An insulation resistance detection system
A technology of insulation resistance and detection system, applied in the direction of very high resistance measurement, measurement of resistance/reactance/impedance, measurement devices, etc., can solve the problems of inability to report in time, degradation of equipment insulation performance, inability to take protective measures actively, etc. The effect of preventing accidents, preventing occurrence and ensuring safety
Active Publication Date: 2021-11-16
EON CHINA (BEIJING) TECH CO LTD
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[0003] In view of the above-mentioned problems in the prior art, the present invention provides an insulation resistance detection system, which aims to solve the technical problem that the degradation of the insulation performance of the equipment cannot be reported in time and protective measures cannot be actively taken
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[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be clear to those skilled in the art that the specific embodiments described here are only for describing the technical solutions and principles of the present invention more clearly, and do not constitute a specific limitation to the present invention.
[0017] figure 1 A schematic diagram of a specific embodiment of the insulation resistance detection system according to the present invention is shown. The insulation resistance detection system of this specific embodiment is used to detect the insulation resistance value of the DC power supply to the ground, and the system includes a host computer 100, a microprocessor 200, a voltage sampling circuit 300 and a device under test 400, wherein the output of the DC ...
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The invention discloses an insulation resistance detection system, which is used to detect the insulation resistance value of a DC power supply to the ground. The system includes a host computer, a microprocessor, a voltage sampling circuit and a device under test, wherein the output voltage of the DC power supply is applied On the device under test, the host computer is used to generate insulation resistance detection instructions, the microprocessor communicates with the host computer and receives the instructions, the microprocessor is connected to the voltage sampling circuit and controls the voltage sampling circuit according to the instructions to collect the insulation resistance on the device under test. The voltage sampling circuit transmits the collected voltage value to the host computer through the microprocessor in real time, and the host computer calculates the insulation resistance value according to the predetermined algorithm according to the voltage value. The insulation resistance detection system of the present invention can report the degradation of the insulation performance of the equipment to the ground to the host computer in a timely manner, and can actively cut off the voltage of the DC power supply in time when the insulation performance of the equipment to the ground decreases, ensuring the safety of the testers , to prevent accidents.
Description
technical field [0001] The invention generally relates to the field of equipment insulation testing, in particular to an insulation resistance testing system. Background technique [0002] When the Battery Management System (Battery Management System) is performing a Hardware-in-Loop test, the total voltage power supply of the battery pack is a high-voltage DC power supply, and the insulation drop of the high-voltage DC power supply to the ground is a common fault during operation. Timely alarm and eliminate it. Once multi-point grounding is formed, it may cause signal or relay protection device to malfunction and cause an accident. In order to prevent false tripping and safety accidents that may occur due to system grounding, it is necessary to configure an insulation detection device in the DC system to detect the insulation resistance of the busbar to ground. The existing insulation resistance detection device cannot report the decrease of the insulation resistance in ti...
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IPC IPC(8): G01R27/02G01R27/14
CPCG01R27/025G01R27/14
Inventor 宋六环李影博
Owner EON CHINA (BEIJING) TECH CO LTD