3.5
Date Code 20170207 Field Reference Guide SEL-734B Capacitor Bank Control
Installing the Enclosure
Connecting Full-Size Enclosures to a Control Power Transformer and Switches
Connecting Full-Size Enclosures to a Control Power
Transformer and Switches
SEL offers control cables that connect directly to the capacitor bank switches
and to the control power transformer (CPT). Please refer to Section 2: Field
Connections to the Enclosures to determine the correct cable for your
installation.
The installation steps for the different enclosure styles vary slightly. Please
complete the appropriate steps for your enclosure style.
Full-Size Enclosure
With the Combined
Sensor Connector
Perform the following steps to connect the SEL-734B with the combined
sensor connector to the capacitor bank switches and the CPT.
Step 1. Connect the enclosure to a local ground conductor.
Step 2. Remove or open the fuses inside of the enclosure.
Step 3. Use the appropriate control cable and connect the enclosure to
the CPT and three capacitor bank switches.
Step 4. Install the fuses removed in Step 2.
Step 5. Ensure that the SEL-734B ENABLED LED illuminates.
Full-Size Enclosure
With Individual
Sensor Connectors
Perform the following steps to connect the SEL-734B with individual sensor
connectors to the control power transformer and the capacitor bank switches.
Step 1. Connect the enclosure to a local ground connector.
Step 2. Remove or open the fuses inside of the enclosure.
Step 3. Connect the enclosure to the CPT by connecting the
SEL-C532, SEL-C539, or a functionally equivalent cable from
the POWER SUPPLY/NEUTRAL SENSOR connector to the control
power transformer connection.
Step 4. Connect the enclosure to the capacitor bank switches by
connecting the SEL-C537, SEL-C538, or functionality
equivalent cable from the CONTROL connector to three capacitor
bank switches.
Step 5. Install the fuses removed in Step 2.
Step 6. Ensure that the SEL-734B ENABLED LED illuminates.
Connecting Full-Size Enclosures to the Sensors
The installation of enclosures with the combined measurement connector
differs from enclosures with individual measurement connectors. Use the
appropriate cable, as described in Section 2: Field Connections to the
Enclosures, to connect the enclosure to the sensors.
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