BD-31 Low Current Grounding Relay.
1. Product introduction.
BD-31 Low Current Grounding Relay is a kind of insulation monitoring device specially designed for use in neutral ungrounded systems. The device can monitor the insulation resistance of the system to the ground in real time, and when a single-phase grounding fault occurs, the device can quickly send out an alarm signal, so that the operator can find and deal with the fault in time, so as to ensure the safe and stable operation of the system.
Second, product features.
1.Real-time monitoring: BD-31 low-current grounding relay can monitor the insulation resistance of the system to the ground in real time, which is not affected by the operation mode of the system, and ensures that single-phase grounding faults are found in time.
2.High sensitivity: The device adopts advanced detection technology, has high sensitivity, and is able to send an alarm signal at a lower insulation resistance.
3.High reliability: BD-31 small current grounding relay has high reliability, and adopts software and hardware dual protection mechanism, which effectively avoids false alarms and false negatives.
4.Easy maintenance: The unit has a simple maintenance process, which can be easily carried out by the operator for routine maintenance and regular inspections.
5.Remote monitoring: BD-31 small current grounding relay supports remote monitoring function, and the detection data can be transmitted to the main control room through the communication interface, which is convenient for the operator to fully grasp the insulation status of the system.
Third, the working principle.
BD-31 small current grounding relay uses zero sequence current transformer as a detection element, when a single-phase grounding fault occurs in the system, the zero sequence current transformer can sense the zero sequence current and convert it into the corresponding electrical signal to the processor of the device. Through the analysis and processing of electrical signals, the processor judges the existence of grounding faults and sends out corresponding alarm signals.
Fourth, the use of environment and precautions.
1.Environment: BD-31 low-current grounding relay is suitable for insulation monitoring in neutral non-grounding systems, such as power supply systems in electric power, metallurgy, chemical and other industries. The use environment should avoid harsh conditions such as strong magnetic field interference, high temperature, humidity, etc.
2.Precautions: During installation and use, please note the following:
a) Please install and use the device correctly according to the requirements of the product manual to avoid damage or failure of the device caused by misoperation
b) When carrying out daily maintenance and regular inspection, please pay attention to check whether the appearance of the device is in good condition, and contact the manufacturer or professional maintenance personnel in time if there is any damage or abnormality
c) During operation, if the device is found to be faulty or abnormal, please stop using it immediately and contact the manufacturer or professional maintenance personnel for treatment
d) Do not connect irrelevant equipment or change the wiring connection of the device on the device, so as not to affect the normal operation of the device or cause potential safety hazards;
e) During use, if you need to upgrade or modify the configuration of the device, please be sure to operate it under the guidance of professionals to avoid unnecessary losses or potential safety hazards.
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