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EA16 

1.  SPECIFICATION 

Sensing Input 

 

 

Voltage 

170 ~ 510 VAC, Single Phase 2 wires 

 

Voltage is DIP Switch selectable 

 

Frequency 

50/60 Hz, DIP Switch selectable 

Power Input 

 

Voltage 

60 ~ 300 VAC, Single Phase 2 wires 

Output 

 

Voltage 

Max. 90 VDC @ 240 VAC input 

 

Current 

Continuous 16A 

 

Intermittent 20A for 10 sec 

 

Resistance 

Min. 5 ohm 

Voltage Regulation 

 

< ± 0.5% ( with 4% engine governing ) 

Voltage Build-up 

 

Residual voltage at AVR terminal > 5 VAC 

Thermal Drift 

 

0.03% per 

°

C change in AVR ambient 

Load Current Compensation 

 

1A or 5A Max. 7% @ PF0.5 DIP Switch Selectable 

Analogue Voltage Input 

 

Max. ±5VDC. ±10% @ ±3VDC 

Over Excitation Protection 

 

Max Output DCV 95%    20sec 

External Volts Adjustment 

 

± 5% with 2K ohm 1 watt trimmer 

Unit Power Dissipation 

 

Max. 10 watt 

Under Frequency Protection ( Factory Setting ) 

 

50/60 Hz DIP SW selectable 

Soft Start Ramp Time 

 

2 sec. 

Dimensions 

 

156mm L * 106mm W * 43mm H 

Weight 

 

450g ± 2% 

 

The  EA16  AVR  is  an  update  of  the  EA15A  AVR.  It  is  similar  to  the  original  EA15A  in  power  and  voltage 
sensing capabilities but with new enhanced paralleling functions; the user can now select the CT inputs either 
1 & 5 Amp or use new A1 & A2 analogue signal inputs terminals for use with PLC paralleling controls. It has 
new  over-voltage  excitation  safety  circuits  to  prevent  damage  caused  by  the  accidental  detachment  of  the 
sensing wires or irregularities on the generator’s excitation circuits. 

 

 

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ATTENTION 

1. AVR  can  be  mounted  directly  on  the  engine, 

genset, switchgear, control panel, or any position 
that  will  not  affects  operation.  For  dimension 
reference, please see Figure 1. 

2.  All  voltage  readings  are  to  be  taken  with  an 

average-reading 

voltmeter 

Meggers 

and 

high-potential  test  equipment  must  not  be  used. 
Use of such equipment could damage the AVR. 

3.  Secure all wiring connection. Do not install AVR at a 

place  with  high  vibrations  to  prevent  loose 
connections. For safety do not touch the heat sink 
while in operation. 

4.  Fuse specification : 16A / 250V slow blow type. 

5.  Terminal

"Fast-On" terminals 6.35mm (1/4 inch) & 

With 4mm crimping terminal. 

Figure 1

 

Outline Drawing 

UNIT : mm 

Summary of Contents for EA16

Page 1: ...sal 16Amp Self Excited Automatic Voltage Regulator for use in 220 380 440 480 VAC brushless generators with paralleling compatibility Headquarters No 3 Lane 201 Chien Fu ST Chyan Jenn Dist Kaohsiung TAIWAN Tel 886 7 8121771 Fax 886 7 8121775 URL http www kutai com tw ...

Page 2: ...is an update of the EA15A AVR It is similar to the original EA15A in power and voltage sensing capabilities but with new enhanced paralleling functions the user can now select the CT inputs either 1 5 Amp or use new A1 A2 analogue signal inputs terminals for use with PLC paralleling controls It has new over voltage excitation safety circuits to prevent damage caused by the accidental detachment of...

Page 3: ... the manufacture of the Paralleling control PLC 2 DROOP Select switch K or L pending on the secondary current of the CT that you are using Voltage droop works when the CT and the AVR senses that the output of the generator voltage and current waveforms are out of synch and the AVR droops the output voltage of the generator to correct it 3 STAB If the generator output voltage oscillate adjusting th...

Page 4: ...he 60 C 140 F DANGER When the AVR is working never touch or ground the heat sink on the AVR The AVR heat sink is an electrically live terminal A warning sticker is in place on top of the heat sink 5 FIELD FLASHING When operating this AVR for the first time the polarity of the residual magnetism may be reversed or too weak to achieve the necessary build up on the regulator If reversing the field co...

Page 5: ...ection P1 VR1 EXT VR Field GEN VR2 A1 A2 VS1 F P2 F K VS2 L R T N S Field EXT VR VR1 P1 VR2 A2 A1 VS1 F P2 F L VS2 K GEN T N S R EA16A EA16A GEN EXT VR K VR1 VR2 A1 F P2 P1 VS1 F VS2 A2 L T N R S EA16A Field Figure 2 Paralleling Connection Figure 4 380 480V Connection Field EXT VR EA16 VR2 VR1 A2 A1 F VS1 P1 P2 F L VS2 K GEN T N S R Aux Winding 60 300v Figure 5 Auxiliary Winding ...

Page 6: ... procedure carefully and adjust again U F protection activated Increase generator speed Out voltage low U F activated Incorrect voltage selection Read user s manual to select correct voltage Poor adjustment is made Read start procedure carefully and adjust again Out voltage high Incorrect voltage selection Read user s manual to select correct voltage Poor adjustment is made Read start procedure ca...

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