VS-VSKT71/14

Thyristors - SCRs - Modules

VS-VSKT71/14 is a Silicon controlled rectifier (SCR) module that is intended for use in a medium-voltage, high-current applications. Its rugged construction allows for reliable switching of large amounts of power. This module is commonly used in power systems, motor control systems, variable frequency drives, and other power-electronics applications.

The VS-VSKT71/14 device consists of four SCRs connected in inverse parallel, with a stud type, center mount for high thermal dissipation. It operates either in phase control mode or triggered mode, providing controllable power control, with minimal losses. With its high current capability, it can be used to switch from a few amperes up to 200A continuous.

In inverse parallel configuration, the four internally connected SCRs allow for a combined current rating of up to 200A. This configuratiom maintains high switching rates, even when connecting high voltages, up to a maximum of 1500V in the blocking direction. The internal configuration also reduces voltage stress, ensuring the reliability of the module.

The VS-VSKT71/14 is triggered by current pulses, eliminating the need for a separate gating signal. The internal triggering circuit activates the SCRs when the current exceeding a certain threshold. This makes the module especially suitable for alternating current applications, since the current signal is always available. The same current pulses can be used to switch the power off in a few microseconds.

As a direct replacement for manual switches, these devices substantially reduce switch time delay and power loss. With the fast switching time, the VS-VSKT71/14 module can increase the speed and accuracy of the power system. The internal current-driven power switch also increases system reliability during overloading.

The VS-VSKT71/14 module can also be used in motor control systems to provide smooth, consistent acceleration and deceleration. By controlling the field current, they provide accurate speed control of AC motors. This ensures an efficient, motor-drive system with minimal losses and less wear and tear.

This type of device is widely used in a variety of power-electronics applications. It can be used as a direct switch for loads, or as a power-control option in applications such as power supplies, radiation detectors, safety systems, and traction drives. The VS-VSKT71/14 module is able to provide its intended power handling capacity, making it a reliable and cost-effective choice for anyone looking for a high-power control solution.