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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.
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
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
Figure 1
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Summary of Contents for GEPA RQ B Series
- Page 1 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.
- Page 2 In case no additional buttons are pressed , the relay will operate automatically within 10 seconds as programmed.. C/k is adjustable between 0,03 and 1,15 with 0,01 steps If “ot o ” is displayed on the screen, c/k was set automatically and the relay will set c/k value by itself automatically. 2-Seting Cosø...
- Page 3 Press Set button until “ Steps” led is on Adjust the number of Steps to the desired value using up and down buttons. Pr e s s S et bu tton again, Steps will be stored in the memory and “Sequencel”...
- Page 4 Press Set button until “ Manuel” led is on. Using up and down buttons, you can adjust manual mode “001” or “000” on the display for automatic operation. Pr e s s S e t bu tton again, manual / automatic selection will be stored in the memory and relay will start functioning. At manual mode, “M a n u e l ”...
- Page 5 But there’s internal protection so that no step is re-connected before 45-50 seconds since this period is required for the capacitor unit to discharge. Otherwirse there’ll be over voltages on the capacitor unit which wiill cause damages. In the same logic, no step is connected before 45-50 seconds if the supply voltage (system voltage) is off and on again. In the switching logic, the amount of the reactive power required as well as the rotating system logic are also important .
- Page 6 Supply Voltage : 220V AC ± %15 50 Hz Rated Current : ../5A Power consumption : 5W Current circuit consumption : 0,2VA I=5A’de Over current Withstand : Continuous 10A, 50A for 1 sec. Over voltage Protection : 250-299V adjustable. : 3 sec. delay Under Voltage Protection : 160V...
- Page 7 19 18 15 14 13 12 Figure 2 Capacitor Size (kVAr) Ratio 30/5 0,16 0,41 0,83 50/5 0,25 75/5 0,06 0,16 0,33 0,66 100/5 0,05 0,12 0,25 0,75 150/5 0,03 0,08 0,16 0,33 0,66 0,83 200/5 0,06 0,13 0,25 0,37 0,62 0,75 250/5...
- Page 8 M a n u e l Q /P (% ) c o s ø GEPA s et R Q -1 1 2 B R e a k tiv e P o w e r C o n t r o l R e la y Panel window with R Q B S E R IE S R E A C T Ý...
- Page 9 Q /P (% ) c o s ø M a n u e l GEPA s et R Q -1 1 2 B R e a c tiv e P o w e r C o n tr o l R e la y...
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