AC Power Conditioners. Design and Application by James Clark

By James Clark

AC strength Conditioners: layout and purposes presents a few perception into a few of the forms of strength line disturbances, difficulties that ensue day-by-day, and their corresponding suggestions. This e-book is geared up into 4 elements encompassing 14 chapters; each one half offers with a distinct type of strength protection.

Part I introduces a number of the forms of power-line difficulties encountered that may be damaging to digital apparatus or the information it comprises. components II and III are dedicated to noise and surge relief, in addition to strength line legislation. those elements describe using thyristor regulator, constant-voltage transformer, and linear and switching power-line regulators. half IV makes a speciality of blackout defense, with specific emphasis at the use of switching converter, thermal administration, filters, and inverter regulate circuitry.

This e-book is meant essentially to scholars and researchers.

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2 3 . C o m m o n - m o d e transients o f greater t h a n 2 0 0 0 V can b e e x p e c t e d o n a n y p o w e r line. 3 V o n t h e secondary. This degree o f isolation m a y n o t b e a d e q u a t e f o r m a n y i n s t a l l a t i o n s . I n s o m e c a s e s it is d e s i r a b l e t o a c h i e v e 1 0 0 d B or m o r e input to output isolation. T h e s h i e l d i n g m e t h o d s h o w n i n F i g . 4 - 5 is c a p a b l e o f a c h i e v i n g c o m m o n m o d e isolation exceeding 1 4 0 d B , or 1 0 , 0 0 0 , 0 0 0 : 1 .

2 9 Ω o f wire resistance in the primary winding. There will b e little difference i n w i n d i n g r e s i s t a n c e o n t h e s e c o n d a r y . 17) above, N s s a n d t h e desired o u t p u t voltage for E o ,u t c a n n o w b e calculated. T h e result c a n b e r o u n d e d to 1 1 9 turns. Using this n u m b e r in the e q u a t i o n for E out as a c h e c k , w i l l y i e l d 1 2 0 . 6 V o u t a t full l o a d , f o r 1 2 0 - V i n p u t . It is n o w e s t a b l i s h e d t h a t 1 1 6 t u r n s o n t h e p r i m a r y a n d 1 1 9 t u r n s o n t h e s e c o n d a r y will b e n e c e s s a r y for this design.

PART III Power Line Regulation T h e earlier chapters o f this b o o k dealt primarily w i t h t h e issue o f c l e a n i n g up the AC p o w e r line a n d preventing potentially d a m a g i n g noise a n d impulses from getting into equipment. This part will deal with m e t h o d s o f regulating t h e p o w e r - l i n e v o l t a g e t o k e e p it w i t h i n a c c e p t a b l e l i m i t s . S o m e o f t h e s o l u ­ tions presented h e r e will include m a n y o f the s a m e noise a n d surge attenu­ ation characteristics already presented, but, for obvious reasons, will b e m o r e expensive to i m p l e m e n t due to the addition o f line regulation capability.

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