The Chroma 61504 is a high-performance programmable AC/DC power source capable of delivering up to 2000 VA of AC power and 1000 W of DC power. Featuring advanced power line disturbance (PLD) simulation, harmonic synthesis, and high-accuracy measurements, it is widely utilized for R&D, production testing, and QA validation of electronic products.

Specifications

General

ParameterValue
InterfacesGPIB, RS-232, Analog Programming (APG)
DisplayGraphic LCD Display

Physical

ParameterValue
Power Supply90 to 250 V AC, single-phase, 47 to 63 Hz
Operating Temperature0 to 40 °C
Dimensions (W×H×D)425 x 177.4 x 567 mm
Weight30 kg

AC Output Specifications

ParameterValue
Maximum AC Power Rating2000 VA
Output Phase ConfigurationSingle-Phase (1φ)
AC Voltage Ranges150 V / 300 V / Auto
AC Voltage Resolution0.1 V
AC Voltage Accuracy±(0.2% of reading + 0.2% of range)
Maximum RMS Current (Low Range)16 A (at 150 V range)
Maximum RMS Current (High Range)8 A (at 300 V range)
Maximum Peak Current (Low Range)96 A
Maximum Peak Current (High Range)48 A
Frequency RangeDC, 15 Hz to 1000 Hz
Frequency Resolution0.01 Hz (15 to 99.99 Hz), 0.1 Hz (100.0 to 999.9 Hz)
Frequency Accuracy±0.1%
Total Harmonic Distortion (THD)< 0.3% (at 50/60 Hz, resistive load), < 0.5% (at 15 to 400 Hz)
Phase Angle Range0 to 360°
Phase Angle Resolution0.1°
Voltage Line Regulation0.1%
Voltage Load Regulation0.2%

DC Output Specifications

ParameterValue
Maximum DC Power Rating1000 W
DC Voltage Ranges212 V / 424 V
DC Voltage Resolution0.1 V
Maximum DC Current (Low Range)8 A (at 212 V range)
Maximum DC Current (High Range)4 A (at 424 V range)
DC Voltage Line Regulation0.1%
DC Voltage Load Regulation0.2%

Measurement & Readback

ParameterValue
Voltage Measurement Range (RMS)0 - 150 V / 0 - 300 V
Voltage Measurement Accuracy (RMS)±(0.1% of reading + 0.1% of range)
Active Power (W) Measurement Accuracy±(0.4% of reading + 0.4% of range)
Measurement ParametersVoltage (RMS, Peak, DC), Current (RMS, Peak, DC), Active Power, Apparent Power, Reactive Power, Power Factor, Crest Factor
Harmonic Analysis CapabilitiesVoltage and current harmonic measurement up to 50th order

Transient & Waveform Generation

ParameterValue
Output Waveform TypesSine, Square, Clipped Sine, Arbitrary
Harmonic Synthesis & Inter-HarmonicsSynthesizes up to 40 orders of harmonic components
List/Step/Pulse Mode Programming ParametersSimulates power line disturbance (PLD) transients such as sags, swells, dropouts, and spikes

Protection Features

ParameterValue
Overvoltage Protection (OVP) RangeProgrammable, limits maximum output voltage
Overcurrent Protection (OCP) RangeProgrammable, limits maximum output current
Overpower Protection (OPP) RangeProgrammable, limits maximum output power
Overtemperature Protection (OTP)Standard shutdown on critical temperature
Remote Sense Maximum Cable Drop5 V

Input Power Requirements

ParameterValue
Input Phase ConfigurationSingle-Phase (1φ)
Input Voltage Range190 V to 250 V AC
Input Frequency Range47 Hz to 63 Hz

Physical & Environmental Specifications

ParameterValue
Rack Height Units (U)4 U
Storage Temperature Range-40 to 85 °C

Compliance & Certifications

ParameterValue
CE Mark ComplianceCompliant

Output

ParameterValue
Crest Factor6
Output Voltage Distortion (15Hz - 100Hz)< 0.5%
Output Voltage Distortion (100Hz - 500Hz)< 1%
Output Voltage Distortion (500Hz - 1000Hz)< 2%

Performance

ParameterValue
Output Voltage Temperature Coefficient0.02% of F.S. per °C
Transient Response Time< 150 µs (for a 100% load step)
Efficiency75% typical

Programming Accuracy

ParameterValue
Programming Voltage Accuracy (AC)0.15% of setting + 0.15% of F.S.
Programming Voltage Accuracy (DC)0.15% of setting + 0.15% of F.S.
Programming Frequency Accuracy0.1%

Measurement

ParameterValue
Measurement Current Accuracy (RMS)0.2% of reading + 0.2% of F.S.
Measurement Power Accuracy (W)0.3% of reading + 0.3% of F.S.
Current RMS Measurement Ranges0 - 2 A / 0 - 16 A
Current RMS Measurement Resolution1 mA (on 2A range) / 10 mA (on 16A range)
Power Measurement Resolution0.1 W (for < 1500 W) / 1 W (for ≥ 1500 W)

Input Power

ParameterValue
Maximum Input Power3200 VA

Programming Specifications

ParameterValue
List Mode Maximum Steps100
Step Mode Maximum Steps100
List Mode Time Setting Resolution0.1 ms

Measurement Specifications

ParameterValue
Peak Current Measurement Accuracy (15Hz - 100Hz)0.4% of reading + 0.4% of F.S.
Peak Current Measurement Accuracy (100Hz - 1kHz)0.8% of reading + 0.8% of F.S.
Power Factor Measurement Range0.000 to 1.000
Crest Factor Measurement Range1.00 to 5.00
Harmonic Voltage Measurement Range1st to 50th order
Harmonic Current Measurement Range1st to 50th order

Synthesized Waveforms

ParameterValue
Arbitrary Waveform Memory Depth1024 points
Inter-Harmonic Frequency Range0.01 Hz to 2400 Hz

Analog Programming Interface

ParameterValue
Analog Programming Input Range0 to 5 V (external AC or DC signal)
Analog Programming Input Impedance10 kΩ

Safety & Isolation

ParameterValue
Isolation Resistance (Output to Chassis)10 MΩ (at 500 VDC)

Technology

Switching AC Power Source

Applications

Power Supply, Grid Simulation, and Harmonic Immunity Testing