I believe that when we use the wireless secondary load and voltage drop tester, we must also have encountered many problems, resulting in slow work efficiency and repetitive work. Therefore, this paper specifically answers the common problems and solutions of wireless secondary load and voltage drop tester.
Before answering the questions, let's first understand the performance of wireless secondary load and voltage drop tester, also known as transformer voltage drop tester, which can be used for the secondary voltage drop measurement test of voltage transformer and current transformer by wireless secondary load and voltage drop tester, as well as for energy measurement, power inspection, power inspection, transformer maintenance and relay protection It is used on site for isochronous detection and start-up test.
The wireless secondary load and voltage drop tester is composed of two hand-held measuring terminals, which can measure the amplitude and phase of six channels of voltage wirelessly and synchronously, and can also be used as a three-phase volt ampere phase meter alone. The wireless secondary voltage drop tester adopts the button type operation, which can automatically switch the range, realize the large capacity storage and display the vector diagram, which is very suitable for power measurement, power inspection and power supply Inspection, transformer maintenance, relay protection and other differential detection, start-up test are used on site. It can be used as training tool and teaching instrument for wiring discrimination in electric power colleges. At the same time, it is also suitable for large-scale power consumption enterprises such as chemical industry, metallurgy, mining, railway, etc.
Here are the common problems and solutions of wireless secondary load and voltage drop tester:
1 no display after power on:
Solution: battery does not have electricity? Please connect the external charger first. If it still can't work, please stop using it immediately. Contact the manufacturer. Please don't turn on the instrument by yourself, or you may not enjoy the warranty service.
2 during the test, the data is unstable:
Please check whether the wiring is correct, whether the wiring is in good contact, and whether there is particularly large interference around.
3. The load is negative during the load test: Please reverse the clamp table.
4. The voltage drop test of the secondary circuit of the voltage transformer is generally carried out on the site under the actual load operation. Therefore, it is necessary to strictly implement the relevant contents of the safety regulations for electric power industry (power line part);
5 it is strictly prohibited to ground the secondary circuit of voltage transformer at two points to prevent the equipment from being damaged due to the short circuit at the secondary side of voltage transformer.
6 before use, check whether the insulation between the cores of the special measuring wires is good, whether the wires are well connected, and whether the contact between the terminals and the wires is firm and intact by using the insulation resistance meter (or multimeter);
7 after the pressure drop is tested, if it is necessary to test the secondary load, it is necessary to remove the line and replace it with a special line for the test load to test the load.
Do not let the instrument get wet by the rain or be under heavy pressure.
Zc-106c wireless secondary load and voltage drop tester developed by our company can complete the high-precision measurement of three-phase voltage, current, phase, frequency, power, power factor, three-phase imbalance and other electrical parameters, with the advantages of small volume, light weight, easy to carry, simple wiring, accurate test and so on. The use process is not easy to have problems, it is worth buying!
