1. Taking the occurrence failure of RCS-931 line protection device as an example, the whole test module of Jibao Star-S60 handheld relay protection test system is used to introduce the verification method of acceleration after reclosing. Secondary Protection star-S60 handheld relay protection test system protection related Settings () Protection fixed value setting:
2, briefly describe the comprehensive protection measurement and control device to check the DC power supply air switch in the circuit breaker cabinet to check whether the operation indicator light on the device panel is normal. The device is charged normally. Equipment relay protection calibrator is used.digimer. One group of current test wire and 1 group of voltage test wire approve the fixed value of the protection device respectively, and the return situation of the soft pressure plate is consistent with the fixed value sheet. Check the return of the tripping pressure plate and soft pressure plate at the outlet of the protection device and record all the soft pressure plate and drop the corresponding pressure plate for the protection. Remove the original action report of the protection device. Open all the required analog terminals. Sampling and inspection of the protection device. Open the current terminal connection sheet. Open the voltage terminal connection sheet.
3. First, insert the power cord of the relay protection tester into the AC220V power socket, turn on the power supply of the host, and the industrial controller starts the Windows XP operating system. After the start, the host will automatically enter the main interface of the tester software. Then, connect the current and voltage circuit, and then open the power supply switch, if necessary, also want to connect the input quantity, select the corresponding software module for test. Then, when using the relay protection tester, it should be noted that when the current circuit is connected, there may be an ignition phenomenon, which is normal, do not have to worry about. The current circuit has an AC voltage of about 20V. When the loop is short-connected, the voltage automatically disappears. If you want not to appear the ignition phenomenon, you can turn off the power supply switch, and then connect the line of the current circuit, and then open the power supply switch, so as to avoid the ignition phenomenon., Check that the wiring is correct. When the current open circuit indicator is red, the phase current circuit wiring is wrong; when the voltage short circuit indicator is red, the phase voltage circuit wiring is wrong.
4, relay protection inspection management system. The regular inspection and inspection system is the guarantee to improve the quality of protection and verification, and puts forward clear provisions for the newly operational and operational protection devices from the inspection cycle to the inspection specification. The verification process shall refer to the Inspection Regulations on Relay Protection and Power Grid Safety Automatic Device " and the specific inspection procedures. This system applies to XXX hydro power plant.