Duty cycle - spec30190013

DOE-SPEC-3019-96

Battery Room Relative

Humidity Range

[20 to 55%] [

]

g. Other (e.g. salt-laden air, dust)

[None] [

[Sketch No. ] [Drawing

h. Battery Room Layout

No. ] (Attachment 1)

ATTENTION:

Select one of the following paragraphs 3.2.2. Use the first paragraph for UPS applications. Enter the kVA rating

and efficiency of the UPS to which the purchased battery will deliver power, and the battery rated life.

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3.2.2

Duty cycle. Each battery shall supply UPS load of [ ] kVA at 0.8 power factor

(PF) lagging ([ ] kVA at 1.0 PF) for [15] [ ] minutes. Inverter full-load

efficiency shall be approximately [90%.] [ %.] Each battery shall be rated for a

[10-year] [ -year] life to operate with the following current and voltage

harmonics fed back from the UPS:

ATTENTION:

Enter the maximum current and voltage harmonics to which the battery will be exposed. These values should be

available from the UPS manufacturer; also consult IEEE 519 for guidance.

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a. Maximum Current Harmonics (p-p): [5%] [

]

b. Maximum Voltage Harmonics (p-p): [10%] [

ATTENTION:

Use this paragraph for general-purpose applications. Verify the duty cycle (Appendix B) is correct, and attached to

the specification. Enter the lowest electrolyte temperature expected.

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3.2.2

Duty cycle. The batteries shall supply power for the duty cycle noted in

Appendix B and diagrammed in Attachment 1, when the temperature in the

battery room is at its lowest level. Note that this duty cycle represents the loads

to be served by the battery and does not include design margin, aging or

temperature correction factors (refer to paragraph 3.2.6). Electrolyte

temperature at the beginning of the discharge duty cycle shall be assumed to be

[ ]F ([ ]C). Each battery shall operate for a [10-year] [ -year] rated life.

Each battery shall perform in accordance with the requirements of its respective

duty cycle at any time, including at time of delivery and when the battery has

reached its rated life.