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Product — Series resonance test system — Frequency modulation series resonance test equipment
Product name：Frequency modulation series resonance test equipment
Executive standard：IEC60076-3，GB1094.3-2003、GB50150-2006，DL/T849.6-2004
Other name：Variable frequency power supply series resonance, series resonance, variable frequency resonance, AC withstand voltage test equipment, variable frequency power supply
Component：Variable frequency power supply, reactor, excitation transformer, voltage divider and coupling capacitor
During partial discharge test：Optional partial discharge instrument and power filter
| Purpose & brief description |
| ● It is mainly used for AC withstand voltage test and induction withstand voltage test of various insulating materials, insulating structures, electricians and power products. It is also used as the power supply for non partial discharge test of various test objects. ● It is mainly used for large capacity test articles, and its economy is better than that of power frequency transformer. ● Frequency modulation resonance device is used for field AC withstand voltage test of various large power transformers, power cables, steam turbines, hydro generators and other capacitive equipment. Under power frequency conditions, due to the large capacitance of the tested object and high test voltage, there are also high requirements for the power capacity of the test device. Compared with the traditional power frequency withstand voltage test device, the frequency conversion series resonance test device has the advantages of small volume, light weight and easy handling. The split design is convenient for flexible combination on site, greatly reduces the labor intensity and improves the work efficiency. ● 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 |
| ● Number of output phases: single-phase or three-phase ● Output voltage: 0-1000 kV ● Output capacity: 5 – 1350kw ● Output waveform: pure sine wave ● Output waveform distortion rate: 1% or less ● Output voltage instability is 1% or less ● Adjustable output frequency range: 30Hz ~ 300Hz ● Output frequency sensitivity adjustment: 0.1Hz ● Output frequency instability of 0.05% or less |
| Technical features |
| ● Compared with the generator set, the starting current is smaller, the weight is lighter and the noise is lower; Avoid self-excited overvoltage ● Linear amplifier matrix composed of power transistors; When the switch assembly is not used, the high-frequency harmonic of the power supply shall be avoided, and the pure sine wave shall be provided, the distortion shall be less than 1%, and the partial discharge level shall be 5pc ● High quality components of ABB, Phoenix, Sanyo, ODU and Suzuki are used ● Multi tap excitation transformer for transformer testing of different voltage levels ● It has overvoltage, overcurrent, short circuit, breakdown flashover, power failure, detuning and other protection functions ● It adopts original internal structure, with less magnetic flux leakage than similar international products, no eddy current loss, and greatly improved Q value (quality factor). ● Adopt optical fiber communication mode to effectively isolate high-voltage and low-voltage control circuits. |
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
Email：zhangzaihui@126.com
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