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LEROY-SOMER

Installation and maintenance

4291  en-10.2008/a

R220

A.V.R.

3 - INSTALLATION -

 

COMMISSIONING

3.1  - Electrical checks on the AVR

-  Check  that  all  connections  have  been 
made  properly  as  shown  in  the  attached 
wiring diagram.

-  Check  that  the  ST3  frequency  selection 

jumper is on the correct frequency setting.

-  Check  whether  the  ST4  jumper  or  the 
remóte  adjustment  potentiometer  have 
been connected.

3.2  - Settings

A

The  machine  is  tested  and  set  at  the 
factory.  When  firs t  used  with  no  load, 

make sure that the drive speed is correct 

and  stable  (see  the  nameplate).  After 
operational  testing,  replace  all  access 
panels or covers.

The  only  possible  adjustments  to  the 

machine should be made on the AVR.

3.2.1  - R 220 setting (shunt system)

Initial potentiometer settings

-Plpotentiometer(AVRvoltageadjustment): 

fully anti-clockwise.

- Remóte voltage adjustment potentiometer: 
centre position.

Run the alternator at its rated  speed.  If the 

voltage  does  not  increase,  the  magnetic 
circuit should be remagnetized (see section 
3.3).

-  Turn  the  AVR  voltage  adjustment 
potentiometer  P1  slowly  until  the  output 

voltage rated valué is obtained.

- Adjust the stability setting using P2. 

Clockwise: increase the rapidity. 

Anti-clockwise: decrease the rapidity.

3.2.2  - Special type of use 

(  W A R N IN G   )

Excitation circuit E+,  E- must not be left 

open when the machine is running : AVR 
damage w ill occur.

3.2.1.1  - R220 field weakening (SHUNT)

<rfc>—

o

r

VOLT  P0T1K 

110  0 v   E +   E -

*  i i [ i  

E 3 H in n

The exciter is switched off by disconnecting 
the AVR power supply (1  wire - 0 or 110V). 
Contact rating  : 16A - 250V alt.

3.2.1.2 - R220 field forcing

(400V-10A)

Diode

&

Battery must be isolated from  the earth.

&

Exciter field may be at line potential.

Summary of Contents for R220 VSG+CCM

Page 1: ...4291 en 10 2008 a R220 A V R Installation and maintenance ...

Page 2: ...bol for an operation capable of damaging or destroying the machine or surround ing equipment Ourtechnical support servicewiIIbe pleased to provide any additional infor mation you may require The various operations described in this manual are accompanied by recommen da tions or symbols to alert the user to potential risks of accidents It is vital that you unders tand and take notice ofthe followin...

Page 3: ... 6 4 SPARE PARTS 7 4 1 Designation 7 4 2 Technical support Service 7 All such operations performed on the A V R should be undertaken by personnel trained in the commissioning servicing and maintenance of electrical and mechanical components Copyright 2005 MOTEURS LEROY SOMER This document is the property o f MOTEURS LEROY SOMER It may not be reproduced in any form without prior authorization All b...

Page 4: ...supply sensing range 85 to 139 V 50 60 Hz Rapid response time 500 ms for a transient voltage variation amplitude of 20 Voltage setting P1 Stability setting P2 Power supply protected by 8 Atuse slow blow action tolerates 10 Afor 10 s The fuse is impregnated in the resin therefore it can not be replaced Frequency 50 Hz with ST3 jumper 60 Hz without ST3 jumper 2 2 R220AVR option Potentiometer for rem...

Page 5: ...al potentiometer settings Plpotentiometer AVRvoltageadjustment fully anti clockwise Remótevoltage adjustment potentiometer centre position Run the alternator at its rated speed If the voltage does not increase the magnetic circuit should be remagnetized see section 3 3 Turn the AVR voltage adjustment potentiometer P1 slowly until the output voltage rated valué is obtained Adjust the stability sett...

Page 6: ...tance Speed too low Increase the drive speed Do not touch the AVR voltage pot P2 before running at the correct speed Voltage too high Adjust AVR voltage potentiometer Adjustment ineffective Faulty AVR Voltage oscillations Adjust AVR stability potentiometer Check the speed possibility of cyclic irregularity Loose connections FaultyAVR Speed too low when on load or U F bend set too high Voltage corr...

Page 7: ...he complete machine type its serial number and the information indicated on the nameplate Part numbers should be identified from the exploded views and their description in the parts list Our extensive network of service stations can dispatch the necessary parts without delay To ensure correct operation and the safety of our alternators we recommend the use of original manufacture spare parts In t...

Page 8: ...Leroy Somer Leroy Somer Electro Technique Fuzhou Co Ltd NO l Emerson Road Gaishan Cangshan district Fuzhou Fujian P R China 350026 Tel 86 591 88000922 Fax 86 591 83567185 ...

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