Redundancy in Coupling Power Line Carrier Channels to the Power ...
Redundancy in Coupling Power Line Carrier Channels to the Power ...
Redundancy in Coupling Power Line Carrier Channels to the Power ...
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TWO PLC CHANNELS, COUPLED TOGETHER VIA PHASE TO PHASE<br />
USING TWO-FREQUENCY TUNERS<br />
T<br />
R<br />
S<br />
Primary Relay PLC<br />
Channel A<br />
T<br />
R<br />
S<br />
Secondary Relay<br />
PLC Channel B<br />
1→<br />
1→<br />
0.707→<br />
0.707←<br />
Balance Transformer<br />
(may be <strong>in</strong> house or<br />
switchyard)<br />
0.707→<br />
0.707←<br />
Balance Transformer<br />
(may be <strong>in</strong> house or<br />
switchyard)<br />
Note: Coax should be<br />
grounded <strong>in</strong> <strong>the</strong> house, not<br />
<strong>in</strong> <strong>the</strong> yard<br />
Double Frequency L<strong>in</strong>e Tuner<br />
0.707<br />
→<br />
0.707<br />
Double Frequency L<strong>in</strong>e Tuner<br />
0.707←<br />
→<br />
0.707←<br />
(A) 0.707→<br />
(B) 0.707→<br />
(A) 0.707←<br />
(B) 0.707←<br />
CCVTs
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