We build a three phase isolating transformer with vector group Dy5n, cooling canals and a safe galvanic separation with 5 kV dielectric strength and slight smoothing of voltage peaks caused by the power supply. The transformer losses in total are only 2% or 250 W under full load. The lab transforemr gets a three phase 32 A connection, a three phase 16 A connection and three one phase 10 A connections. The IP 23 steel housing is additionally equipped with steering rollers and trestle rollers. On the front wall it has several CEE sockets. Integrated automatic circuit breakers with slow-blowing characteristics protect the circuits.
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