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Product — Series resonance test system — Inductive series resonance test equipment
Product name：Inductive series resonance test equipment
Executive standard：GB/T 16927，GB50150-2006，DL/T849.6-2004
Other name：Series resonance reactor, series resonance and AC withstand voltage test equipment
Component：Inductive reactor, excitation transformer, voltage divider, control and measurement system (intelligent or electric), voltage regulator
During partial discharge test：Optional partial discharge instrument and power filter
| Purpose & brief description |
| ● It is mainly used to inspect various insulating materials, insulating structures, electrical and power products and other AC withstand voltage tests. It is also used as a non partial discharge test power supply for various test objects. ● It is mainly used for large capacity test articles, and its economy is better than that of power frequency transformer. ● The advantage of inductive resonance test system is that it has low requirements for power supply, and only needs to provide the loss of test circuit. The quality factor Q mainly depends on the ratio of test power s to loss power P, ranging from 10 to 100, which means that only 1 / Q of test power can meet the test requirements. The resonant system is more portable and economical than the test transformer system. When breakdown and discharge, the system loses the resonant condition, the voltage returns to zero automatically, and the fault of the test object will not be expanded. ● Application: power product manufacturing companies, power operation departments, scientific research institutions and colleges and universities. ● Application products: all kinds of insulating parts, medium voltage switchgear, GIS high-voltage switch, cable and cable accessories, transformer, power transformer, high-voltage circuit breaker, capacitor bushing, motor, lightning arrester, photovoltaic products and other high-voltage electrical components and insulating materials. |
| Test purpose |
| ● It is used to test the insulation strength of various electrical products, electrical components and insulating materials under the specified voltage, assess the insulation level of the products, find the insulation defects of the tested products, and measure the overvoltage capacity. ● The purpose of partial discharge test is to find defects in equipment structure and manufacturing process. For example, the local electric field intensity inside the insulation is too high; Metal parts have sharp corners; The insulation is mixed with impurities or partially defective, and the electrical connection between metal grounding parts and conductors in the product is poor, so as to eliminate these defects and prevent damage to the insulation caused by partial discharge. |
| Technical parameter |
| ● Working power supply: 380V, 50 / 60Hz ● Test voltage: 1-1000kv ● Test capacity: 1 -- 2000kVA ● Test voltage waveform: the distortion rate of sine wave waveform is less than or equal to 3% ● Accuracy of test voltage: Level ● The system has overvoltage protection, overcurrent protection, discharge protection and breakdown trip protection |
| Technical features |
| ● The product has small partial discharge and low temperature rise, which is superior to the provisions of the national standard; ● Small volume, light weight and small power supply capacity; ● Q value is high (quality factor), and most Q values are greater than 40; ● The input capacity of the power supply is only 1 / Q of the output capacity; ● There is no transient overvoltage after flashover of the test object; ● Adopt automatic control technology and computer (photoelectric) measurement and control, with high degree of automation and strong anti-interference ability; ● Adopt fast power protection device with high reliability; ● Reasonably select and improve the field strength distribution to effectively reduce the local discharge; ● It can be used as power frequency test equipment by matching with appropriate tuning capacitor to make it resonate at the specified frequency. |
Feidian electric energy provides more professional testing equipment and technical services for power transformer, transformer, switch, high-voltage cable, power capacitor, bushing, insulator, lightning arrester, motor and other manufacturers
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Address：Lingang section of Shanghai Pilot Free Trade Zone
Tel：13761804576
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