Transformer direct current resistance measurement appearance based on linkage is balanced
The utility model provides a transformer direct current resistance measurement appearance based on linkage is balanced, includes the panel, the panel is equipped with high low voltage winding bindingpost, the panel is equipped with low voltage winding voltage measurement terminal, low voltage windin...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model provides a transformer direct current resistance measurement appearance based on linkage is balanced, includes the panel, the panel is equipped with high low voltage winding bindingpost, the panel is equipped with low voltage winding voltage measurement terminal, low voltage winding current measurement end, the panel is equipped with power frequency alternating current source input interface, ground terminal. Magnetize and include in the return circuit: DC power supply, vacuum relay K0, diode D1, vacuum relay K0 are used for out / break the direct current electric current that magnetizes, and diode D1 is used for keeping apart the transient overvoltage. Low voltage winding current measurement end is connected with diode D2, constitutes low voltage winding free -wheelingcircuit. The diode D2 direct current resistance measurement return circuit of connecting in parallel. The utility model discloses direct current resistance measurement appearance need not the great power that charges during th |
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