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RQ  B  SERIES  REACTIVE  POWER  CONTROL  RELAY

RQ B Series reactive power control relays are designed to operate for the reactive power  compensation of LV distribution systems .

The logic to operate the steps is completely different from other relays. The logic is designed so that the compensation is achieved 
very quickly with most reliable operation.

                          

                                                             Figure 1

Basic Properties:

 * Automatic or manual setting of  

c/k

 

  *  Set

 C o s ø  is  adj u s t a b l e  b et w e e n  0,90  a n d  0,99

   

 * Re-connection or Re-isolation periods are adjustable

        independently
     

  * Selection of number of steps,

     
* 6 different sequence logic,
     

 * Reactive / Active power ratio is displayed on the screen,

 

 * Under voltage, over voltage and     

   compensation failed  alarms,
 

 * Easy programming,

 * Harmonic free operation,

     

 * Easy installation with socket mount

  

 * Automatic polarity sensors,

 

SETTINGS

Relay should be set properly according to the properties of the systems. In order to achieve best relay operation, all settings should 
be done properly and the oeration of all signal leds must be read carefully. The front view of the relay is at Figure 1.

1-C/k Setting:

 

Press Set button until “c/k” led is on .

Set 

c/k

 value to the desired value using up or down buttons

Pr e s s   S e t

 button again and c/k value will be stored in the memory and Set 

 C o s ø

 led will be on.

set

set

Summary of Contents for RQ B Series

Page 1: ...number of steps 6 different sequence logic Reactive Active power ratio is displayed on the screen Under voltage over voltage and compensation failed alarms Easy programming Harmonic free operation Eas...

Page 2: ...0 99 with 0 01 steps 3 Ton re connect delay setting Press Set button until T on led is on Adjust T on to the desired value using up and down buttons Press Set button again T on will be stored in the m...

Page 3: ...ll operate automatically within 10 seconds as programmed Relay has 6 different sequence logic a 1 1 1 1 1 1 system displayed as 1 1 1 b 1 2 2 2 2 2 system displayed as 1 2 2 c 1 2 3 3 3 3 system displ...

Page 4: ...ed is on means the load is inductive Cos led is on displaying the present cos power factor Q P led is on displaying the present ratio of reactive power to active power For example the display reading...

Page 5: ...current transformer from the same phase of the network If the supply voltage and the current transformer are at different phases the polarity adjustment will not operate and the relay will not functi...

Page 6: ...teps are disconnected for no voltage more than 50 msec c k set 0 03 1 15 or automatic c k set Set Cos 0 90 0 99 Sequences 1 1 1 1 1 2 2 2 1 2 3 3 1 2 4 4 1 2 3 6 6 1 2 4 8 8 Contacts Same as number of...

Page 7: ...03 0 06 0 12 0 18 0 25 0 31 0 37 0 5 0 62 0 75 500 5 0 05 0 1 0 15 0 2 0 25 0 3 0 4 0 5 0 6 1 600 5 0 04 0 08 0 12 16 0 2 0 25 0 33 0 41 0 5 0 83 800 5 0 03 0 06 0 09 0 12 0 15 0 18 0 25 0 31 0 37 0...

Page 8: ...Q 1 1 2 B R e a k tiv e P o w e r C o n tro l R e la y set k C 144 70 90 138 138 Panel window with 144 v v v v v v v v v v v v GEPA K o m p a n z a s y o n c H e d e f c o s T K a d s a y s S ra la m...

Page 9: ...T K a d s a y s S ra la m a A G a y a r M a n u e l o n T o ff N o rm a l C C a p In d 1 2 3 4 5 6 7 8 9 10 11 12 Q P c o s R Q 1 1 2B R e a c tiv e P o w e r C o n tro l R e la y set k C R Q B S E R...

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