R-Tech INV160 Guia de Instalação descarregar pdf (Página 93)

C-33

Electrical diagrams

Source-changeover system with BA controller

Coupling

DB101751

DB101753

Transfer conditions

DB101755

Terminals 20 and 21:

additional control contact (not part of

controller).

Tests on “Normal” and “Replacement”

source voltages

The single-phase check for UN and UR

implemented across terminals 1 and 5

of circuit breakers Q1 and Q2.

Legends

Q1 circuit breaker supplying and protecting the automatic-

control

circuits for the “Normal” source

Q2 circuit

breaker supplying and protecting the automatic-

control circuits for the “Replacement” source

ACP auxiliaries control plate

BA automatic

controller

IVE electrical

interlocking and terminal block unit

Note:

diagram shown with circuits de-energised, circuit breakers open

and relays in normal position.

Source-changeover systems

with automatic controllers

2 Compact NS100/1600 or

Masterpact NT/NW devices

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R-Tech INV160 Guia de Instalação Página 93