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Switch Selectable AC Power for the most
demanding applications
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Programmable AC test power, 45 to 5000 Hz
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Power line susceptibility tests: spike, sag, surge
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Flexible, expandable lab power
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Precision frequency conversion
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High reliability UPS
Precision Performance
Design Excellence
Unmatched
Flexibility
If you are unwilling to compromise your
power quality and reliability, consider the power source that
has proven itself in thousands of demanding applications -
Pacific G-Series.
The simple design concepts used in Pacific's G-Series
equipment have resulted in continuous application expansion
since product inception. Exceptional reliability and
serviceability are a hallmark of G-Series equipment and have
placed G-Series in the most demanding applications for AC
Power in the world.
The Controller provides very sophisticated BUS programmable
transient simulations for a wide range of applications.
Power modules provide output frequencies up to 2,000 Hz
(5,000Hz optional). Modules have excellent peak current
capability and are short circuit protected with auto
recovery.
Power modules utilize linear power amplifier technology to
provide high quality power and microsecond response to
controller stimulus and load power demand.
Output autotransformers provide a broad range of output
power forms with exceptionally high performance for faithful
transient simulation.
Power modules operate in single or three phase mode as
driven by the controller.
Power modules contain redundant output devices which are
electronically disconnected from system output if failed.
Identification of suspect module is made through service lamps
and diagnostic meter on each power module. Power modules
themselves are redundant and can be replaced on-line without
shutting down output power.
G-Series Systems may vary in power from 18 to 90 kVA.
Universal, wide range input magnetics include tap options
for common power forms found throughout the world.
System Configuration
G-Series Systems are readily configurable as frequency
converters, line conditioners, programmable test systems, and
uninterruptible power systems.
The basic building block of a G-Series AC Power System is
the mainframe. The mainframe consists of the cabinet and AC to
DC power supply. Up to five mainframes may be paralleled to
increase system output power up to 90 kVA.
Each Pacific power source is burned in and meticulously
tested before it can leave the Pacific factory. With close
attention to detail, handcrafted workmanship comes through
with every system delivered.
Due to its modular design, failed device disconnect
circuitry, and on-line module replacement, Pacific G-Series
Systems are unmatched in reliability and ease of service.
Model Number Information
Standard Models are complete systems ready for use,
including cabinets, oscillators, input circuit breakers and
output contactors. Use model designations below to design the
system that is right for your application.
Model Number Information Table
Control and Power Option
301-C Variable Control Module (Manual)
Provides for selection of three different control
options:
Internal fixed frequencies of 50, 60, and 400 Hz.
Continuously variable oscillator from 47 to 500 Hz.
External signal generator.
Provides for selection of the output power form:
Single phase operation or
Three phase operation
Provides control of the mainframe output contactor to
turn power on and off.
301-F Universal Control Module (Manual)
Provides for selection of three different control
options:
Internal fixed frequencies of 50, 60, and 400 Hz.
External signal generator.
Input from the SCU/UPC 32 Programmable Controller from
45 to 5000 Hz.
Provides for selection of the output power form:
Single phase operation or;
Three phase operation
Provides control of the mainframe output contactor to
turn power on and off.
SCU/UPC32 Programmable Controller
Provides total control of the output signal from either
the front panel keypad or from a remote computer via the
IEEE or RS-232 (optional) BUS. Programmable parameters
include:
Frequency
Frequency transients
Phase angle separation
Voltage amplitude
Voltage amplitude transients
Transient phase (any combination of phases)
Transient starting phase angle
Waveform generation
Requires universal control module
Power Modules (Standard)
120-GR: Enhanced power modules for applications requiring
motor starting, high short circuit current, frequencies from
45 to 2,000Hz (5,000Hz Optional) and fast transient and
harmonic reproduction.
Output Magnetics
Special Features Available with the SCU/UPC 32
Programmable Controller
Continuous Self Calibration
Provides
for exceptional accuracy of the AC output Voltage. When
enabled, accuracy improves to ±0.03% referenced to the power
source internal voltmeter.
Programmable Dynamic Output Impedance
(optional)
Programmable Output Impedance provides
dynamic control over the output impedance of the AC Power
Source. Using the output current term as conditioned feedback
signal to the output voltage circuits, positive or negative
impedance may be programmed. This control simulates the
effects of or compensates for high peak current, distribution,
or transformer losses of up to ±10% of the output voltage.
This feature creates positive, negative, or zero output
impedance (Zo).
Waveform Library
Up to 99 different
waveforms may be stored in the waveform library for execution
as part of a steady state test program or for substitution in
any output phase as part of a transient test program. Memory
location #1 is a non-editable high resolution sine wave.
Locations 2-16 are editable and may be substituted in any
output phase. Locations 17-32 are factory stored, non editable
waveforms that may be copied to 2-16 for edit and
execution.
Waveform Edit
Provides the ability to
modify a stored waveform by specifying the waveform amplitude
desired at each specific phase angle. This method can quickly
create spikes, dropouts, notches and other sub-cycle wave
conditions. The resulting modified waveform can be stored for
execution.
Waveform Analysis (optional)
Provides
both a graphic and numeric display of the harmonic structure
of a voltage or current waveform. The waveform is sampled at
512 samples per cycle using a 12 bit A/D converter. The
resulting high fidelity waveform is analyzed for its harmonic
structure up through the 51st harmonic. Data presented
includes the magnitude of each harmonic in %, the total
harmonic distortion, and the odd and even harmonic distortion
in %. Displays Vrms, Irms, Ipk, Power, VA and PF.
Waveform Synthesis (optional)
Allows
you to quickly create virtually any AC Test Waveform that may
be required by building it out of harmonics. The process is as
simple as keying in the harmonic multiple, the amplitude, and
the phase angle for each desired harmonic up through the 51st.
If desired, waveforms may also be created in the time domain
by making entries from the front panel or by downloading from
a host PC.
Time Based Transients
Provides the
ability to create and execute on command, transients that
occur linearly over a specified time segment to modify output
voltage or frequency.
Cycle Based Transients
Create and
execute on command, transients that substitute a selected
waveform in the output for 1 to 100 cycles. The waveform being
substituted can be selected and/or modified from the waveform
library. Substitution is for an integer number of cycles,
regardless of frequency.
Electrical Specifications
Output Power:
See model listings for
appropriate full power ratings.
Output Voltage:
Nominal system voltage
is 125 VL-N three phase or single phase. Output voltage is
fully adjustable from 0-125 VL-N. Three phase forms are
configured as WYE and are capable of being loaded either DELTA
or WYE.
Alternate Output Voltage:
For output
forms other than the nominal 125 VL-N refer to System Block
Diagram.
Output Frequency:
Standard with SCU/UPC
32 Programmable: 45-2000 Hz (45-5000 Hz is an option).
Output Current:
See model listings.
Peak currents listed are available at the crest of the voltage
sinewave for driving inverter or power supply loads without
distortion or limiting.
Load Power Factor:
Output will drive
loads of any power factor leading or lagging.
Load Balance Restriction:
None - all
performance specifications apply with any amount of load
imbalance.
Load Transient Response:
120-GR, 10
microseconds maximum. Applies to a 100% step change in load,
any phase, or any combination of phases.
1 Phase/3 Phase Operation:
A manual
switch allows conversion from 1 phase power forms to 3 phase
power forms, instantly. 3 phase systems may be loaded either
as WYE or DELTA.
Input Power
Forms:
The G-Series power source is capable of
operating from any of the listed input power forms:
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Form A: 240 VAC, 3 DELTA, 47-63Hz.
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Form C: 120/208 VAC, 3 WYE, 47-63 Hz.
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Form D: 460 VAC, 3 DELTA,
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3 Ungrounded WYE, 47-63 Hz.
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Other power forms are available; consult factory.
Failure Isolation System:
Any failed
output device, multiple devices or power module is
electronically disconnected from system output. Failure
location is identified by service lamps and diagnostic meter
on each power module. Service can be provided when convenient
by replacing power modules.
Power modules can be replaced WITHOUT system shutdown and
without disturbances to system operation.
UPS Option
When performance, maintenance and logistics cannot be
compromised choose Pacific Power Source Systems.
Pacific's UG-Series Uninterruptible Power Source (UPS)
Systems are configured from standard G-Series AC Sources and
UG-18 Battery Support Cabinets. The UG-18 Battery Support
Cabinet is a complete battery back-up system that supports any
of the G-Series AC Power Source Systems (6,12, or 18 kVA). One
UG-18 cabinet is provided with each G-Series mainframe
offering paralleled systems up to 90 kVA.
Mechanical Specifications
Dimensions (390-G):
A. Height: 50",
w/caster base 78"
B. Height: 50.5", w/forklift base
78.5"
C. Width: 23"
D. Depth: 34.5"
Weight: 1,000
Lbs.
Air Flow: 2,000 CFM
Each G-Series mainframe is provided on a caster base with
leveling feet for ease of installation.
Forklift or shock mount base is optionally available.
Consult the factory for details.
Pacific designs and manufactures a broad range of AC Power
Sources and Analyzers. Models range from 500 VA to 625 kVA.
Applications include frequency conversion, AC Test Power, IEC
Conformance Testing, and Uninterruptible AC Power Sources.
Specifications are subject to change without
notice.
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