Overview of High And Medium Voltage 630A 1250A Vacuum Circuit Breakers 12kV 11kV 10kV VCB Indoor VD4 Vacuum Circuit Breakers

High And Medium Voltage 630A 1250A Vacuum Circuit Breakers 12kV 11kV 10kV VCB Indoor VD4 Vacuum Circuit Breakers is a type of circuit breaker where the arc quenching medium is a high vacuum. Unlike older breakers that used air, oil, or SF6 gas to extinguish the electrical arc, a VCB utilizes the superior dielectric properties of a vacuum to rapidly extinguish the arc when the contacts separate, thereby interrupting the current flow and protecting the electrical system.

Characteristics of High And Medium Voltage 630A 1250A Vacuum Circuit Breakers 12kV 11kV 10kV VCB Indoor VD4 Vacuum Circuit Breakers

Strong arc extinguishing ability: using vacuum medium to quickly extinguish the arc, with high breaking ability.

Safe and environmentally friendly: No fire or explosion risks, no greenhouse gas emissions.

Easy maintenance: Vacuum bubbles are maintenance free, with a long overall maintenance cycle and low workload.

Long lifespan: Both mechanical and electrical lifespan are very long.

Small size: Compact structure, saving space.”

Specifications of High And Medium Voltage 630A 1250A Vacuum Circuit Breakers 12kV 11kV 10kV VCB Indoor VD4 Vacuum Circuit Breakers

Our VD4 indoor vacuum circuit breakers manage high and medium voltage power systems effectively. They operate reliably at 10kV, 11kV, and 12kV voltage levels. These breakers handle high currents safely. They come in two main ratings: 630 Amperes and 1250 Amperes. This covers many distribution network needs.

The core technology uses a vacuum interrupter. This is inside the breaker. It extinguishes the electrical arc quickly when interrupting current. This action happens reliably. Vacuum interruption offers strong dielectric recovery. It provides long electrical life. It requires minimal maintenance compared to older technologies.

These breakers are designed for indoor switchgear installations. They fit standard cubicles. The construction is robust. It ensures stability during operation. The insulation system provides high dielectric strength. It withstands normal voltage and impulse surges. The rated short-circuit breaking capacity is high. It handles major fault currents safely.

The operating mechanism is spring-stored energy. It ensures fast closing and opening actions. This mechanism is reliable. It works consistently over many operations. Manual charging is standard. Motorized charging options are available. This adds convenience for frequent use.

Safety features are integrated. They include anti-pumping devices. They prevent multiple closing attempts under fault. Mechanical interlocks ensure correct operating sequences. These prevent unsafe conditions. The breakers meet international standards like IEC 62271-100. They undergo rigorous testing. This guarantees performance and safety.

The breakers work well in normal indoor environments. The ambient temperature range is standard. They operate reliably within specified humidity levels. Their compact design saves space in switchgear panels.

Applications of High And Medium Voltage 630A 1250A Vacuum Circuit Breakers 12kV 11kV 10kV VCB Indoor VD4 Vacuum Circuit Breakers

These vacuum circuit breakers protect electrical systems. They work reliably at 10kV, 11kV, and 12kV levels. Common ratings are 630A and 1250A. They are built for indoor use. The VD4 type is a standard model.

Their main job is controlling power flow. They safely switch circuits on and off. They protect equipment during normal operation. More importantly, they stop dangerous faults fast. They cut off short circuits immediately. This prevents damage to expensive transformers and cables. It also keeps the whole network stable.

Factories rely heavily on these breakers. They guard large motors and production lines. Power surges can wreck machinery. These breakers stop that. They protect critical processes. Manufacturing needs constant, safe power. These breakers help deliver that. They are common in steel plants, chemical plants, and large workshops.

Power distribution networks use them widely. They are key inside substations. They control sections of the grid. Utilities install them to manage power flow. They isolate problems quickly. This minimizes outages for customers. They handle the high currents found in substations.

Building owners need them for large complexes. Hospitals, data centers, and shopping malls use them. They protect the main power feeds. They ensure safety for the building’s internal grid. Large backup generators often connect through them.

These breakers offer big advantages. Vacuum technology makes them last longer. They need less maintenance than older types. They are very safe. They contain arcs inside the vacuum bottle. This prevents fires or explosions. They are compact for their power rating. This saves space in switchgear. They are dependable over many years. They are a smart choice for modern electrical protection. They keep systems running smoothly and safely.

Company Profile

PDDN Photoelectron Technology Co., Ltd. is one of the leading enterprises in power electronics technology and power products, which is fully involved in developing solar inverters， transformers, voltage regulators, distribution cabinets, thyristors， modules， diodes， heaters, and other electronic devices or semiconductors. We will be committed to providing users with high-quality, efficient products and considerate service.

It accepts payment via Credit Card, T/T, West Union, and Paypal. PDDN will ship the goods to customers overseas through FedEx, DHL, by sea, or by air. If you want high-quality High And Medium Voltage 630A 1250A Vacuum Circuit Breakers 12kV 11kV 10kV VCB Indoor VD4 Vacuum Circuit Breakers, please send us inquiries; we will be here to help you.

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment

By sea, by air, by express, as customers request.

Storage Conditions

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.

5 FAQs of High And Medium Voltage 630A 1250A Vacuum Circuit Breakers 12kV 11kV 10kV VCB Indoor VD4 Vacuum Circuit Breakers

Here are 5 common questions about 630A and 1250A, 12kV/11kV/10kV Indoor VD4 Vacuum Circuit Breakers:

What exactly is this VD4 Vacuum Circuit Breaker?
It’s a switch. It protects electrical systems. It uses a vacuum inside sealed bottles to stop the current flow fast. This happens when there’s a problem like a short circuit. It also works for normal switching on and off. It handles medium and high voltages up to 12kV.

What are the main things this breaker does?
Its main job is protection. It cuts off faulty current very quickly. This prevents damage to expensive equipment. It also isolates faulty sections of the network. Operators use it to safely switch parts of the power system on or off for maintenance. It ensures reliable power supply.

Why pick a vacuum breaker like the VD4?
Vacuum interrupters are key. They last a very long time. They need almost no maintenance. They are very safe. They don’t use oil or gas. There’s no fire risk or pollution. They operate silently. They are extremely reliable for frequent switching. They are compact.

Does this breaker need a lot of upkeep?
No. That’s a big advantage. The vacuum interrupters are sealed for life. You don’t need to check the interrupting medium. Basic maintenance focuses on the mechanical parts. This includes checking moving components and lubrication points periodically. The design minimizes routine work.

Where do people typically install these 630A/1250A VD4 breakers?
They go inside buildings. Common places are electrical substations. They protect generators and transformers. They are used in industrial power distribution networks. You find them in large factories, mines, and big commercial complexes. Anywhere medium voltage power needs reliable switching and protection indoors.