PSR37-600-11 1SFA896110R1100 ABB Soft Starter

PSR37 - 600 - 11 1SFA896110R1100 is a soft starter produced by ABB. Here is some information about it:

Basic functions:

Soft start function: By controlling the conduction angle of the internal three-phase anti-parallel thyristor, the input voltage of the controlled motor gradually increases from zero value within the set time according to the preset function relationship, so that the motor starting torque gradually increases, and the speed also gradually increases, reducing the impact on the power grid and the wear on the machine during the motor starting process.

Soft stop function: After receiving the shutdown command, the thyristor gradually reduces the conduction angle from full conduction, and after a certain period of time until it is fully closed, the motor is soft stopped to better protect the motor and load.

Protection function: It has multiple protection functions such as overload protection, phase loss protection, and overheating protection. When the motor is overloaded, the three-phase power supply is phase-lost, or the temperature of the soft starter is too high, the soft starter will take corresponding protection measures, such as cutting off the motor power supply, issuing an alarm signal, etc., to protect the motor and the soft starter itself from damage.

Parameter settings:

Electrical parameters: including rated working voltage, rated supply voltage, rated control voltage and rated current. Common rated working voltages include 208V, 220V, 380V, 400V, 690V and other different levels, which need to be selected according to the application scenario and the rated voltage of the motor; the rated supply voltage is generally 100V to 250V (AC), which is the working voltage of the internal control circuit of the soft starter; the rated control voltage is usually in the range of 100V - 250V, 50/60Hz AC voltage; the rated current is selected according to the rated current of the motor, for example, there are different specifications such as 30A, 45A, 105A, etc.

Time parameters: The starting time can be set within a certain range. The starting time setting range of the PS series soft starter is usually 1s - 30s; the ramp down time (stop time) is generally set in the range of 0s - 30s, and the stop time range of some models may be wider, such as 5s - 240s; the starting voltage rise time can also be adjusted, affecting the smoothness of the motor starting process.

Voltage parameters: The initial starting voltage is usually expressed as a percentage of the power supply voltage and can be adjusted in the range of 30% - 70% of the power supply voltage. After the current limiting function is used in some models, the initial voltage is fixed at 40% of the power supply voltage at start-up; the starting limit current is generally 1.5 - 5 times the rated current of the motor, which can be set according to the model and application scenario of the soft starter.

Application scenarios: It is widely used in motor transmission equipment in metallurgy, chemical industry, construction, cement, mining, environmental protection and other fields. It is an ideal replacement product for traditional star-delta and auto-coupling step-down starters. For example, in the startup control of motors, fans, water pumps and other equipment on some industrial production lines, it can effectively reduce the starting current, reduce the impact on the equipment and the power grid, extend the service life of the equipment, and improve the stability and reliability of the system.