Test Equipment Represented by
D'EWART REPRESENTATIVES L.L.C.
BATTERY TEST EQUIPMENT
BITE2 & BITE2P Battery Impedance Test Equipment
•
Determines condition of lead-acid and NiCd cells up to 7000 Ah
• On-board Pass/Warning/Fail indications
• Robust, repeatable instruments
• On-line testing
The BITE 2 and BITE 2P Battery Impedance Test Equipment determine the condition of lead-acid and nickel-cadmium cells up to 7000 Ah. An advanced feature set has been developed that includes Pass/Warning/Fail calculations based on a user-entered baseline value, advanced printing functions and more. The case of the BITE 2P consists of both the transmitter and a carrying case for all of the standard accessories and some of the optional accessories, in an all-in-one unit. The BITE 2 and its accessories fit into a sturdy canvas case with a shoulder strap.
The instruments work by applying a test current across the battery string
while on-line, then measuring the total current (ac ripple + test current)
and the voltage drop of each cell/jar. It then calculates the impedance.
They also measure dc voltage and interconnection (strap) resistance to
help determine the overall condition of the entire battery string's
electrical path from terminal plate to terminal plate.
The BITE 2 and BITE 2P receiver stores the readings in its
internal memory. These measurements, along with other maintenance data
such as ambient and pilot cell temperatures and ac ripple current, assist
in determining the overall condition of battery systems. Megger recommends
that impedance measurements with the BITE 2 or BITE 2P be made part of a
battery maintenance program with readings taken and recorded semiannually
for flooded batteries and quarterly for VRLA.
Unlike load cycle testing that involves substantial downtime and repeated
discharges, using the instruments require no battery discharge, nor do
they stress the battery in any way compared to other techniques. With a
test time of less than 20 seconds for each cell and intercell connector,
one person can easily, quickly, and precisely measure internal cell
impedance, dc terminal voltage and intercell connection resistance without
taking the battery system off line.
Naturally, everything you need to perform these tests is included with the basic instruments. There is a full line of optional accessories to enhance the capabilities of the BITE 2 and BITE 2P. Both have the ability to download to a PC for data interpretation. Additionally, the BITE 2P has a built-in printer to review the active test but also to leave a hard copy record at the site.
BATTERY
GROUND FAULT TRACER
•
Ground faults in ungrounded dc battery systems easily located
• Operates in high electrical noise environment
• Simplifies fault tracing by identifying fault characteristic
(resistive and capacitive) magnitudes
The Battery Ground-Fault Tracer is an economical, manually-balanced
instrument that identifies, tracks and locates ground faults in ungrounded
dc battery systems - on-line. It is particularly effective in a high
electrical noise environments, as the strength of the test current can be
adjusted.
The Battery Ground-Fault Tracer accelerates fault location by eliminating
trial-and-error procedures and because faults can be located without going
off-line. It is particularly useful in any industry where supply of power
for operating measurement, communication and control equipment is
critical.
•
Ground faults in ungrounded dc battery systems easily located
• Operates in high electrical noise environment
• Simplifies fault tracing by identifying fault characteristic
(resistive and capacitive) magnitudes
This instrument was developed to detect, track and locate
ground faults on battery systems - without resorting to sectionalizing!
Model BGL tracks and locates ground faults on live or dead battery
systems. To save hours of unnecessary troubleshooting, the BGL readily
differentiates between the resistive fault currents and capacitive
charging currents. This feature allows the instrument to detect and track
leakage paths, even in the presence of surge-suppression capacitors.