The XJ-MC201D motor protector is designed to meet the needs of our company's intelligent manufacturing development in industries where electric motors are most commonly used, such as petroleum, chemical, smelting, steel, desulfurization and denitrification, power plants, and sewage treatment,

Analyze and study advanced technologies and design ideas for high-voltage protection and low-voltage protection, and provide a motor protector that integrates protection, control, measurement, metering, power quality analysis, fault recording analysis, and communication to a wide range of users.

The XJ-MC201D motor protector is suitable for motor circuits controlled by contactors.

Main features of the device

ØAdopting 32-bit high-performance embedded ARM as the CPU and adopting real-time multitasking embedded operating system;

ØAdopting high-performance software and hardware measurement technology to achieve both protection and measurement, with zero voltage and current.5Level, power and energy 0.5Grade, with a current of 10 times overload capacity.

ØHigh speed fieldbus transmission technology, using standard RS485 communication port CANCommunication port, supporting Modbus RTU protocol, coordinating communication between devices without the need for a management machine to convert data.

CThe AN interface is used in conjunction with CAS301 (CAN communication gateway) to achieve high-speed data transmission.

ØAdopting a large screen Chinese character LCD display with a user-friendly human-machine interface, it can display various measurement parameters, modify protection settings, 1000 operation reports, fault recording, etc;

ØThe LCD interface can display the motor wiring mode diagram;

ØProvide fault recording function and SOE events;

ØA high-performance motor protector that integrates protection, control, measurement, metering, power quality analysis, and communication;

ØComplete software and hardware self-test function.

Note:

1Vector zero sequence protection is for self-produced zero sequence current.

2. External zero sequence or leakage protection requires an external zero sequence transformer or leakage transformer. The use of the two protection functions should correspond to the "zero sequence" in the system settings/Select "zero sequence" or "leakage" in the selection of leakage current transformers.

Selection instructions for matching transformers

The transformer selection code is not displayed, and the corresponding design specifications are not provided for transformer codes that are not displayed.

Selection Description: Trinity400AAbove, split type transformers, busbar transformers, and zero sequence transformers are all optional, only400AThe following three in one transformers are standard transformers.

Ma Bao Design determines the specifications for motor shutdown when the current is less than10%When selecting the current specification for the motor, it is considered to be stopped. Therefore, please pay attention to the rated current of the motor when choosing the current specification.

matters needing attention:

1The specification current should be selected comprehensively based on the rated current, power factor, starting mode, and load conditions during starting of the motor.

2The aperture of different current specifications is indicated in the table. If there are special requirements (such as aperture and transformer wiring length), please indicate them when ordering.

3For renovation projects, the selection of current specifications should be differentiated according to the actual situation.

4Transformer standard wiring length3Rice. If longer is required, please specify in advance for customization.

5Customers can choose external transformers separately, and it is recommended to choose protective grade current transformers and secondary transformers5ATime optional6.3AUsed in conjunction with standard current transformers.

second1ATime optional1AUsed in conjunction with standard current transformers. If the customer does not choose protectionCTMotor protection selectionCTConsider the maximum starting current of the motorCTThe saturation level.

6Due toCTDifferent transformation ratios, The hardware sampling circuit design is different, so the current transformer needs to be used with devices of the same specifications.

ØOn the panel where the instrument needs to be installed, open one91mm×91mmSquare hole with terminal block installation depth95mm）；

ØRemove the installation clips on both sides after removing the device, and then insert it into the device hole from the front;

ØInstall the installation clips from the rear along the groove in the middle of the equipment, and push the clips forward to tighten them.

The external dimensions of the product are shown in the figure: