Main%Dump%Resistor%for%Capacitor%Banks% Discharge% …

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Main Dump Resistor for Capacitor Banks Discharge Steve Chappa, Hogan Nguyen March 2 nd 2017 We Opened Up the Capacitor Bank Units for PS1, PS2, PS3 This is to confirm the Dump Resistor, according to BNL Drawings D19E71 and D19E78 The Dump Resistor for Cap Bank Unit for PS1 is Confirmed ! The Dump Resistor for Cap Bank Units for PS2 and PS3 appears to be by passed. This is may be a simple misconnec@on.

Transcript of Main%Dump%Resistor%for%Capacitor%Banks% Discharge% …

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Main  Dump  Resistor  for  Capacitor  Banks  Discharge  

 Steve  Chappa,  Hogan  Nguyen  

March  2nd  2017  

We  Opened  Up  the  Capacitor  Bank  Units  for  PS1,  PS2,  PS3    This  is  to  confirm  the  Dump  Resistor,  according  to  BNL  Drawings  D19-­‐E71  and  D19-­‐E78    The  Dump  Resistor  for  Cap  Bank  Unit  for  PS1    is    Confirmed  !      The  Dump  Resistor  for  Cap  Bank  Units  for  PS2    and  PS3    appears  to  be  by  passed.  This  is  may  be  a  simple  misconnec@on.      

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R5  =  10  KOhm  Main  Dump  Resistor.  AcUvated  when  power  is  OFF  

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PorUon  of  D19-­‐E78  

Connects  To  R5  (10  K  Ohm  Dump  Resistor)  

+  HV  

SCR  Thyristor  to    charge  the  Blumlein  Kilovac    

Relay  

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Capacitor  Bank  Unit  a\ached  to  PS1      

R5  =  10  KOhm    Power  Resistor  

Posi3ve  Terminal  of    Capacitor  

Nega3ve  Terminal    of  Capacitor  

This  AGREES  with  drawing  BNL  E821  drawings    d19-­‐71  and  d19-­‐78    

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10  KOhm  Power  Resistor  

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Capacitor  Bank  Unit  a\ached  to  PS3      

R5  =  10  KOhm    Power  Resistor  

Posi3ve  Terminal  of    Capacitor  

Posi3ve  Terminal    of  Capacitor  

This  DOES  NOT  agree  with  drawing  BNL  E821  drawings    d19-­‐71  and  d19-­‐78.  10  KOhm  has  been  bypassed  since  both  ends  of  the  resistor  are  connected  to  +HV