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全自动Dielectric Loss Tester-扬州达瑞

Oil-immersed Test Transformer - Yangzhou Darui Electric Co., Ltd.

Published: 2020-04-30 09:18:28

Views: 2922

Category: Power Frequency Withstand Voltage Device

Product Description


Oil-immersed Test Transformer



 

The following points need attention:

1. Good operational performance  The magnitude of voltage and current determines the adsorption force        

2. Stable and reliable Since the equipment operates under high voltage unstable conditions, it is easily damaged.

3. Ensure safety The non-woven fabric electrostatic generator is a high-voltage equipment, and improper selection can easily pose danger to the human body.

4. Both too large and too small can affect the production process. Adopting no-technology, overload protection technology, and continuously adjustable voltage and current technology, it is the preferred choice for non-woven fabric electrostatic equipment.





Working Principle:



When the test object Ca generates partial discharge under the test voltage, the discharge pulse signal is sent to the input unit through the coupling capacitor Ca. The input unit picks up the pulse signal, which is amplified by a low-noise preamplifier, filtered by a filter amplifier to select the required frequency band, and amplified by the main amplifier (to achieve the required amplitude and generate a zero-marker pulse). Then, a visible discharge pulse is produced on the elliptical scanning baseline of the oscilloscope screen, and it is also sent to the pulse peak meter to display its peak value.



The time window unit controls the working time of the pulse peak meter within each cycle of the test voltage, and during this working time, the corresponding display area on the oscilloscope screen is highlighted, which can be used to eliminate interference with fixed phase.



The test voltmeter generates a zero-crossing marker signal of the test voltage through a capacitive voltage divider, which can display a zero-marker pulse on the oscilloscope screen. The magnitude of the test voltage is indicated by a digital voltmeter.



 



Technical Parameters:



Input Power: Three-phase four-wire AC380V



Output Voltage and Current:



1. Three-phase AC100V output (fixed value)                         One group



2. Three-phase AC 0 – 10A output (10A, adjustable value>               One group



3. AC voltage output



Three-phase AC 0 – 450V, at 220V, current less than 10A               One group



4. DC operation voltage output DC 0 - 300V                      One group



5. Single-phase AC220V output (socket)                           Two groups



6. Three-phase AC380V output (fixed value, terminal block)                 One group



7. Single-phase 24V, 36V, 110V, 220V DC fixed output             One group



8. With timing function



9. Dimensions: 550*750*800mm



10. Weight: 55KG



 




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Yangzhou Darui Electric Co., Ltd.
主营产品:Dielectric Loss Tester、Transformer Ratio测试仪、Loop Resistance Tester、高压None线核相仪、Insulation Resistance Tester、Partial Discharge Tester、Cable Fault Tester、DC Resistance Tester等。
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