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BG112774A
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Spring-loaded energy accumulator for a power commutators of step voltage regulators
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BG112773A
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Unified oil vessel for step voltage regulators
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BG112775A
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Three-phase power commutator with vacuum arc-suppressing chambers for a step voltage regulators
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BG112300A
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Spring-loaded energy accumulator for a power commutators of step voltage regulators
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BG112298A
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Motor drive for step voltage regulator
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BG112297A
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Load tap changer for step voltage regulators
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BG112103A
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A three phase step regulator of volatge with vacuum finger-arched chambers and reactors
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BG112088A
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A three-phase power switch with vacuum arching chambers
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BG112089A
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A power switch of a step voltage regulator
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BG112080A
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Selector on load for regulation of power transformers voltage
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BG112081A
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A tri-phase stepped regulator of voltage with isolated phases
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BG106348A
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Spring-type energy accumulator for power switch of a step voltage regulator
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BG106347A
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Preselector for step voltage regulator
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