2-36 888-2406-002
WARNING: Disconnect primary power prior to servicing.
Installation & Initial Turn-On
Today, many transformers are supplied with all of the primary terminals available so
that either a delta or WYE connection can be made. Table 2-4 shows the different
line-to-line voltages that are available with this configuration.
In summary, both symmetrical power distribution systems are satisfactory because
of their balanced impedances. Use either a closed delta or a four wire WYE system
for maximum transmitter performance. Never use an open delta system just to cut
costs - it could cost dearly in the long run.
Table 2-3 Typical Line Voltages, Delta or WYE
Delta Connected
Transformer
WYE Connected
Transformer
210 364
220* 380*
230 400
240* 415*
250 433
*Typical voltages in some areas of the world.
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