Atec Megger-DDA-1600 - Manual (Page 3)

DDA-1600
Circuit Breaker Test Set
SPECIFICATIONS
Input
Other input voltages are available with an optional input
autotransformer, Model AT-5: 208/240/575 V, 1.
(Refer to the Optional Accessories section.)
Digital Timer
Digital Display: 5-digit display with 0.281 in. (7 mm) numerals
Ranges
0.0001 to 99999 seconds
0.0001 to 99999 cycles
Accuracy: ±1% of reading
Digital Voltmeter
Operating Mode
Input voltage
Output voltage
Digital Display: 5-digit display with 0.281 in. (7 mm) numerals
Ranges
Up to 600 V
Accuracy
±1% of reading
OPTIONAL ACCESSORIES
Model AT-5 Input
Autotransformer
If nameplate input voltage is not available, or if Model DDA-1600
is to be used at various locations with different input voltages,
specify Model AT-5 Input Autotransformer.
The multitapped autotransformer with power ON/OFF switch and
appropriate sockets and plugs is housed in a rugged, sheet-metal
enclosure with casters and handles.
Model DDA-1600 is designed to be placed on top of Model AT-5,
providing a compact, transportable system. Model AT-5 tap
selections are: 208, 240 and 575 volts, 60Hertz, single-phase. For
other input voltage and frequency, contact Technical Sales.
Model AT-5 may reduce the maximum output of the test set. For
example, a 208-volt input, stepped up to 460 volts, may not be
sufficient to provide maximum output.
Transport Cart
The transport cart is a mobile base that supports Model
DDA-1600. This allows the test set to be rolled from one
test site to another.
Stab Adapter
To obtain the maximum output current of the unit, the
appropriate stab adapter connects the output bus of Model
DDA-1600 in a parallel configuration while providing an output
base for stab set Models CBS-1, CBS-2 or CBS-3. The Model
DDA-1600 test set uses Stab Adapter Model CBS-7.
Refer to the catalog entry for Circuit Breaker Stab Sets to
determine the proper stab set selection.
Model No. Input Voltage
(single phase)
Input
Frequency
Input
Current
DDA-1600/50
DDA-1600 460 V ± 5%
380 V ± 5%
60 Hz
50 Hz
150 A
150 A
Model No.
Maximum
Continuous
Current
Maximum Current
Through Air-Frame
Circuit Breaker
Maximum Current
Through Molded-Case
Circuit Breaker
DDA-1600/50
DDA-1600 1,600 A
1,580 A
19,200 A
16,000 A
14,400 A
12,000 A
Output Current
Output
The output of the test set is easily adjustable from zero to the
maximum current available through the impedance of the device
under test. For low-current, high impedance devices, the output
can be connected in series with the optional series bar to double
the output voltage.
Model DDA-1600 will deliver the rated continuous current for a
24 hour period.
The maximum current available from the test set is determined
primarily by the test-circuit impedance. The duration of the
available current is determined by the thermal conditions within
the test set.
The maximum current through an air frame circuit breaker is the
maximum current the test set can deliver through a breaker
connected with stabs.
The maximum current through a molded-case circuit breaker is
the maximum current the test set can deliver through a breaker
connected with 5 ft (1.5m) cables provided.
Instrumentation
Digital Ammeter
Operating Mode
Memory
Continuous
Digital Display: 5-digit display with 0.281 in. (7 mm) numerals
Ranges: 200/2000/20,000/200,000 A
Overall Ammeter System Accuracy
Continuous: ±1% of reading
Peak Pulse: ± 2% of reading
RMS Pulse: ±1.5% of reading
Model No. Module
Weight Dimensions
Power
Output
DDA-1600
lb
19
100
210
kg
8.6
45.4
95.4
H x W x D (in.)
9.9 x 14.1 x 11.3
14 x 29 x 12.5
7.5 x 33 x 18
H x W x D (cm)
27 x 54 x 24.8
35.6 x 73.6 x 31.8
19 x 83.8 x 45.7
Control and
Instrumentation