Tripp-lite Extended-Run Single-Phase Battery Cabinet User Manual download pdf (Page 10)

5. Maintenance

5.1 Maintenance Schedule

5.2 Fuse Replacement

Quarterly Check

Measure individual battery unit temperature. (Measure with a digital thermometer by placing the surface thermocouple on 1.

the at surface of the negative terminal—not the “L” connection surface. An infrared temperature monitor can also be used.

Temperatures below 77° F reduce battery performance and temperatures above 77° F reduce battery lifespan. Battery lifespan

is reduced by 50% for each 15° above 77° F. For example, battery lifespan will be reduced by half at 92° F.)

Measure individual battery unit oat charging voltages. (Measure voltage with a digital voltmeter. Measured voltage should 2.

be between 13.2 VDC and 14.2 VDC. Battery units outside this range should be replaced.)

Measure total battery cabinet oat charging voltage.3.

Semiannual Check

Repeat quarterly check.1.

(Optional) Measure impedance or conductance of individual battery units.2.

(Optional) Perform a high-rate, 100 A, 10 second performance capacity test of individual battery units. (The performance 3.

capacity test is identical to the acceptance test in Section 4-4, and the same procedure should be followed.)

Annual Check

Repeat semiannual check.1.

Use insulated tools to tighten all connections to the recommended torque. (See 2. Section 7-2 for recommended torque values.)

(Optional) Measure inter-battery connection resistance.3.

Warning: Fuses should be replaced by qualied service personnel only. Blown fuses must be replaced with the same number

and type of fuses.

The battery cabinet may contain a UL-listed, branch-rated fuse in the positive output (upper front of cabinet).1.

Before attempting to replace the fuse, open the disconnect between the battery cabinet and the load/charger.2.

Remove the front panel from the battery cabinet. Before attempting to replace the fuse, conrm that the battery is not shorted 3.

to the cabinet. Use a digital voltmeter to measure the voltage between the cabinet and both sides of the fuse holder. This

voltage should measure 0 (zero) VDC. If the measured voltage is not zero, determine the cause and correct before proceeding.

Wearing rubber gloves and using insulated tools, remove any cables and/or terminal plates from the output side of the fuse 4.

holder. Using the appropriate hex socket, remove the fuse from the holder.

The replacement fuse must have the same voltage and current rating as the fuse being replaced (check the label on the fuse 5.

being replaced).

For nominal battery cabinet voltages less than or equal to 384 VDC, use fuses rated at 500 VDC. For nominal battery cabinet 6.

voltages greater than 384 VDC, use fuses rated at 700 VDC.

Install the replacement fuse and reconnect the output cables and/or terminal plates to the output side of the fuse holder.7.

Reinstall the battery cabinet front panel and close the disconnect between the battery cabinet and the load/charger.8.

The battery cabinet contains valve-regulated recombinant lead-acid (VRLA) batteries, which are maintenance-free relative to the

electrolyte. You cannot add water to these batteries or sample the electrolyte specic gravity. It is necessary, however, to periodically

check the charging voltage, temperature and connections of the individual battery units.

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Tripp-lite Extended-Run Single-Phase Battery Cabinet User Manual Page 10