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transformer for grounding- |
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grounding-measuring-transformer |
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customer demand |
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For grounding- and interference measurements, we need a transformer, that is able to supply 120 V at 284 A in one phase, without stressing the power supply with unbalanced load. To get detailed measurements, we also need graded, smaller voltages, which are adjustable with a toggle. The transformer has to be fused in case of a short circuit, it needs to do a safe galvanic separation and it should be a distinct device in our test laboratory. |
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solution |
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A transformer, which is connected to the power supply with three phases, but has an one-phase voltage at the output. By using a special vector group, we implement a transfer from a three-phase voltage to an one-phase voltage. The safeguarding is done by a motor protection circuit breaker and the switching with a high current switch. Transformer and accessory are built in a housing IP 23. The potential separation amounts 5000 V. |
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technical data |
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3AC-1AC-separating transformer |
