AC Power Systems
Test All Products Operating
from AC Power
nn Voltage ranges up to 400 V RMS, L-N
Standard 135/270 V or optional
ranges to 400 V
nn Single- and Three Phase Models
3 kVA to 30 kVA products reconfigurable for single- or three-phase
operation (MODE option)
nn High Peak Current Capability
Up to 9:1 crest factor for driving high
peak current loads
nn High Frequency Range
Capable of output frequencies up to
5000 Hz on some
models
L-Series
Full Capability
AC Sources
for Product Test
Controller Choices:
nn Simulate Non-Standard AC
Line Conditions
Line disturbance simulation
nn Monitor Load Parameters
Without Additional Instrumentation
Full measurement capability
on programmable controllers
High Frequency PWM Design
nn Rack Space Savings up
to 50 %
Small front panel size and
weight for precision power
nn High Efficiency
Generates less heat and
consumes less input
power
Now you can test any product
that operates from AC power with
the most compact, versatile
power source in the test industry.
The L-Series’ small size provides
more power per inch than most
other AC supplies. Highly efficient, these products dissipate
less heat than previous generation systems and allow up to an
additional 10 % output power.
With a programmable controller,
L-Series models provide the most
comprehensive set of programmable functions in the industry.
Automatic remote calibration and
comprehensive self-tests simplify
maintainability.
All L Series units are completely self-contained. Control is
through an embedded oscillator,
factory configured to your specific
requirements. Output parameters
are controlled via the front panel
or the IEEE-488 bus. Bus pro-
gramming, standard with -P,
-PT and HGA controllers, allows
programming and measurement function readback compatible with a number of other
standards including VXI, MXI
and RS232 via recommended
translators. To simplify programming, the standard unit
supports both Abbreviated Plain
English programming and an
ATLAS-based control language.
For avionics applications, any
3-phase model can be configured with 26 V and 5 V auxiliary
outputs. (AX option)
The L Series is ideal for applications where small size, low
heat dissipation and light weight
are important. These include
DC power supply testing, production test, quality assurance
verification, engineering and
ATE.
Our broad range of models lets you choose the right power level for your application
Model Power Phase2Current in 135 V range Cur/phase Size Weight
at 35° C
1
A rms A peak3A peak43ø mode (H x W x D)
751L 833 VA 1 6.2 55.6 60 n/a
1501L 1667 VA 1 12.3 55.6 60 n/a 5.25” x 19” x 23” 85 lb
1503L 1667 VA 3 4.1 9.3 10 4.1 133 x 483 x 584 mm 38.3 Kg
2001L 2000 VA 1 14.8 55.6 60 n/a
2750L 3000 VA 1 or 3 22.2 83.3 90 7.4 10.5” x 19” x 23” 175 lb
4500L 5000 VA 1 or 3 37 83.3 90 12.3 267 x 483 x 584 mm 97.2 Kg
6000L 6000 VA 1 or 3 44.4 157.4 170 14.8
9000L 10000 VA 1 or 3 74 166.7 180 24.7 21” x 19” x 23” 350 lb
12000L 12000 VA 1 or 3 90 314.8 340 30.0 533 x 483 x 584 mm 158 Kg
13500L 15000 VA 1 or 3 111.2 250.0 270 37.0 31.5” x 19” x 23” 525 lb
18000L 18000 VA 1 or 3 133.2 472.0 510 44.4 800 x 483 x 584 mm 238 Kg
Notes: 1 Derate power by 10% for operation at 50° C ambient or when using the -UP option 3 Repetitive peak current capability
2 1 or 3 phase systems are factory configured unless the “MODE” option is specified 4 Non repetitive peak inrush current
The L-Series offers the ultimate in flexibility. Select the power level best suited to your requirements. Then
select the controller that provides the functions important to you. Complete your selection by choosing from
the L-Series’ comprehensive list of options, and you have a truly custom solution at an “off-the-shelf” price.
All L-Series Models Conform to These Specifications:
Output Voltage Ranges
Standard: 0-135 V, L-N
0-270 V, L-N
-HV Option: 0-156 V, L-N
0-312 V, L-N
-LV Option: 0-67.5 V, L-N
0-135 V, L-N
-EHV Option: 0-200 V, L-N
0-400 V, L-N
Total Harmonic Distortion
45 Hz to 2 kHz: 1 percent
To 5 kHz: 2 percent
50/60 Hz: 0.5 percent typical
Line Input
Models 751L, 1501L, 1503L,
2001L:
115 V or 230 V single phase
47 Hz to 440 Hz
Models 2750L, 4500L, 6000L,
9000L, 12000L, 13500L, 18000L:
187 V - 252 V, L-L, 3 phase
(342 V - 456 V, L-L, 3 phase with
-UP option, except 6000L,
12000L and 18000L)
2750L: 1 or 3 phase input 187 -
252 V
Output Frequency
See V-F derating for 17 Hz to 45
Hz performance
Models 751L, 1501L, 1503L,
2001L, 2750L-3, 4500L-3 and
6000L-3:
17 Hz to 5 kHz
Models 2750L-1, 4500L-1, 9000L
and 13500L:
17 Hz to 2 kHz
Models 6000L-1, 12000L and
18000L:
17 Hz to 440 Hz
All models with -PT controller:
17 Hz to 550 Hz except 6000L,
12000L and 18000L
AC Noise Level
160 mV rms typical
Connectors
nn Input provided on rear terminal
block
nn Output provided on rear
terminal block (Remote sense
Protection
nn Overcurrent
nn Overpower
nn Short circuit
nn Overtemperature
nn Current limit trip standard with
Rating Curves
mating connectors are provided)
programmable units. All units
have adjustable current limit.
Three Different Controllers Offer Programmability Choices
1
Specification Programmable -P Programmable -PT Manual -M
Controller Type Programmable controller Fast Transient controller Manual control oscillator
Voltage
Range 0 - 135 V / 0 - 270 V L-N 0 - 135 V / 0 - 270 V L-N Variable pot control
Accuracy ± 0.135V from 5 V to 135 V ± 0.7 % FS from 5 % to FS Variable control
Load Regulation TRMS Sense: ± 0.05 % FS - 0.5 % FS from 45 Hz to 100 Hz ± 0.05 % from 45 Hz to 5 kHz
Line Regulation ± 0.02 % FS for ± 10 % ± 2 % of full output for ± 0.02 % of full output for
Stability ± 0.015 % FS over 24 hours at ± 0.25 % FS over 24 hours at ± 0.015 % FS over 24 hours at
Initial value 0.0 or 5.0 Vrms field selectable 0 Vrms N/A
Settling time 16 msec, no-load from 0.5 msec N/A
Programmable THD N/A 0 - 20 % THD clipped sine N/A
Amplitude Modulation N/A 0 to 5 V RMS generates 0 to 11 % 0 to 5 V RMS generates 0 to 11 %
Frequency
Range 2750L-1P, 4500L-1P 6000L, 12000L and 18000L: 2750L-1M, 4500L-1M
Resolution 0.01 Hz; 45.00 Hz to 99.99 Hz 0.01 Hz; 45.00 Hz to 99.99 Hz 3 digits
Accuracy ± 0.001 % of programmed value ± 0.001 % of programmed value ± 0.005 % of set value
Initial value Any within range Any within range Setting
External Sync Input TTL level TTL level N/A
Phase
Range Phase B and/or C relative to Phase B and/or C relative to N/A
Accuracy ± 2 ° ± 2 ° ± 3 °
Current
Programmable Limit Adjustable trip Adjustable trip Adjustable foldback with
Remote Inhibit Contact closure turns Contact closure trips unit Contact closure turns
Measurements
Voltage resolution 0.1 Volt, accuracy ± 10 digits N/A
Current resolution 0.01 Amp or 0.1 Amp, accuracy ± 10 digits N/A
Power resolution 1 W or 0.01 kW, accuracy ± 10 digits N/A
Phase angle resolution 0.1°, accuracy ± 2° to 2 kHz, ± 3° to 5 kHz N/A
Power Factor range 0.000 to 0.001 N/A
Frequency resolution four decades, accuracy ± 0,02 Hz to 99.99 Hz, N/A
Apparent Power resolution 1 VA or 0.01 kVA, accuracy ± 10 digits N/A
Programmable range change Programmable range change Switchable range change
Individual phase programming Individual phase programming Option -RPV for 0-FS control
using 0 - 10 VDC input.
± 0.54 V from 135 V to 270 V Constant line, load and Analog meter readback
@ 25° C ± 1° C temperature @ 25° C ± 1° C
no load to full load - 2 % FS from 100 Hz to 550 Hz
line change a ± 10 % line change a ± 10 % line change
constant line, load and temperature constant line, load and temperature constant line, load and temperature
5 V to within 2 % of final value;
16 msec, full load from
5 V to within 15 % of final value
1 % resolution
amplitude modulation of output amplitude modulation of output
voltage. 45 Hz to 5 kHz input voltage.
and all multibox systems: 45 to 440 Hz and all multibox systems:
45 Hz to 2 kHz All other models: 45 Hz to 2 kHz
-3P and 751L - 2001L: 45 Hz to 550 Hz -3M and 751L - 2001L:
45 Hz to 5 kHz 45 Hz to 5 kHz
6000L, 12000L and 18000L: 6000L, 12000L and 18000L:
45 Hz to 440 Hz 45 Hz to 440 Hz
0.1 Hz; 100.0 Hz to 999.9 Hz 0.1 Hz; 100.0 Hz to 550.0 Hz
1 Hz; 1000 Hz to 5000 Hz
phase A: 0 to ± 360° in 0.1° phase A: 0 to ± 360° in 0.1°
increments increments
recovery
output off off. Sets defaults. output off
± 0.2 Hz to 500.0 Hz, ± 0.5 Hz to 999.9 Hz, ± 10 Hz to 5 kHz
Note 1 One of these three controller types must be specified when ordering a L Series power source or, for Arbitrary waveform generation,
refer to the HGA controller.
Plug-in Controller Concept Provides Choice of Features
All L-Series models offer a choice of
three controllers, allowing you to specify
the levels of performance and control
best suited to your requirements.
Type -P, the standard programmable
controller, uses True RMS sensing, providing the most accurate output voltage regulation. Output settling times for
the -P controller are longer than the
-PT controller due to the RMS sense
response time. With Type -P, transients
are programmable over time or cycles.
Type -PT uses a fast real-time servo,
instantly creating exact waveform definitions ideal for applications such as
switching DC power supplies where
real-time feedback and fast output settling times are critical. The -PT controller is recommended for applications
that require fast transients to be programmed over time or cycles.
Type -M, the manual controller, is
ideal for portable or benchtop applications where local control is sufficient.
An optional remote programmable voltage input can be added to allow amplitude control using a DC input signal.
Single and Three Phase Versions
All controllers are available in either
single or three phase versions. For special applications, two phase or split
phase configurations can be ordered as
well. For three phase -P and -PT controllers, a phase mode option can be
added which allows switching between
both single and three phase output
modes without the need to rewire the
output terminals.
Measurements
Both -P and -PT controllers provide
a full range of output readback measurements , either via front-panel display or over the standard IEEE-488 bus.
Measurements provided are Volt RMS,
Current RMS, Power, Apparent Power,
Power Factor, Frequency and Phase.
Controller and Amplifier Options
The L Series is highly configurable
using a wide array of options for both
the amplifier and the controller. This
makes the L Series one of the most
versatile AC power solutions on the
market. If your application requirements
can not be met using any of the options listed here, contact the factory for
configuration assistance.
Controller Options Provide Capability for Specialized Testing
-MODE: Allows certain L-Series models to be IEEE-programmed or switch configured for single-phase or three phase
output.
-MT: Primarily for military applications, where CIIL and full confidence test is required. Not available on 751L.
-RPV: Allows amplitude of any L-Series unit, when using a manual oscillator, to be programmed with an external 0 -
10 VDC input.
-SQW: Allows square wave capability with programmable controller. Not available on 2750L-1, 4500L-1, 6000L or
any multi-box system.
-704: MIL-STD-704 test. These test routines are embedded in the -P and -PT controller along with the standard
APE language.
-160: RTCA/DO-160 test. These test routines are embedded in the -PT controller along with the standard APE
language. (not available on -P controller)
L-Series Amplifier Options Provide Additional Flexibility
One of the following may be specified:
-HV: High voltage. Changes output transformer to 156 V/ 312 V, L-N.
-EHV: Extra high voltage. Changes output transformer to 200 V/ 400 V, L-N (45 Hz to 1000 Hz frequencies only).
-LV: Low voltage. Changes output transformer to 67.5 V/ 135 V, L-N. Especially useful when 115 V, L-L is
required.
Any of the following may be specified:
-AX: Provides separate isolated 26 VAC regulated and 5 VAC unregulated outputs. The 26 V is normally used for
servo-synchro excitation, and the 5 V for lamp power. Available on Models 2750L, 4500L, 1503L only.
26 Volt - Accuracy: ±2%. Current Capacity: 3 ARMS. Frequency: 360/440 Hz. Regulation: ±0.05%
5 Volt - Accuracy: ±5%. Current Capacity: 5 ARMS.
-UP: Allows any system configured from Model 4500L and up to accept 3-phase L-L voltage from 342 V to 456 V,
L-L.
-LKM: Clock/Lock Master Unit. Installs necessary hardware to adapt to one slave unit.
-LKS: Clock/Lock Slave Unit. Installs necessary hardware to accept Clock/Lock inputs from LKM unit.
Only one slave unit may be driven from a master unit.
210960 Rack slides. Required for mounting in 19” (483 mm) instrument rack.
Programmable Functions Allow Simulation of Complex Line Conditions
The broad range of programmable
functions available with the L-Series
allow you to test for virtually any line
occurrence. The -P and -PT programmable controllers are equipped with 16
transient registers that can be programmed from the front panel keypad
or the IEEE-488 interface. Here are
some capabilities of the L Series programmable controllers:
Programmable start at 90° on Phase A
nn Set the voltage on each phase
individually with 0.1 volt resolution.
nn Set the frequency with 4 digit
resolution.
nn Set phase angles for phase B
and C with respect to phase A
with 0.1 degree resolution.
nn Set a power surge or blackout
from 1 mSec to 2 hours duration
to simulate power utility generation and distribution problems.
Programmed Voltage Sweep
nn Set the starting point of the
sine wave anywhere from 0 to
360 degrees with 0.1 degree
programming to test for maximum load in-rush current.
nn Select sweep of voltage,
frequency and/or phase angle to
test for catastrophic failure and
brown-out conditions.
nn Program voltage dropouts at
any phase angle, either by time
1/2 cycle dropout at 90°
or cycle count, to test for correct
operation in the vicinity of a
heavy intermittent load such as
an air conditioner or refrigeration
plant.
nn Select internal or external
synchronization signal and
measurement strobe function to
ensure reliable operation in a
complex measurement system
that includes an oscilloscope or
other recording device.
1/2 cycle dropout on Phase C at 400 Hz
nn Save custom setups in non-
volatile memory for easy recall
(front panel or bus)
nn Link memory locations for
complex setup sequencing that
can cover many hours for
complex multi-line standard burnin testing.
Included Windows™ Software Eases Transient Programming
All L Series AC sources shipped with
a programmable controller (-P, -PT or
HGA) include a Windows™ Graphical
User Interface (GUI) program. The GUI
supports all functions and capabilities
of the L Series controller used. The
following tasks can easily be performed
through this graphical user interface
using the IEEE-488 interface (National
Instruments PC IEEE controller required):
• Control all output parameters
such as voltage, current limit,
phase and frequency.
• Compile lists of transient
programs on disk for quick recall
and execution
• Measure and record key output
parameters such as volt rms,
current, peak current, real power,
and power factor.
• Run RTCA/
DO160C
(requires option -
160) or MIL-STD
704D tests
(requires option -
704)
• Monitor remote
control commands over the
bus using the
built in command
viewer window to
quickly learn how
to program the L
Series yourself.
Drivers for popular
programming
environments such as LabView™ or
LabWindows/CVI™ are available as
well for custom software develop-
ment. If needed, the front panel can
be locked out to prevent operator
intervention during test runs.
Mechanical Specifications
Model 751L, 1501L and 2001L
Rear Panels
Order Example
1503L -3P -HV
Basic Model No. Options (See list)
Controller Type:
Designate P, PT, M
and phase (if applicable)
Default Frequency: 400 Hz
Output Voltage Range Initialization: 135V
Input Voltage: 115V
Note:
When ordering, please specify:
nn Output default frequency (60 Hz if not specified)
nn Output voltage range initialization (specify High
or Low)
nn Input voltage for Models 751L, 1501L, 1503L
Ordering Information
Terms: Net 30 days
Delivery: Within 30 days ARO
F.O.B.: Factory San Diego, CA
Shipment: Freight Collect
Contact California Instruments:
Toll-Free: 800-4AC-POWER
Web page: http://www.calinst.com
800-422-7693
FAX: 858-677-0940
Email: sales@calinst.com
9689 Towne Centre Drive, San Diego, CA 92121-1964 (858) 677-9040 FAX : (858) 677-0940
© Copyright 1998, California Instruments Corp. Specifications subject to change without notice Printed in the USA. LSDS 6/98
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