According to the provisions of 14.2 in DL / T596-1996, before thunderstorm season and when necessary, the metal oxide arrester of power plant and substation shall be tested for leakage current under DC 1mA voltage (U1mA) and 0.75u1ma. The zc-711 zinc oxide arrester DC parameter tester newly developed by our company is specially used to detect the internal defects of gapless MOA valve for 10kV and below power system.
The company has improved the instrument according to the field measurement requirements, organically combining DC high-voltage power supply, measurement and control system, reducing the volume and weight of the instrument. At the same time, the operation setting is more user-friendly, remote control measurement is realized by remote control, and the automatic measurement of ambient temperature function is added according to the requirements of measurement procedures, with large capacity memory, which can store 50 groups of test data without power loss.
Zc-711 zinc oxide arrester DC parameter tester is also equipped with high-speed thermal printer, which greatly improves the printing speed of test results. It is an essential equipment for field inspection of power system and zinc oxide arrester manufacturer.
When using zc-711 zinc oxide arrester DC parameter tester, the following precautions need to be understood:
1. Before the test, please connect the test object and press the "test" key! If the test error is prompted after pressing the test key, it indicates that there is a defect of poor contact in MOA, or the external wiring is not firm, check whether there is a problem in the external wiring, or carry out the next test after replacing the test object;
2. Before the test, please make sure that the internal battery is fully charged. If the undervoltage light is on, please charge in time. If the battery is under voltage for a long time, it will seriously damage the charged battery;
3. During the measurement, the high-voltage indicator lights up to indicate that there is high-voltage output and cannot be close to the high-voltage line. After the test, the internal automatic discharge of the instrument and other test high-voltage indicator lights are off, the test wiring can be removed or the test object can be replaced for the next test.
4. The printer equipped with this instrument is a thermal printer, so it is necessary to use thermal printing paper, and the printing paper can only print the content with a relatively smooth thermal surface.
5. The product must be packed during transportation. The packing box can be made of cartons or wooden cases. The packing box shall be padded with foam shock proof layer. The packed products shall be able to be transported by road, railway and air. It shall not be placed in the open truck during transportation. The warehouse shall be protected from rain, dust and mechanical damage.
6. When the instrument is not used at ordinary times, it shall be stored in a room with ambient temperature of - 20 ℃ ~ 60 ℃, relative humidity of no more than 85%, ventilation and no corrosive gas. Storage should not be close to the floor and walls.
7. In humid areas or wet seasons, if the instrument is not used for a long time, it is required to power on and charge it once a month (about two hours), so as to release the moisture and protect the components.
8. After the instrument is damaged, please stop using and inform the company immediately, and do not open the box for repair by yourself.
The above is the precautions for the use of zc-711 zinc oxide arrester DC parameter tester. You need to read carefully before use to avoid personal injury and prevent damage to this product or any other products connected with it.
Finally, we remind you that in order to avoid possible dangers, this product can only be used within the specified scope, and only qualified technical personnel can carry out maintenance and operation. If you don't understand, you can contact our customer service personnel at any time.
