User's Manual

AT7400 Owner Manual Rev. 2.0 – October 2006-10-23 ANNEX A Section 7 - 1/9

Section 7 – Energy Distribution and Control

7. General Description

The energy distribution circuits on the transmitter can be configured on the following possibilities:

208V

-220 V

– 240 V

mono-phase.

208V

-220 V

– 240 V

bi-phase.

208V

-220 V

– 240 V

three-phase.

360V

three-phase.

Fig.7.1: Energy Distribution – Bipolar Main Breaker on left, manual starter on the center and module 4147 – battery

charger.

In all versions above, the NEUTRAL wire is present, however not always connected and so no need

to integrate it within the grounding system of the station. It is however MANDATORY to connect the neutral cable on

the 208Vac mono-phase, and 360Vac three-phase.

WARNING: Do not operate without the GROUND connection. The absence of

grounding is risky for personnel SAFE, equipment reliability besides jeopardize

the quality of the DTV transmission.

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Section 7 – Energy Distribution and Control 7. General Description The energy distribution circuits on the transmitter can be configured on the following possibilities: 208VAC 208VAC 208VAC 360VAC -220 VAC – 240 VAC mono-phase. -220 VAC – 240 VAC bi-phase. -220 VAC – 240 VAC three-phase. three-phase. Fig.7.1: Energy Distribution – Bipolar Main Breaker on left, manual starter on the center and module 4147 – battery charger.
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7.1. Energy AC Mains Connection Fig.7.2: Typical 3 wires bi-phase AC energy source connection diagram OPTION 1 – INTERLOCK CLOSED BY A JUMPED WIRE 208V TO EXCITER DRAWER GROUND STARTING SWITCH FROM IRUSH MÓDULE NEUTRAL 208V TO POWER DRAWER (PA1) R S T MAIN T RIPHASIC CONTACTOR R S T PHASE 1 BIP OLAR MAINBREAKER PHASE 2 PHASE 3 green wire is connected INTERLOCK Fig. 7.3: Bi-phases type energy ADVANCE TV LINE internal up-front connection diagram, no isolation powertransformer required.