Sollatek AVR3x20-22 Mode D'emploi page 13

R1 S2
THREE PHASE AUTOMATIC VOLTAGE REGULATOR Issue: Jan 2016
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APPENDIX 1
Bypass installation procedure
Sollatek UK Ltd.
http://www.sollatek.com
1. Positioning
The bypass should be installed directly next to the AVR to allow wiring between the two units. Both units should
be positioned as closely as possible to the incoming supply access. See AVR manual for further positioning
requirements.
INCOMING SUPPLY AND
OUTGOING LOAD CABLES
Fig 1. Bypass positioned close to AVR and utility access point
2. Interconnection
In the standard bypass connection configuration, the main incoming supply and load output are connected at
the bypass. Connections are then made to and from the AVR using the terminals provided on the bypass terminal
panel. The AVR and bypass should be connected together using the cable kit provided. This kit consists of nine
identical cables two meters in length (three phases and neutral in and out plus one earth connection). The bypass
terminal panel shows connection information. See AVR manual for further information on cable
connection. NB Ensure all connections are tight.
The bypass is fitted with a terminal cover to prevent accidental contact with the
terminals. It is necessary to remove this cover and feed the cables through before
replacing it after the connections have been made.
3. Bypass operation
When the AVR is required to be in circuit, during normal operation, the operation
handle on the top of the bypass case should be in the 'normal' position. This takes
the incoming supply via the AVR to the load. When the AVR needs to be taken out
of circuit, for instance to perform maintenance, the operation handle should be
R1 S2
moved to the 'bypass' position. This takes the incoming mains directly to the load
and the AVR is isolated.
4. Alternative bypass connection
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There is an alternative bypass/AVR connection method that may be employed if
desired. In this case, the bypass is used to select between the regulated supply
from the AVR and the incoming mains supply as the feed to the load. Connections
R1
are as indicated on the terminal panel with the exception the terminals marked 'TO
AVR' are not used. (See Diagram)
N.B. This arrangement does not allow the bypass to be used to isolate the
AVR for maintenance.
T3
E
BY-PASS
T3
E E
T3
S2
R1 S2 T3
N
AVR
TERMINALS
AVR INPUT AND OUTPUT CABLES
Fig 2. Bypass terminal panel
marking
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INCOMING SUPPLY
R1 S2 T3 N
OUTPUT TO LOAD
R1 S2 T3 N
TO AVR
R1 S2 T3 N
FROM AVR
R1 S2 T3 N
EARTH
SOLLATEK U. K . LTD.