Real time digital simulation technology is widely used in the research of power system. ONLLY-SA series amplifier is a kind of high performance linear power amplifier which is specially developed for power system simulation.
ONLLY-SA series amplifier with excellent performance, good linearity, fast response, high precision, good electromagnetic compatibility, improves the linear power amplifier with high power, high output current accuracy, and can adapt to a variety of capacitive and inductive load.
ONLLY-SA series amplifier operation is simple and convenient, no complicated wiring, the interface is simple and clear, at a glance, greatly facilitate the operation of the test.
Model description
Specification: ONLLY-SA6640
SA for model
6 to 6 voltage, voltage channels can be 6, 3, 0
6 to the current 6, the current number is 6, 3, 2 may, 1, 0
40 for each current range, possible number, 60, 40, 20, 10, 00; (Note: 60->60A, 40->40A, 20->200A, 10->100A)
Customers can choose according to the above description with the needs of the project.

Take SA6640 as an example, see the relevant technical parameters for other models:
Current output
(1) rated output current: effective value of 6 phase 5A sine wave
(2) maximum output current: 6 phase 40A sine wave RMS
(3) gain characteristics (output current versus input signal): 5.657A/V
(4) current amplifier for direct coupled amplifier, frequency range: DC-5kHz + 1dB
(5) the input is a high anti-jamming differential circuit, the input impedance of >10k
(6) the nonlinear error between input signal and output current is less than 0.2% (0.2A-40A)
(7) the output current of the current amplifier should be consistent with the phase of the input signal, and the 50Hz input and output delay is <20 mu S
(8) the total harmonic distortion rate of output current is less than 0.2%
(9) the step response of current amplifier is less than 20 S
(10) the maximum output power of the current amplifier 450VA/ phase (30A sine wave RMS output)
(11) current amplifier output current load change rate is less than 0.2% (0-2, output power 5A)
Voltage output
(1) rated output voltage: RMS of phase 6 57.735V sine wave
(2) the maximum output voltage: the RMS value of the 6 phase 125V sine wave
(3) gain characteristics (the relationship between output voltage and input voltage): 18.385V/V
(4) voltage amplifier is a direct coupled amplifier, frequency range: DC-5KHz + 1dB
(5) the input is a high anti-jamming differential circuit, the input impedance of >10k
(6) the nonlinear error between the input signal and the output voltage is less than 0.2% (2V-120V output voltage)
(7) the total harmonic distortion rate of voltage amplifier output voltage is less than 0.2% (2V-120V output voltage)
(8) the output voltage of the voltage amplifier should be consistent with the phase of the input signal, and the input and output delay of the 50Hz is <20 S
(9) the step response of the voltage amplifier is less than 20 S
(10) the maximum output power of the voltage amplifier is greater than 60VA
(11) voltage amplifier load change rate is less than 0.2% (0-30 VA output power, output 57.7V)
Phase accuracy
(1) the phase error between the current and the voltage of the four channels is not greater than + + S 50Hz = 0.1
(2) the phase error between voltage and current is not greater than + 10 S 50Hz < 0.1
Special function
(1) the amplifier is suspended or abnormal, and the output terminal of the amplifier can be connected to the simulation system;
(2) the simulation system can remotely control the start or pause of the amplifier.
Structure and arrangement
(1) 10 inch high-definition touch screen, you can display the voltage, the current output of the true RMS value, phase, frequency, waveform;
(2) a 10 inch high definition touch screen, which can control the suspension of the amplifier, light and heavy, can display the abnormal state of the amplifier;
(3) the voltage and current in both the front and rear panels are output;
(1) 10 inch high-definition touch screen, you can display the voltage, the current output of the true RMS value, phase, frequency, waveform;
(2) a 10 inch high definition touch screen, which can control the suspension of the amplifier, light and heavy, can display the abnormal state of the amplifier;
(3) the voltage and current in both the front and rear panels are output;
(4) the input signal terminal is on the back panel;
(5) the size of the machine: 4U standard chassis, 177 x 445 x 455mm (H * W * D);
(6) the weight of the whole machine: not more than 18.5kg.