Benshaw Soft Starters
Benshaw soft starters are designed to provide controlled motor starting, ensuring smooth acceleration and deceleration for a wide range of industrial applications. By gradually ramping up voltage to the motor, Benshaw soft starters reduce mechanical stress, limit inrush current, and prevent sudden torque surges, protecting both the motor and connected equipment. This controlled start-up process is ideal for applications like pumps, fans, compressors, and conveyors, where direct online starting could cause excessive wear or damage.
Known for their durability and reliability, Benshaw soft starters are often used in demanding environments such as mining, oil and gas, water treatment, and manufacturing. They are built to handle heavy-duty applications and are equipped with advanced features like motor protection, thermal overload protection, and fault detection, ensuring safe operation even under challenging conditions. Some models include built-in bypass contactors, which improve efficiency by reducing heat generation during steady-state operation.
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More Information about Benshaw Soft Starters
Benshaw soft starters are also easy to install and configure, offering user-friendly interfaces that simplify setup and reduce downtime. They support various motor sizes and voltages, providing flexibility for both small and large-scale operations. With advanced control features, Benshaw soft starters enhance the overall efficiency of motor-driven systems while extending the lifespan of the equipment. In addition, their compatibility with modern communication protocols allows for seamless integration into automated systems, enabling real-time monitoring and diagnostics for improved operational efficiency.
Motor Starters, Soft Starters and VFDs
Motor Starters
Motor starters safely start and stop a motor in industrial applications. They are designed with a contactor, overload and circuit protection. They are used when basic motor control is required, where torque on the motor is not a concern and speed control is not needed. The advantages of motor starters include: lower cost, allows for remote operation, allows for monitoring of motor state (with the use of auxiliary contacts) and they are safe and efficient. The disadvantages include: high inrush current that can cause fuses to blow and breakers to trip if the inrush is too high, and the starter will allow a full torque to start the motor which can cause the motor to ramp up to full speed very quickly potentially causing the motor to wear and degrade prematurely.
Soft Starters
Soft starters protect motors from inrush current by gently ramping up the motor to full speed. They provide all of the same functions as a traditional motor starter. The advantages of soft starters include: they are less expensive than a VFD when only startup control is needed, they are a smaller system than a VFD where space is a concern and they prevent unwanted torque upon startup, prolonging the life of the motor. The disadvantages include: they are more expensive than a traditional motor starter and they do not allow for full speed control.
VFDs
Variable Frequency Drives (VFDs) allow for the slow ramp up of a motor during startup and the slowing down of the motor during shutdown. They also allow for full speed control during the entire run cycle of the motor. VFDs provide the same functions as both the traditional motor starters and soft starters. The advantages of VFDs include: full speed control (start, stop and in-between), more custom control and monitoring, energy savings due to efficient motor usage and less wear and tear on the motors. The disadvantages include: they are more expensive and larger than other motor control options and they generate heat that may require fans or AC units.