Page 213 - Uninterruptible Power Supplies

Batteries

Trend Graph of Unit 18 Voltage
15.00 Volts

14.50 Volts

14.00 Volts

13.50 Volts
Unit Best-Fit Curve
13.00 Volts
12.50 Volts

12.00 Volts

11.50 Volts

11.00 Volts

10.50 Volts
10.00 Volts
Aug 94 Sep 94 Oct 94 Nov 94 Dec 94 Jan 95 Feb 95
Voltage Measurement
Maint/Crit Float Volt Limits
Figure 7.26 Trend graph of unit 18 voltage.
Trend Graph of Unit 18 Impedance (Average)
7.00 mOhms

6.70 mOhms
Unit Best-Fit Curve
6.40 mOhms
6.10 mOhms

5.80 mOhms

5.50 mOhms

5.20 mOhms
4.90 mOhms

Unit Best-Fit Curve
4.60 mOhms
4.30 mOhms

4.00 mOhms
Aug 94 Sep 94 Oct 94 Nov 94 Dec 94 Jan 95 Feb 95
Impedance Measurement Max/Min Reading
Average Impedance Maint/Crit Imp Alarm
Figure 7.27 Trend graph of unit 18 impedance (average).
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