Hi Leg Transformer Wiring Diagram

Each paired wire is split one leg to a common tap the other leg to a voltage tap.

Hi leg transformer wiring diagram. With xo grounded the transformer acts as a ground source for the secondary system. Four wire delta circuits a four wire delta 4wd electrical service is a three phase delta service with a center tap on one of the transformer windings to create a neutral for single phase loads. Easy understanding of 3 phase transformer connections delta delta wye wye delta wye and wye delta on photo. 240 x 480 secondary.

It is used when both single and three phase power is desired to be supplied from a three phase transformer or transformer bank. The high leg conductor is also called the wild leg stinger leg or bastard leg other important nec rules relating to the high leg are as follows. Motors loads are commonly connected to phases a b and c while single phase loads are connected to either phase a or c and to neutral. Run wires from transformer to fixtures or hubs.

High leg delta also known as wild leg stinger leg bastard leg high leg orange leg red leg dog leg delta is a type of electrical service connection for three phase electric power installations. Transformer pictured is a 900w model number and location of components varies by model 5 quick start guide steps 1. Attach all wires to 12v tap. 120 240 2 2 1 2 anfc 4 2 2 bnfc x4 x1 h10 h2 h3.

Suitable for a three wire service or a four wire grounded service with xo grounded. 240 x 480 secondary. Panelboards since 1975 panelboards supplied by a 4 wire delta connected 3 phase system must have the high leg conductor terminate to the b phase of a panelboard 408 3. Suite a5 naples fl 34104 239 596 5855.

The most popular transformer connection in the world. Jefferson electric transformer while three phase devices are usually the more cost effective option the single phase option provides more versatility and can be attractive from a reliability and maintenance standpoint.