DSP-2SD digital motor protection relay

DSP 3SD motor protectorWith MCU basic digital control as the technical core, precise protection of motors is achieved from the root, which is different from the extensive monitoring of traditional protective equipment. It can capture subtle current anomalies during motor operation in real time, making protection actions more timely and accurate, and avoiding motor failure risks from the source. The front of the equipment is equipped with an LED display screen, which can clearly and intuitively display the L1, L2, and L3 three-phase driving currents. When operating in single-phase mode, the maximum value of the L1 and L3 phase detection currents is automatically displayed. When operating in three-phase mode, the three-phase currents are cyclically displayed at 3-second intervals. The real-time running status of the motor is clear at a glance, without the need for additional professional testing equipment. Operation and maintenance personnel can quickly grasp the equipment working conditions, greatly improving on-site inspection efficiency.

As a professional equipment specializing in 3E and 4E (3SD-RG) protection,DSP 3SD motor protectorThe protection function of the motor achieves full dimensional coverage, which can accurately detect and deal with common motor faults such as overcurrent, phase loss/constraint, reverse phase, and current imbalance. The exclusive trapping protection function can also achieve residual current image current detection, while supporting angular current and shake point display, achieving "full coverage" and safeguarding motor safety for various explicit and implicit hidden dangers during motor operation. The equipment is equipped with a 4-digit window, which clearly displays the reason for tripping in the form of letters and numbers, without the need for cumbersome fault diagnosis processes