BD-20D Rotor Ground Protection Relay.
1. Product Overview.
BD-20D rotor grounding protection relay is a kind of protection device specially designed for rotor circuits such as generators and motors in power systems. The product adopts advanced microprocessor technology, has the characteristics of high precision, high reliability and high sensitivity, and can be widely used in motor protection and control systems in electric power, metallurgy, coal, petroleum and other industries.
Second, product features.
1.High-precision measurement: The advanced AD converter and filtering technology can accurately measure the ground resistance and ground potential of the rotor circuit, avoiding the error and instability of the traditional analog circuit measurement method.
2.Multiple protection methods: A variety of protection methods can be set according to user needs, such as grounding protection, phase failure protection, reverse sequence protection, etc. At the same time, it can also realize conventional motor protection functions such as overload protection and short-circuit protection.
3.Fault memory function: The product has a built-in non-volatile memory, which can record the latest fault information, which is convenient for users to query and analyze the cause of the failure.
4.Remote monitoring: support a variety of communication interfaces, such as RS485, CAN bus, etc., can exchange data with host computer or PLC and other equipment to achieve remote monitoring and operation.
5.Easy installation: The product adopts modular design, small size, light weight, easy installation and commissioning.
Third, the working principle.
BD-20D rotor grounding protection relay comprehensively analyzes and judges whether the motor is in normal operation by measuring the current and voltage in the rotor circuit, as well as the parameters such as the ground resistance and ground potential of the rotor. When a grounding fault occurs, the protection function of the product will be triggered to cut off the power supply in time to avoid greater damage to the motor caused by the expansion of the fault.
4. Precautions for use.
1.The product should be installed in a dry, dust-free environment without severe vibration and shock.
2.During use, the appearance of the product should be checked regularly to see if it is intact and whether there are any abnormal sounds or odors.
3.When debugging or repairing, it must be operated by professional and technical personnel to avoid personal injury or equipment damage.
4.When installing and wiring, it should be operated in strict accordance with the requirements of the product manual to ensure that the wiring is correct, firm and reliable.
5.In the process of use, the protection parameters should be adjusted in time according to the actual situation to ensure that the protection effect of the product reaches the best state.
6.The product should be maintained and maintained regularly, such as cleaning the surface, checking whether the wiring is loose, etc. During maintenance and maintenance, attention should be paid to safety precautions, such as turning off the power supply and avoiding live operation.
7.In the process of use, if you encounter any problems or doubts, you should contact the manufacturer or professional and technical personnel for consultation and treatment.
I heard that it is popular now