum Circuit Breaker
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