Vacuum Transfer Switch
11Pages

B5 Vacuum Transfer Switches CONTENTS Features····················································································· B5-02 Ratings······················································································· B5-04 Appli

Vacuum Transfer Switches, VTS 7.2kV, 400/600A

Vacuum Transfer Switches barrier that improved the insulation and is built-in with an electrical and Vacuum Transfer Switches VITZRO EM Vacuum Transfer Switch uses a vacuum interrupter and BMC mechanical interlock device and an over-current lock device. It is a power transfer switch that can prevent failures due to an interruption faults in case of a short circuit and over-current conduction. An electrical and mechanical interlock is built-in. T here are no malfunctions since the transfer device is equipped with the electrical and mechanical interlock. I t is easy to design since there is...

Ratings / Application Fixed Type Draw-Out Type Rated Current Rated Voltage Rated Closing Current Lock Current Operational Cycle Rated Current Switch Continuous No-Load Switch Transfer Sequence Main Circuit-Earth Power Frequency Withstand Voltage Between PhaseShifting Main Circuits Between In-Phase Main Circuits Control Circuit-Earth Impulse Withstand Voltage Main Circuit-Earth Between PhaseShifting Main Circuits Between In-Phase Main Circuits Operation Mode Operating Power Magnetic Operation(Instantaneous Excitation Mode) External Dimensions & Weight Weight Fixed Type Draw-Out Type Fixed...

Vacuum Transfer Switches B5-05 Vacuum Transfer Switches Comparison on Equipment Application VTS Type Transfer Switch Transfer using Mounting Type Switch Product Price Built-in with an electrical and mechanical interlock, Instantaneous Excitation Mode Built-in with an electrical and mechanical interlock, Instantaneous Excitation Mode It requires a mechanical interlock to ensure safety when using Medium Price High Price It is possible to install 3 VTS+VCB at one side of cubicle which is the minimum installation space It requires at least 2 sides since it can install 3 Mounting Type+VCB It...

Application On MV Power Transfer Example on Power Transfer Circuit Currently, there are no standardized opinions and regulations on circuit composition and equipment used for the medium-voltage power transfer (2-line circuit, power-receiving commercial power-emergency power transfer, commercial power - isolated power generation transfer) and the designers are responsible for the selection of methods and equipment, so their role is critical. The following is an example on the power transfer circuit. Reasons for Using a Switch for Power Transfer According to the「MV Power-Receiving Equipment」...

Vacuum Transfer Switches Cradle Diagram (1) When VTS is used (2) When 2 circuit breakers are used ※Section Point → When a switch is used, it has a disconnecting function. ※Section Point → When a switch is used, it has a disconnecting function. * Section Point → Theoretically, it requires a section switch (disconnecting) function like the demarcation point. ※Section Point → When a switch is used, it has a disconnecting function. * Generally, there is an electrical interlock for 2 CBs and it is very risky if there is no mechanical interlock. Example on VTS Application (1) Example on...

Application On MV Power Transfer Operation Flow in case of a Commercial Power Failure Operation Flow in case of a Commercial Power Recovery (2) Example on Commercial Power-Emergency Power Transfer (2-line circuit power receiving) A commercial power-emergency power transfer circuit and its operation are marked on figure5, but it is rare in new cases, rather used by remodeling the existing installation. In this case, there are no restrictions on transfer time and so forth, but the time should be set according to the number of contact relays, section switches and so on to prevent the...

Vacuum Transfer Switches Vacuum Transfer Switches Surge Protection when Using VTS Operation Flow in case of a Commercial Power Failure * 1: CR S/A * 2: ZNR S/A A vacuum device interrupts arc at a high-vacuum state so it has an excellent breaking capability due to the high dielectric strength of vacuum and the high-speed diffusion of arc. However, when switching the rotating machines such as no-load motors and generators or switching the transformers, the current is interrupted before it reaches a zero point. This generates an over-voltage due to the current chopping and it may destruct the...

Control Circuit Diagram & Dimensions Control Circuit Diagram Name CC : Closing Coil TC : Trip Coil AUX : Auxiliary Switch CR : Closing Control Relay XR : Interlock Relay Ma : Check Switch IL : nterlock Contact (Draw-out Type) I OCL : Over-current Lock Contact A Power Source * When composing a circuit using an operating transformer at operating power, a display lamp should be connected to the