The steps for fault diagnosis of on-load tap changer tester usually include the following steps:
1. Preparation stage
① Understand equipment information:
Get basic information such as model, specification, manufacturer, etc. of on-load tap changer tester.
Consult the instruction manual and maintenance manual of the equipment to understand the structure, working principle and common faults of the equipment.
② Prepare tools and equipment:
Prepare necessary test tools, such as multimeter, oscilloscope, insulation resistance tester, etc.
Ensure that the power supply, connecting wires and other accessories of the tester are intact and usable.
2. Preliminary inspection
① Appearance inspection:
Check whether the shell, display screen, buttons and other components of the tester are intact, without damage or deformation.
Check whether the connecting wires are intact, without damage or exposure.
② Power supply check:
Confirm whether the power supply of the tester is on and whether the voltage meets the requirements.
Check whether the power indicator light is on and confirm whether the power supply is normal.
3. Functional test
① Power-on self-test:
Turn on the power switch of the tester and perform power-on self-test.
Observe whether there are any error prompts or abnormal phenomena during the self-test process.
② Parameter setting:
According to the test requirements, set the relevant parameters of the tester, such as test current, test time, trigger resistance, etc.
After confirming that the parameter settings are correct, start the test.
③ Waveform test:
Observe the waveform curve displayed by the tester to determine whether the waveform is stable and continuous.
Compare the waveform with the standard waveform to analyze whether the waveform is abnormal or distorted.
4. Fault diagnosis
① Analyze test data:
According to the test data displayed by the tester, analyze whether each parameter is within the specified range.
Compare historical test data to determine whether the performance of the equipment has changed.
② Find the fault point:
Based on the test data and waveform analysis, determine the possible fault point.
Use tools such as multimeters and oscilloscopes to further detect the fault point.
③ Troubleshooting:
According to the situation of the fault point, take corresponding maintenance measures, such as replacing damaged parts, adjusting parameters, etc.
After the maintenance is completed, retest to confirm whether the fault has been eliminated.
5. Summary and Recording
① Summarize the causes of the failure:
Comprehensively analyze the failure and determine the root cause of the failure.
Propose improvement measures to prevent similar failures from happening again.
② Record the maintenance process:
Record the operating steps, test data and maintenance results in detail during the maintenance process.
Save the maintenance records in the equipment file for subsequent review and reference.
Through the above steps, the fault of the on-load tap changer tester can be systematically diagnosed, and effective maintenance measures can be taken to ensure the normal operation of the equipment. At the same time, it can also provide strong support for the preventive maintenance and maintenance of the equipment.
ZC-220 transformer on load tap changer tester is mainly used to measure the transition waveform, transition time, instantaneous transition resistance value, three-phase synchronization, etc. of transformer on load tap changer. The instrument has small volume, light weight and strong anti-interference ability, which greatly reduces the labor intensity of on-site staff. It is an ideal instrument for power generation and power supply units and transformer manufacturing industry to ensure safe production and improve product quality.
Kvtester Electronics Technology Co.,Ltd. is a high-tech enterprise specializing in power testing, testing, research and development, production, and sales of testing equipment. It has been engaged in the electrical testing industry for many years, and its products are of high quality. We welcome customers to come and purchase. Service hotline: 0086-27-81778799, to learn more, visit the official website: www.kvtester.com
