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De-energized tap-changer
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De-energized pipe-form and drum-form tap-changer
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De-energized cage-form tap-changer（220KV and below）
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De-energized electric tap-changer
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single-phase linearity tap-changer
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De-energized tray-form tap-changer
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De-energized linearity tap-changer
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WST4 Series de-energized tap-changer
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WSTⅡ5 Series de-energized tap-changer
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De-energized cage-form tap-changer（66KV and below）
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Oil-immersed load switch
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On-load tap-changer
Product details
SV series on-load tap-changer
Rated voltage against ground is 35-66kV(highest voltage for equipment 40.5 -72.5kV), the maximum rated passing current for three-phase tap-changer is 200A or 350A, and they are applied mainly to on-load transformer with rated voltage 1 10kV (highest voltage for equipment 126 kV)and below.
The structure of SV on-load tap-changer
Type of on-load tap-changer
E.g. SV III 350Y / 172.5 - 10 19 3W
SV series tap-changer,there-phase ,maximum rated current 350A,neutral connect ,highest voltage for equipment is 72.5kV,1 Ocontacts for thin - regulating,1 9working positing,3 middle - postion,with conversion selector, positive - negative regulating.
Main technical parameters
Installation dimension of SV on-load tap-changer
(Attached from figure 1 to6)Head installation flange see figure3
Basic wiring diagram of switch
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