Figure 53.
Typical voltage versus temperature characteristics of nickel-cadmium battery.
Type ME Electronic Recloser Control
36
Shop Testing a Battery
Before testing, the top and bottom covers of the battery should
be removed. Then the following tests can be made.
1. Check for leaking cells. These are detectable by the pres-
ence of a white powdery deposit of electrolyte.
2. Measure voltage across each cell. Any cell measuring 0.0
volts is cause for immediate rejection of the entire battery.
3. If all cells have at least 0.1-volts or more, charge the battery
using the KA1142ME battery charger. All cells should have
et least 1.0-Vdc within 5 minutes. Any battery failing this
test should be rejected.
4. Charge the battery for 48 hours with the KA1142ME battery
charger.
5. Place a 10-ohm load (a KA638ME voltmeter or MET Tester
has this built in) across the battery for approximately 2-3 sec-
onds. The voltage must not drop more than 3-volts below the
open circuit voltage for temperatures above 20-degrees F.
6. Make a capacity check. Discharge the battery through a 100-
ohm, 12-watt resistor for 3-hours. At the end of this period and
while under load, check the individual cell voltages. No cell
should read less than 1.1-volts.
7. Remove the 100-ohm resistor. Recheck the open-circuit volt-
age on each cell after 7-days. All cells should measure very
close to the same voltage level. Do not recharge the battery
prior to this test.
If the battery passes the above test, it is in satisfactory condi-
tion; replace the battery covers, recharge (48-hours using the
KA1142ME battery charger) and return to service.
Summary of Contents for Kyle Type ME Series
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