WGD-440-120AC

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The WGD-440-120AC is a type of protection relay, which is designed to provide protection against a wide range of hazards and to ensure the safe operation of electrical systems. Protection relays are generally used in applications that require the efficient detection of potential faults and their subsequent remedial action to avoid damage or disruption.

The WGD-440-120AC is specifically designed as an internal protection relay for the operation of electrical motors. It features a wide range of functions and capabilities, including motor protection, overload protection and circuit breaker interlocking. It also provides a high level of safety, reliability and economical performance.

In terms of its application field, the WGD-440-120AC is often used as an internal overload protection device in low voltage electrical motors. It is used to detect overcurrents within the motor’s winding circuit and to trip the circuit breaker. It can also be used to provide automatic restart protection against high overload currents.

The protection relay also includes a range of additional safety features, such as adjustable current settings, contact time delay, voltage protection, anti-arcing, ground fault detection and overload warning. All of these features help to ensure that the motor’s operation is safe and reliable.

The WGD-440-120AC operates using a direct-current (DC) control circuit. This circuit detects sounds, such as the noise produced by the motor, and sends a signal to the protection relay, which then trips the circuit breaker if the maximum set point is exceeded.

The WGD-440-120AC protection relay also uses two independent voltage inputs, both measuring the voltage across the motor windings. The first input relays the voltage source that the motor is using while the second one tracks the voltage that’s being delivered to the motor’s windings. The interrogation process compares the two voltages in order to check for the presence of fault-causing energized conductors on the windings.

In conclusion, the WGD-440-120AC is a protection relay that provides comprehensive motor protection. It is ideal for use as an internal protection device in low voltage motors, providing reliable and efficient overload protection. The relay also features a number of additional safety features, such as adjustable current settings, contact time delay, voltage protection, anti-arcing, ground fault detection and overload warning to ensure its safe and reliable operation.

The specific data is subject to PDF, and the above content is for reference