Model 
Model Name 
Remarks 
ES4152 
Reference Impedance Network 
Single phase, 20 A rms 
ES4153 
Reference Impedance Network 
Three/Singlephase, 20 A rms (for each phase) 
As517A/
As537 
Voltage Dips Simulator 
Requires ES0406D 


Reference Impedance Network 




For IEC 6100033/JIS C 6100032
Measuring Harmonic Current and Flicker
This is a circuit network of resistance and inductance to make the output impedance of AC power source come near the impedance of actual commercial line.
Use this in combination with Programmable AC Power Source ES series in harmonic current measurement or flicker test.


The impedance value is guaranteed at the value given by the combination of ES series and this unit.


The errors caused by impedance switching relays or current detecting resistor are corrected with feedback.


Equipped with voltage/current monitoring terminal for connecting analyzer


Model 
Description 
ES4152 
Single phase 2 wires 
ES4153 
Single phase 2 wires /3 wires, Three phase 3 wires/ 4 wires 


Voltage Dips Simulator 



For IEC 61000411 (2004)
Voltage Dips, Short interruptions, and Voltage Variations


When combining ES series with As517A / As537 Voltage Dips Simulator, ES0406D Immunity Software can be used to test phase currents up to 16 A according to the IEC 61000411 (2004) standard singlephase or threephase.
As517A / As537 Voltage Dips Simulator is using highspeed semiconductor switches to achieve rapid voltage switching.


For singlephase test, one As517A, ES0406D software , and ES series AC power source system are required. 

For threephase tests (phase voltage and linetoline voltage tests), two As517A, one As537, ES0406D software, and ES series AC power source system are required. 

Model 
Description 
As517A 
Voltage Dips Simulator 
As537 
Voltage Dips Simulator for threephase tests (phase voltage and linetoline voltage tests) 


*For IEC 61000434 (for equipment with input current more than 16 A per phase), custom voltage dip simulators are required. Please contact us for further details. 
