Withdrawable Medium Voltage Switchgear
Introduction to Withdrawable Medium Voltage Switchgear
Safety, Flexibility, and Fast Service with Unisafe & Unigear Withdrawable Design
Withdrawable Medium Voltage Switchgear has air insulation in the cable and busbar sections, providing a modern and reliable solution for energy control and distribution in power networks. The withdrawable design allows easy and safe replacement of circuit breakers, resulting in reduced downtime, enhanced safety, and faster operation. These switchgears are designed and manufactured by Iran Transfo Substation development company according to international standards and the requirements of industrial, power plant, and building projects.
Features and Technical Specifications of Withdrawable Medium Voltage Switchgear
- Voltage Level: 12kV to 36kV
- Insulation Type: Air-insulated (AIS)
- Circuit Breaker: Motorized vacuum up to 2500A/31.5kA
- Protection System: Mechanical and electrical interlocks with protective relays
- Design Type: Withdrawable Metal Clad with fast service capability
- Degree of Protection: IP4X
- Expandability: From both sides of the switchgear
- Installation: Indoor
Main Components of Withdrawable Medium Voltage Switchgear
- Withdrawable vacuum circuit breaker
- Protective relays
- Capacitive divider and three-phase voltage indicator
- Split-core current transformer for protection and measurement
- Voltage measurement transformer
- Mechanical and electrical interlock system
- Earthing system
Applications of Withdrawable Medium Voltage Switchgear
- Key industries such as oil, gas, cement, petrochemical, steel, copper, and other heavy industries
- Power plants and critical points of the network
- Factories and production lines requiring fast service
- Critical centers such as hospitals and data centers
Advantages of Withdrawable Medium Voltage Switchgear
- Withdrawable Design: Facilitates servicing and replacing circuit breakers without affecting other feeders
- High Safety: Standard interlocks and IEC-compliant design
- Protection: Supports installation of various relays according to design and customer requirements
- Modular Design: Expandable from both sides of the switchgear
- Capacity: Achieves higher current and short-circuit levels
FAQ
- What is a Withdrawable Medium Voltage Switchgear?
- A switchgear with a withdrawable mechanism for installing vacuum circuit breakers, suitable for applications that require fast and safe service.
- What advantages does a withdrawable switchgear have compared to fixed switchgear?
- Due to its Metal Clad design, the cable section, circuit breaker, busbar, and low-voltage section are separated from each other. This allows for quick circuit breaker replacement, reduced maintenance time, increased operator safety, and operation at higher current levels.
- In what types of projects is this switchgear used?
- In critical projects such as hospitals, power plants, continuous production lines, vital centers, and heavy industries where downtime must be minimized.
- Is it possible to customize the protective equipment?
- Yes, protective relays, type of circuit breaker, and switchgear capacity can be fully customized according to project requirements and customer requests.
- Are withdrawable medium voltage switchgears safe?
- Yes, thanks to mechanical and electrical interlocks, full operator safety against potential faults is ensured.
- Do these switchgears have customization options?
- Yes, they can be specially designed and manufactured based on network structure, voltage level, protection requirements, and required equipment.