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VTZ-15/T5000-63 Indoor High-voltage Generator Circuit Breaker
2. Operating Mechanism: Integrated operating mechanism.
3. Installation Method: Floor-standing, Fixed-mounted Drawout Unit
4. Compatible Cabinet: Special fixed cabinet from the XGN series.
5. Product Compliance with Standards: GB/T 1984-2014, GB/T 11022-2011, GB/T 14824-2021.
6. Product Features: High current capacity and breaking capability, cooling capacity, elliptical cross-section insulation, equalizing rings.
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Product Introduction
VTZ-15/T5000-63 indoor high-voltage generator circuit breaker is a vacuum circuit breaker designed for generator outlets in 15 kV and lower, three-phase AC 50 Hz systems. It is primarily utilized in the plant auxiliary circuits of small to medium-sized hydroelectric generator units, thermal power generators, new energy generation systems, and industrial facilities-such as those in the chemical and processing sectors-that operate with their own captive power generation capabilities.
Product Specifications
Specification Sheet
|
No. |
Name |
Unit |
Data |
|
1 |
Rated Voltage |
kV |
15 |
|
2 |
Rated Frequency |
Hz |
50 |
|
3 |
Rated Current |
A |
4000/5000 |
|
4 |
Rated Power Frequency Withstand Voltage |
kV |
59 |
|
5 |
Rated Lightning Impulse Withstand Voltage |
kV |
102 |
|
6 |
Rated Short-Circuit Breaking Current |
kA |
63 |
|
7 |
Rated Short-Circuit Making Current (Peak) |
kA |
173 |
|
8 |
Rated Withstand Current (Peak) |
kA |
173 |
|
9 |
Rated Duration of Short-Circuit |
s |
2 |
|
10 |
Operating Cycles at Rated Short-Circuit Breaking Current |
Cycles |
E2 |
|
11 |
Mechanical Endurance |
Times |
10000 |
|
12 |
Standard Operating Sequence |
- |
CO-15min-CO |
|
13 |
Allowable Wear Thickness of Contact |
mm |
≤3 |
Mechanical Characteristics
|
No. |
Name |
Unit |
Data |
|
1 |
Clearance between Moved and Fixed Contact |
mm |
11±1 |
|
2 |
Contact Overtravel |
mm |
4±1 |
|
3 |
Average Closing Speed |
m/s |
1±0.2 |
|
4 |
Average Opening Speed |
m/s |
1.4±0.2 |
|
5 |
Rated Contact Pressure |
N |
7500N |
|
6 |
Closing Time |
ms |
30~80 |
|
7 |
Opening Time |
ms |
20~60 |
|
8 |
Contact Bouncing Duration at Closing Operation |
ms |
≤3 |
|
9 |
No-Simultaneity of Closing/Opening Operations of 3-Phase |
ms |
≤2 |
Product Features
VTZ-15/T5000-63 indoor high-voltage generator circuit breaker has many features:
Features high current capacity, high breaking capability, and represents an advanced level of technical performance and manufacturing craftsmanship;
The DC component of the rated breaking current is ≥ 75%;
Employs technology similar to Siemens' 3AH series;
When installed independently, the rated current can reach 5000A under natural air cooling;
The insulation components feature an elliptical cross-section, meeting design requirements for both tensile and bending strength; high-strength insulating tie rods and support rods are utilized;
Stress-grading rings are designed between the insulators and their supports to ensure a uniform electric field distribution;
The circuit breaker features a fixed-mount configuration, with the main circuit clearances satisfying air insulation distance requirements.
Product Applications
VTZ-15/T5000-63 indoor high-voltage generator circuit breaker has many applications:
Generators
Synchronous condensers and main circuits of pumped-storage power stations
Station service circuits for small-to-medium capacity power plants
Product Outline Drawing
Secondary Wiring Diagram
who choose us
Excellence in research and development
Innovation is at the core of our business. We have independently developed the VTZ Series Vacuum Circuit Breakers and continue to invest in research and development to meet the evolving needs of the electrical industry. Our R&D team consists of senior technical experts with decades of experience in the design and manufacture of high and low voltage electrical equipment. Their expertise, combined with our advanced facilities, allows us to stay ahead of industry trends and continually optimize our product offerings.
Advanced manufacturing and production
We operate one of the most advanced and standardized assembly line manufacturing facilities in the industry, equipped with the latest technology, enabling us to produce a wide range of high quality electrical products with precision and efficiency. Wecomply with GB 1984-2024 and GB/T11022-2020 standards to ensure the highest quality. Our commitment to excellence is reflected in the durability, reliability, and compatibility of our products.
Adapting to industry trends
Guided by our strategic development plan, we continuously adapt our products to align with the latest trends in smart grids, power system automation, and high altitude environments. Our leading high-current, high-voltage, and long-life products are designed to meet the rigorous demands of today's power systems, providing our customers with reliable, maintenance-free solutions that stand the test of time.
Wide range of products
We offer a wide range of products, including indoor and outdoor vacuum circuit breakers, switchgear, low voltage switch equipment, and various electrical accessories. Each product is designed to meet the specific needs of our customers, and can operate stably in urban distribution networks, industrial melting, new energy power generation, rural power supply and other places, and can still maintain excellent reliability even in harsh environments.
Reliable Vacuum Circuit Breakers, Customized for Global Clients
Professional Technical&Sales Team | On-Time Delivery
12KV/24KV/40.5KV vacuum circuit breakers
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