product description:
the unt-mmi-b-w motor integrated protector is mainly used in the low-voltage motor control loop to realize various protection, monitoring and control functions for the motor, and can realize remote monitoring of the motor circuit through the field bus.
monitoring function:
after filtering and calculating the collected phase current data in the device, the liquid crystal of the device panel can display the a phase current, the b phase current, the c phase current, the zero sequence current, the positive sequence current, the negative sequence current, the leakage current, and the superheat percentage. , measurement of imbalance.
4~20ma remote transmission function:
the device has a built-in optically isolated 4~20ma output interface, and the corresponding output can be selected to any one of the ia, ib, and ic physical quantities to be transmitted to the remote control center to realize the telemetry function.
event logging function:
the type of event recorded by the device is a protection action event. record the latest accident information, including the type of accident and the analog information at the time of the accident. the power loss content is not lost.
protective function:
the device can be easily controlled on the switchgear by means of a control button arranged on the switchgear. motor integrated protector has 11 kinds of protection for users to choose
overheat protection overcurrent protection ground protection locking protection phase sequence protection
unbalance protection over-break protection te protection phase loss protection leakage protection start too long protection
communication function:
it has rs485 communication exit and adopts modbus communication protocol. analog information and fault information such as ia, ib, ic, io, ie, if, il, and gr can be transmitted. the accident can be reset by remote control via communication.