Single Load Connections - Keysight Technologies RP7900 Serie Guide D'utilisation Et De Maintenance

Along with temperature, you must also consider voltage drop when selecting wire sizes. The RPS will
tolerate a voltage drop of 1 V per lead while maintaining the specified programming and measurement
accuracy (see RP793xA-RP794xA
of the rated output voltage per lead will be tolerated with only slightly reduced programming and
measurement accuracy. Of course, any voltage drop in the load leads reduces the maximum voltage
available at the load. Subtract the load lead drop from the rated voltage of the unit to determine the
maximum voltage available at the load.

Single Load Connections

1. As shown in the following figure, terminate all load wires with wire terminal lugs securely
attached. DO NOT use unterminated wires for load connections at the power supply.
2. Route the wires through the safety cover before attaching them to the bus bars. Knockouts are
provided on for larger diameter wires. The figure illustrates the recommended hardware for con-
necting wires to the bus bars. You must provide all cabling. Ensure that the wire-mounting hard-
ware does not short the output terminals.
3. When attaching terminal lugs to the bus bars, ensure there is enough room for the safety cover.
Twist or bundle the load wires to reduce lead inductance and noise pickup. The goal is to minimize
the loop area or physical space between the + and - output leads from the bus bars to the load.
4. Attach the safety cover to the rear panel. Note that heavy wiring cables must have some form of
strain relief to prevent bending the safety cover or bus bars.
High Voltage Models - RP795xA and RP796xA
Tightening torque of the output bolts cannot exceed 10.8 Nm (8 lb-ft).
Keysight RP7900 Series Operating and Service Guide
and RP795xA-RP796xA
2 Installing the Instrument
specifications). Voltage drops of up to 25%
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