Advantages:
1. High reliability: Due to absence of moving parts, solid-state MV circuit breakers are less prone to damage, reducing the risk of unexpected failure and allowing for thousands of make/break operations.
2.Temperature flexibility: Solid-state MV circuit breakers can operate at higher working temperatures and have adjustable temperature settings, accommodating different working environments.
3. Remote configuration capability: Support for reset via wired or wireless connections enhances the convenience and safety of operation.
4. Quick switching speed: Able to interrupt the circuit in just a few milliseconds, avoiding the arc and voltage fluctuations that can occur with mechanical circuit breakers during switching.
5. Programmable current rating: The current rating of solid-state MV circuit breakers can be as needed, providing greater flexibility.
6. Compact size, lightweight: Compared to traditional mechanical circuit breakers, solid-state MV circuit breakers are more compact, making easier to install and transport.
Limitations：
1. Voltage/current rating limitations: Solid-state MV circuit breakers usually have limited voltage and current ratings, making themsuitable for all high-voltage, high-current applications.
2. Higher conduction losses: Solid-state MV circuit breakers have higher energy losses in the conducting state compared mechanical circuit breakers, which can lead to additional cooling requirements and operating costs.
3. Higher cost: Solid-state MV circuit breakers typically have higher prices than mechanical circuiters, which can be attributed to the complexity of the technology and material costs.
In summary, solid-state MV circuit breakers offer significant advantages in terms of reliability, temperatureability, remote operation, switching speed, flexible current ratings, and physical size.
However, they still have certain limitations in terms of voltage/current handling capacity, conduction losses, and. As technology advances, these limitations are expected to be improved.
VTZ-12 indoor phase-selective switching intelligent vacuum circui breaker
VTZ-12 indoor phase-selective switching intelligent vacuum circuit breaker (Tongzhong Electric's exclusive model) is designed for indoor switchgear with a rated voltage of 12kV and AC 50/60Hz. It utilizes a permanent magnet operating mechanism and is suitable for specialized applications in various industrial and mining enterprises and power grids. The trolley unit can be used directly with the KYN28A-12 switchgear, directly replacing conventional three-phase integrated vacuum circuit breakers in existing switchgear.
This intelligent vacuum circuit breaker features a permanent magnet mechanism, a permanent magnet mechanism controller, and an intelligent processor. Three controllers, working with three independent permanent magnet mechanisms, enable phase-selective switching of three-phase systems. Furthermore, the intelligent processor features adaptive functionality, using feedback from voltage and current signals for synchronous calculations and issuing commands to enable the circuit breaker to switch on and off at any phase, meeting diverse application requirements.
Shaanxi West Power Tongzhong Electrical Co., Ltd.
Our address
Nanpo Village, Chencang Avenue Jintai District Baoji City, Shaanxi Province, China.
Phone Number
+86 18091766017(whatsapp)
xdtz05@westpowerelectric.com
