CATHODIC PROTECTION OPTION
Gentherm Global Power Technologi
es
Page 77
12.1.2
Current Shunt
A shunt is used to measure the current to the terminal block. The voltage drop across the
shunt is proportional to the current flowing through it. The current shunt rating corresponds
to the ampere scale on the meter.
12.1.3
Adjustments
A 300-Watt variable resistor located inside the cabinet may be used to adjust the output
power of the CP interface. This resistor may be connected in series or parallel with the TEG.
See Figure 35 for series connection and Figure 36 for parallel Connections.
12.1.4
Series
By connecting the 300-Watt resistor in series with the TEG the maximum allowable power
may be delivered to the CP load. This is achieved by moving the tap to the bottom of the
resistor.
12.1.5
Parallel
By connecting the 300-Watt resistor in parallel with the TEG smaller levels of power may be
delivered to the CP load. This may be required when hot spots occur on the anode.
With the tap located at the top of the resistor the output power will be zero. As the tap is
moved down, the power to the CP load is increased.
Figure 35 - CP Interface System, Series Wiring Diagram
Summary of Contents for P-5100
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