I. Overview

Primary power distribution generally arranged in low voltage power distribution compartment and introduced low-voltage power from the transformer.

The most common low-voltage distribution system in residential building: Two 10 (6) kV Line after the buck to two low voltage bus (I, II segment) power supply, contact between the bus by the Q3, respectively, additional features period of emergency load bus (III above).

During normal operation, contact breaker Q3 breaking, two bus breakdown operation, the emergency power supply bus Q4 I segment by bus. When Q1 or Q2 loss of the higher power, by dual power automatic transfer switch (DPT-TE) jump Q1 or Q2, rapid automatic closure mother of Q3, all the way into the line from the power supply to the two buses. When the two-way electricity is lost through dual power automatic transfer switch (ATS021) owned generators start and complete the automatic switching process.

II. Applications