Transfer Switch; Generator Ac Connection System - Briggs & Stratton 1768-0 Installation Manual

Briggs & Stratton Power Products Home Generator System
Installation Manual
TRANSFER SWITCH
The AutomaticTransfer Switch supplied with the Home
Generator System is enclosed in a NEMAType 3R
enclosure suitable for indoor/outdoor use. Guidelines for
mounting the Automatic Transfer Switch include:
• The switch must be installed with minimum NEMA 3R
hardware for conduit connections.
• Install the switch on a firm, sturdy supporting structure.
• To prevent switch contact distortion, level the switch if
necessary.Thiscan be done by placing washers between
the switch enclosure and the mounting surface.
• Never install the switch where any corrosive substance
might drip onto the enclosure.
• Protect the switch at all times against excessive moisture,
dust, dirt, lint, construction grit and corrosive vapors.
The typical internal-mount Automatic Power Transfer
Switch is depicted in Figure 12.It is best if it is mounted
near the main distribution panel,either inside or outside.
Discuss layout suggestions/changeswith the owner before
beginning the system installation process.
Main
Distribution
Panel
Automatic
Generator AC Connection System
A single-phase,three-wire AC connection system is used in
the Home Generator System.The stator assembly consists
of a pair of stationary windings with two leads brought out
of each winding.The two windings are connected together
in series, resulting in a fixed 240Volt AC, 60Hz outpu_
Stator output leads I I and 44 are the two "hot" leads;the
junction of leads 22 and 33 forms the neutral lead, as
shown schematically and as wiring diagram in Figure 13.A
complete schematic and wiringdiagram can be found in the
owner's manual.
33
33 22
o.
Circuit
I I Breaker
1--II ---o+++T"o --
I L o+
Neutral
T
120V
II
44
Circuit I _
Breaker
7 Neutral
I
0
To Earth Ground
To TransferSwitch
/
II