Atec Megger-TORKEL-820 - Manual

TORKEL 820
Battery Load Unit
▪ ▪ Batteries can be tested “in service”
▪ ▪ Unit adjusts to include load currents in the
test parameters
▪ ▪ User adjustable alarm and shutdown
points to avoid excessive discharge
▪ ▪ Easily expandable for larger battery banks
using TXL extra load units
▪ ▪ View test parameters/results “real time”
as testing progresses using TORKEL WIN
software
▪ ▪ Easily save results to a PC for analysis,
report generation and storage
Description
During a power outage, crucial telecommunication and radio equip-
ment must be kept operating by batteries. However, the capacity of
such batteries can drop significantly for a number of reasons before
their calculated life expectancy is reached. Battery capacity should
thus be checked to prevent expensive downtime in the event of a
power failure.
The most reliable way to determine battery capacity is to conduct
a discharge test. The TORKEL™820 features a unique design that
combines efficiency with portability. Using TORKEL 820 you can
discharge 24 and 48 V batteries at a current of 270 A, and 12 V
batteries at 135 A. Moreover, two or more TORKEL 820 units and/
or extra load units, TXL, can be linked together if you need higher
current. Discharging proceeds at constant current, constant power
or constant resistance, or in accordance with a pre-selected load
profile.
The TORKEL 820 issues a warning and/or shuts down the test
automatically when a) the voltage has dropped to a certain level,
b) discharging has continued through a certain time interval or c) a
certain amount of capacity has been dissipated.
TORKEL 820
Battery Load Unit
Application example
Testing can be carried out without disconnecting the battery from
the equipment it serves. Via a DC clamp-on ammeter, TORKEL 820
measures total battery current while regulating it at a constant level.
The TORKEL 820 is connected to battery, the current and the volt-
age alarm level are set. After starting the discharge TORKEL 820
keeps the current constant at the preset level. When the voltage
drops to a level slightly above the final voltage, TORKEL 820 issues
an alarm. The total voltage curve and the readings taken at the
end of the test are stored in TORKEL 820. Later, using the TORKEL
Win program, you can transfer these readings to your computer for
storage, printout or export. If your PC is connected to TORKEL 820
during the test, TORKEL Win builds up a voltage curve on the screen
in real time and displays the current, voltage and capacity readings.
You can also control the test using TORKEL Win.