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TECHNICAL REQUEST FORM
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HT TAP CHANGER
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This form is intended for entering the specifications of HT tap changers with 1 or more identical stages, operated by 1 control device.
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If you require a special HT tap changer, for example with 2 or more different stages, operated by 1 or 2 control devices (examples below), send us your specifications.
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CUSTOMER'S NAME
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COUNTRY
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Question1Select the required Max Voltage Um (kV) - test voltages
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"Max Voltage Um (kV). Applied voltage 50Hz/1 min (kV) / Full wave lightning impulse BIL 1.2/50µs (kV)"
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Question 2Electric circuit diagram.
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Question 3What is the number of positions?
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(for the diagrams series-parallel and star-delta, the number of positions is implicitly 2)
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Question 4GROUP OF CONTACTS configuration
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Question 4.1Group of contacts COUNT per Stage ?.
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Question 4.2Stage (Deck) COUNT ?.
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Question 5RATED CURRENT per Fixed Contact
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Select the fixed contact reference needed from the drop down list taking into account the following conbinations of characteristics
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The tubular fixed contacts (up to 400A) are available
only with electric circuits diagramms « Bridge »,
« Series/Parallel » or « Star-Delta »
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Question 6CONTROL DEVICE AND DECKS CONFIGURATIONS
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Question 6.1Decks Configurations .
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Question 6.2Type of control device .
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Question 6.3Type of vertical decks configurations .
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OPTIONAL FEATURES - the following questions are about optional features, by default the answer to these questions is NO if you need one of these characteristics choose from the drop-down list
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Question 7OPTIONAL ANODIC OXIDATION AND PRIMER PAINTING ON OUTSIDE ALUMINIUM PARTS
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Are anodic oxidation and primer painting required for the outside aluminum parts?NO (by default)
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The previously selected control device.
In yellow the areas that would be covered
by the anodic oxidation and primer painting:
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Question 8OPTIONAL MECHANICAL LOCK WITH MICRO-SWITCHNO (by default)
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Question 9SIGNALING MICRO-SWITCHES AND SAFETY MICRO-SWITCH
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Question 9.1Is signaling micro switches required ?No (by default)
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Question 9.2Is safety micro switches required ?No (by default)