1. Large flow rate of zinc oxide lightning arrester
This is mainly reflected in the ability of the lightning arrester to absorb various lightning overvoltage, power frequency transient overvoltage, and switching overvoltage. The flow capacity of Tuopu Electric fully meets or even exceeds the requirements of national standards. The indicators such as line discharge level, energy absorption capacity, 4/10 nanosecond high current tolerance, and 2ms square wave current capacity have all reached the advanced level in China.
2. Zinc oxide lightning arrester has excellent protective characteristics
Zinc oxide lightning arrester is an electrical product used to protect various electrical equipment in the power system from overvoltage damage, with good protective performance. Due to the excellent nonlinear volt-ampere characteristics of the zinc oxide valve disc, only a few hundred microamperes of current can pass through it under normal operating voltage, making it easy to design a gap free structure, thus having good protective performance, light weight, and small volume. Features.
When overvoltage invades, the current flowing through the generator rapidly increases, and the amplitude of overvoltage is first processed to release the energy of overvoltage. Afterwards, the zinc oxide valve plate returned to a high resistance state, allowing the power system to operate normally.
3. Good sealing performance of zinc oxide lightning arrester
The lightning arrester components adopt good aging performance. High quality composite jacket with good air tightness, using measures such as controlling sealing ring compression and adding sealant. Using ceramic sleeves as sealing materials ensures reliable sealing and stable performance of the lightning arrester.
4. Mechanical properties of zinc oxide lightning arrester
The following three factors are mainly considered:
① The seismic force borne;
② The maximum wind pressure acting on the lightning arrester
③ The maximum allowable tensile force of the conductor borne by the top of the lightning arrester.
5. Zinc oxide lightning arrester has good decontamination performance
The gapless zinc oxide lightning arrester has high pollution resistance. At present, the creepage distance level specified in the national standard is: Class II medium pollution area: creepage distance 20mm/kV; Level III heavily polluted area: Creepage distance 25mm/kV; Class IV extremely polluted area: creepage ratio is 31mm/kV;
6. High reliability of zinc oxide lightning arrester operation
The reliability of long-term operation depends on the quality of the product and whether the product selection is reasonable. The quality of its products is mainly affected by the following three aspects: ① the rationality of the overall structure of the lightning arrester; ② Volt ampere characteristics and aging resistance characteristics of zinc oxide valve plates; ③ Sealing performance of lightning arrester.
7. Power frequency withstand voltage capability of zinc oxide lightning arrester
Due to various reasons such as single-phase grounding, long line capacitance effect, and load in the power system, it can cause an increase in power frequency voltage or generate transient overvoltage with large amplitude. The lightning arrester can withstand a certain power frequency voltage for a certain period of time, increasing its capacity.
The ZC-710B zinc oxide lightning arrester tester is a specialized instrument used to test the electrical performance of zinc oxide lightning arresters. This instrument is suitable for live or power outage detection of zinc oxide lightning arresters of various voltage levels, so as to timely detect dangerous defects such as insulation moisture and valve aging inside the equipment.
The instrument is easy to operate and easy to use, and the entire measurement process is controlled by the human-machine interface. It can measure the full current, resistive current and its harmonics, power frequency reference voltage and its harmonics, active power and phase difference of the zinc oxide arrester. The large screen can display the true waveform of voltage and current. The instrument utilizes digital waveform analysis technology and software anti-interference methods such as harmonic analysis and digital filtering to ensure accurate and stable measurement results. It can accurately analyze the content of fundamental and 3rd to 9th harmonics, overcome the influence of phase interference, and accurately measure the resistive current of the side phase lightning arrester.
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
