{"id":840,"date":"2024-09-10T14:12:51","date_gmt":"2024-09-10T06:12:51","guid":{"rendered":"http:\/\/bjdyhy.com\/?page_id=840"},"modified":"2024-09-11T15:35:22","modified_gmt":"2024-09-11T07:35:22","slug":"iec-62478-2","status":"publish","type":"page","link":"http:\/\/bjdyhy.com\/index.php\/en\/iec-62478-2\/","title":{"rendered":"IEC 62478\/"},"content":{"rendered":"\n
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IEC 62478<\/h1>\n\n\n\n

Comparison with IEC 60270<\/p>\n<\/div>\n\n\n\n

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Our company’s complete set of partial discharge sensor online monitoring equipment adopts the IEC 62478 standard<\/p>\n\n\n\n

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IEC 60270<\/strong><\/td><\/td>IEC 62478<\/strong><\/td><\/tr>
First announcement in 1968; Revised since 2000<\/td>Publication date<\/strong><\/td>First announcement since 2016<\/td><\/tr>
Measured in terms of \u201cquantity\u201d<\/td>Standard <\/strong><\/td>Measured in terms of \u201cquality\u201d<\/td><\/tr>
pC<\/td>Unit<\/strong><\/td>mV or dBm<\/td><\/tr>
Need<\/td>Calibration<\/strong><\/td>No need<\/td><\/tr>
Off-line (turn off the power)<\/td>Method<\/strong><\/td>On-line (no need to turn off
the power<\/td><\/tr>
Coupling capacitor\uff09<\/td>Sensor<\/strong><\/td>(HFCT)\u3001\uff08UHF\uff09\u3001\uff08TEV\uff09<\/td><\/tr>
Factory Testing; On-site test on
a routine basis<\/td>		Main use<\/strong><\/td>24 hours remote monitoring<\/td><\/tr>
Test if PD activities is acceptable with
complicated process<\/td>		Feature <\/strong><\/td>Observe the trend of PD
activities with simple proces<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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Product<\/strong>
    Partial discharge monitoring host<\/a>
    UHF sensor<\/a>
    HFCT sensor<\/a>
    TEV sensor<\/a>
    Oil Chromatographic<\/a><\/mark><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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What is partial discharge<\/a>
About Us<\/a>
IEC 62478<\/a>
Contact Us<\/a><\/mark><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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