System Principles

When the soft start device detects an external start command, the microprocessor detects a synchronization signal and controls the phase angle trigger of the main circuit thyristor, gradually increasing the current and voltage at the motor end to smoothly start the motor. During this process, The RC resistance capacitance absorption unit absorbs the peak voltage of the thyristor during reverse turn off; The voltage sharing resistor controls the voltage of the thyristor to ensure that the voltage of each thyristor in the series circuit is equal. Fiber optic triggering ensures electrical isolation between the controller and the high-voltage thyristor, while also ensuring that the triggering signal is not affected by electromagnetic interference.

Technical characteristics

The soft start control system adopts a 32-bit CPU microprocessor, with efficient data processing. Adopting closed-loop control technology, it has strong overall control, high reliability, and complete protection functions. Featuring a rich, delicate and user-friendly human-machine interface with a large screen and concise menus. Supports multiple startup curve modes: voltage ramp start, current limiting ramp start, and sudden jump ramp start.

● Support adjustable starting torque and soft stop function (soft stop curve can be set)

●Equipped with multiple control methods such as two wire, three wire, remote control (485 communication), etc., it can meet the needs of users with different control methods.

●It has various fault protection functions such as phase loss, three-phase imbalance, startup timeout, startup overcurrent, operation overcurrent, and loss of load.

●The power module adopts a modular structure, and the thyristor and heat sink adopt a longitudinal stacked series structure, which has good heat dissipation performance and long service life.

●The device has a compact structure and can be directly integrated into 28 cabinets with a width of 800 or 1000 meters, making it very convenient for complete cabinet installation and component replacement and maintenance.

Introduction to Integrated High Voltage Solid State Soft Start Cabinet

The integrated high-voltage solid-state soft starter cabinet adopts the standard KYN28-12 central high-voltage switchgear, which combines the high-voltage operating cabinet and the high-voltage solid-state soft starter cabinet into one, with both soft start function and switch cabinet operation protection function; This not only saves installation space, but also facilitates the use of cabinets in customer distribution rooms, while also saving certain investment costs.

The integrated high-voltage solid-state soft starter cabinet is designed with a side in and bottom out wiring method, and the main switch device adopts the VS1 series handcart circuit breaker, which is safer and more convenient to use. Before putting it into operation, simply connect the high-voltage solid-state soft start device in series between the high-voltage busbar and the high-voltage motor

Introduction to High Voltage Solid State Soft Start Cabinet

The high-pressure solid-state soft start device is designed as a cold-rolled steel cabinet structure. The cabinet is designed in a cabinet inlet and outlet mode. Before being put into operation, it is only necessary to connect the high-voltage solid-state soft start device in series between the high-voltage switchgear and the high-voltage motor. This type of cabinet structure soft start can also be made into a solution for starting multiple motors with one soft start cabinet, simply adding one switching cabinet is sufficient. If there are multiple identical motors that are not far apart, it can save customers considerable costs.

*When placing an order, please inform our company of the product model, specifications, load conditions, and usage conditions in order to select the corresponding product.

*For users who have special functional requirements or special usage conditions for the product, please explain to our company when placing an order, and we will provide comprehensive services