Atec T-R-200ADM User Manual

200ADM Current Injection System

Features

• Clear and simple user interface

• 0-200A output current

• True RMS digital metering with

memory ammeter

• Multi-function timing system

• Auxiliary DC output

• Variable auxiliary AC output

• Auxiliary metering input

• Large back-lit liquid crystal display

• Thermal and over-current protection

• 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 200ADM is one of a new generation of products, and
provides 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 back-lit display on the 200ADM is bright and

clear with a wide viewing angle. The results of a test

can be seen here as they appear on the display

An auxiliary metering input is provided and can measure AC
and DC voltage, current, frequency, and the phase between
the main current output and an external voltage or current. A
stabilised DC supply is provided to power the relay under
test, along with an independently variable AC output.

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.

The unit has a range of outputs allowing injection of currents
as low as 1mA and as high as 200A. Voltages up to 240V
are available on the main outputs, allowing high impedance
current relays and voltage relays 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. Industry standard safety connectors are
used on all inputs and outputs for convenience, reliability and
safety.

The 200ADM is comprehensively protected by overcurrent,
duty cycle and thermal trips, and keeps the user fully
informed of any trip condition.

The 200ADM can be used to test many types of single phase
secondary protection including:

• Over and under current relays

• IDMT relays

• Over and under voltage

relays

• Auto-reclosers

• Time delay relays

• Differential relays

• Earth fault relays

• Miniature circuit breakers

• Power relays

• Tripping relays

• Thermal relays

200ADM Specification

Main Output

The main output on the unit has four taps, allowing the selection
of output voltages up to 240V and output currents up to 200A.

Range Continuous 5 minutes 1 minute 6 sec.

10V 25A 50A 100A 200A*
35V 10A 20A 30A
100V 3A 5A 10A
240V 1A 2A 3A
240V DC 1A 2A 3A

The above intermittent on times must be followed by an off time
of 15 minutes, and are based on an ambient temperature of 25°C.

*6 second intermittent ratings available with 230V supply.

Auxiliary AC and DC Outputs

A switched, isolated auxiliary DC supply is available to power the
relay under test. The output is protected by a fuse and
electronic trip circuit.

DC stabilised output 24V 1.04A
48V 0.52A
60V 0.42A
110V 0.23A
220V 0.11A

Variable AC output 0-130Vac 300mA
The variable AC output is isolated, switched, and fuse protected.

Metering

The output is metered by a digital true RMS system with a
memory ammeter - whenever the timer stops and the output is
switched off, the current reading is held on the display.

Range Resolution Trip current Accuracy

5.000A 0.001A 5.5A ±0.5%rdg+5d

20.00A 0.01A 22A ±0.5%rdg+5d

50.00A 0.01A 55A ±0.5%rdg+5d

200.0A 0.1A 220A ±0.5%rdg+5d
A current trip is automatically set to 110% of full scale of the
selected metering range to protect the device under test.

Auxiliary Metering Inputs

An auxiliary metering input is provided which is able to measure
RMS and DC voltage or current. In addition the frequency of the
external input may be measured, and the phase measured
between the main output current and the auxiliary metering input.

Setting Range Resolution Accuracy

Volts (DC) 270.0V 0.1V ±0.7%rdg+5d
Volts (AC) 270.0V 0.1V ±0.7%rdg+5d
Amps (DC) 5.000A 1mA ±0.7%rdg+5d
Amps (AC) 5.000A 1mA ±0.7%rdg+5d
Phase 0.1° ±3°
Frequency 20-100Hz 0.1Hz ±0.2%rdg+1d
The current input is protected by a F6.3A fuse.

Supply Requirements

115V±10% 50/60Hz 1ph 2300VA max
230V±10% 50/60Hz 1ph 2300VA max
The correct range is automatically selected by the unit.

Timing System

Range 0-999.999s
Resolution 1ms
Accuracy 0.1%rdg+2d (+4d current operated mode)

The contact circuit has an open circuit voltage of 24Vdc and a
short circuit current of 10mA. Each contact circuit will auto­select for normally open or normally closed contacts. A DC
voltage of 24-240Vdc may also be used to trigger either timer
channel. The output is automatically switched off at the end of
the test to safeguard the relay under test.

The following functions are provided:

Mode Timer Start Timer Stop

Internal start Press ‘ON’ Contact 1 or 2
Single contact Contact 1 Contact 1
Dual contact Contact 1 Contact 2
Current operated Current > 10% Current < 10%
of range of range

Pulse mode is used for setting the current level in devices
sensitive to heating, and allows current to be injected for 400ms
and the current recorded.

RS232

An RS232 port is provided to allow connection of a printer.

Protection and Safety

The unit is protected by electronic over current, duty cycle trips
and thermal monitoring on the outputs and fuses on the input
and regulator. The auxiliary AC output is fuse protected, and the
stabilised DC output is protected by an electronic trip and fuse.
An earth terminal is provided for connection to a local earth. The
unit is designed to comply with BSEN61010, and is CE marked.

Temperature Range

Storage -20°C to 60°C Operating 0°C to 45°C

Lead Set specifications

The 200ADM is supplied with a lead set including:
2 x 5m 25mm

2 x 5m 2.5mm
1 x 5m 2 core auxiliary leads terminated in 4mm plugs
The lead set is supplied in a plastic carrying case.

2

200A leads terminated in M10 ring crimps

2

25A leads terminated in 4mm plugs

Dimensions Weight

380mm x 314mm x 221mm 20.7kg

Including handle and corner protectors

Accessories

Operating manual, o/p lead set, mains lead, spare fuses

Optional Accessories

Filter unit, Printer, 200ADM-DRE (see below), pushbutton lead
for runback timing on disc induction relays.

Optional 200ADM-DRE extension unit

The 200ADM-DRE converts the auxiliary
ac output into a 0-5A 6.8V or 0-10A 3.4V
current output, allowing bias differential
relays to be tested. The unit may also be
used in other situations where a second
current output is required from the 200ADM.

Note: Due to the company’s continuous research programme, the information above may change at any time without prior notificatio n. Please check that you have the most recent data on the product.

16/03/04 200ADM Data Sheet Rev 10

T&R Test Equipment Ltd, Keens Lane, Worplesdon, Guildford, Surrey, GU3 3LS, UK

Tel: [phone] Fax: [phone] email: [e-mail]

www.trtest.com