Atec T-R-50A-3PH - Manual

50A-3PH
Current Injection System
T&R Test Equipment is a market leader in the field of current
injection equipment. The range includes secondary injection
units with 50A output capability up to 6000A primary injection
systems. All have true RMS metering, a flexible timing
system, and an easy to understand user interface.
The 50A-3PH is a three phase injection system providing
commissioning and maintenance engineers with a flexible
system for testing protective systems. It has an easy to
understand panel layout and a simple user interface. The
status of every function can be seen at a glance, and there
are no complex menus to navigate.
The unit has a range of outputs allowing injection of currents
as low as a few mA and as high as 50A. Voltages up to 18V
are available on the main outputs. Three true RMS metering
ranges are provided, allowing the full scale of the meter and
trip level to be set independently of the selected output.
Industry standard safety connectors are used on all inputs
and outputs for convenience, reliability and safety.
The 50A-3PH is comprehensively protected by overcurrent,
duty cycle and thermal trips, and keeps the user fully
informed of any trip condition. Auxiliary outputs and inputs
are fuse protected.
An auxiliary metering input is provided and can measure
voltage, current, frequency, and the phase between any of
the current outputs and an external voltage or current.
The timing system is very flexible without compromising ease
of use, allowing trip times, reset times and reclose times to be
quickly measured to a high degree of accuracy. Two
independently isolated contact inputs are provided, and the
timing system may also be used as a stand-alone timer.
The 50A-3ph can be used to test many types of single and
three phase secondary protection including:
•
Over and under current
relays
•
IDMT relays
•
Auto-reclosers
•
Time delay relays
•
Earth fault relays
•
Miniature circuit breakers
•
Power relays
•
Tripping relays
•
Thermal relays
The back-lit display on the 50A-3PH is bright and
clear with a wide viewing angle. The results of a test
can be seen here as they appear on the dis play
Features
•
Clear and simple user interface
•
3 phase current output
•
0-50A per phase output current
•
True RMS digital metering
•
Memory ammeter
•
Multi-function timing system
•
Auxiliary metering input
•
Large back-lit liquid crystal display
•
Thermal and over-current protection
•
Compact and portable
•
220V 3
φ
or 400V 3
φ
supply options*
•
115V-440V 3 wire supply with
optional supply transformer
*See supply requirements overleaf
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