Atec T-R-750ADM - Manual

750ADM
750ADM-H
Features
· Primary injection up to 750A
· 2.8V output (750ADM)*
4V output (750ADM-H)*
· 16V 40A output for secondary injection
· True RMS memory ammeter with
single cycle capture
· Multi-function timing system
· Large back-lit liquid crystal display
· Thermal and over-current protection
· Automatic switch-off at end of test
· Compact and portable
· Automatic mains voltage selection*
T&R Test Equipment is a market leader in the field of current
injection equipment. The range includes secondary injection
units with 100A 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 750ADM mk2 and 750ADM-H mk2 are compact, rugged
primary current injection systems with a 750A output
capability. The 750ADM has a maximum no load output
voltage of 3.5V and the 750ADM-H has a maximum voltage
of 5V. The units are ideally suited to all low power primary
injection tasks requiring up to 750A for short periods.
Where higher currents and powers are
required for primary injection, 11kVA and
20kVA primary injection systems are
available. The PCU1-SP and
PCU2/E systems have separate control
and loading units, allowing a wide range
of load conditions to be covered with
different loading units.
The units have two outputs, allowing injection of currents as
low as a few hundred milliamps and up to 750A. Voltages up
to 16V are available on the 40A output, allowing higher
impedance trips to be tested. Four true RMS metering
ranges are provided, allowing the full scale of the meter and
trip level to be set independently of the selected output. The
metering has a capture time of less than 20ms, allowing the
rms of a single cycle to be accurately measured. Industry
standard connectors are used on all inputs and outputs for
convenience, reliability and safety.
The 750ADM and 750ADM-H are comprehensively protected
by electronic overcurrent and thermal trips.
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 contact
inputs are provided, each of which may be trigged by a volt-
free contact or a dc voltage. The contact inputs auto-sense
for normally open or normally closed contacts.
The 750ADM can be used to test many devices including:
·
Circuit breakers
·
Primary injection of over-current relays
·
Auto-reclosers
·
MCB’s
·
CT ratio (with external meter for secondary current)
Unit type Max. power Max. current
750ADM 2kVA 750A
750ADM-H 3kVA 750A
PCU1-SP+NLU5000 11.5kVA 3kA 5min/5kA 40s
PCU2/E+LU6000 20kVA 6kA
PCU1-SP and NLU5000
*See specifications overleaf
Current Injection
Systems
25
mk2
mk2