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ES188948A1
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Improvements in the protection devices for transformers
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ES169338A1
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Improvements in tension correction devices transformers tension correction of transformers
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ES160884A1
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A stabilizer transformer
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ES160885A1
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Phase displacement compensation device for potential transformers
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ES155127A1
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Improvements introduced in the electromagnetic releases announcers
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ES145198A1
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Balancing and compensation device for two-phase installation feeding a single-phase receiver.
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ES142148A1
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A new balancing and compensation device for three-phase systems that supply a single-phase receiver.
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ES137796A1
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A new magnetic bridge regulator for electric transformers.
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ES126123A1
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Transformer for measuring voltage and combined intensity.
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ES121267A1
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A potential transformer.
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ES111753A1
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An abrupt firing mechanism.
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ES111130A1
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A removable container or bucket for electrical appliances with oil bath.
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ES107566A1
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Improvements in the artificial circulation of oil in the tanks of transformers and other appliances.
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