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Installation
Load Connection
40
Operating Manual for XHR Series Power Supply
Load Wiring Length for Operation with Sense Lines
For applications using
remote sensing, you must limit the voltage drop across each load line.
Figure 2.2
shows some maximum allowable wire lengths for a given load current and wire size.
We recommend that you use the larger load wiring to ensure a smaller voltage drop
(1 V typical maximum), although the units (except 7.5 V models) will compensate
for up to 5 V drop in each line. See also
“Local and Remote Sensing” on page 48
.
Figure 2.2
Maximum Load Wire Length for 1 V Line Drop
Noise and Impedance Effects
To minimize noise pickup and radiation, use
shielded pair wiring of shortest possible length for load wires. Connect the shield to
the chassis using the ground screw on the rear panel. Where shielding is impossible
or impractical, simply twisting the wires together will offer some noise immunity.
When using local sense connections, use the largest practical wire size to minimize
the effects of load line impedance on the regulation of the supply.
WIRE GAUGE (AWG)
16
14
12
10
8
6
4
2
1/0
1
2/0
WIRE LENGTH (FEET)
100
90
80
70
60
50
40
30
20
10
LOAD CURRENT (AMPS)
1
2
3
4
5
6 7 8 9 10
20
30
40
50 60 70 80 90 100
200
300
400
500
1000
TM-XROP-01XN.book Page 40 Monday, March 22, 2004 4:10 PM
Summary of Contents for XHR 100-10
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Page 3: ...Operating Manual for XHR Series Programmable DC Power Supply...
Page 14: ...List of Figures xii Operating Manual for XHR Series Power Supply...
Page 16: ...List of Tables xiv Operating Manual for XHR Series Power Supply...
Page 49: ...Installation Load Connection Revision A 47 Figure 2 9 Multiple Loads with Remote Sensing...
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