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Technical Documentation 

 

    Rev. 01 

 
Power Factor Regulator 

BLR-Q(U)

 

 

Page 18 of 39 

 

2.4.22.4  STEP NOMINAL VALUE 

If STEP RECOGNITION is not active, it is required to do this setting, to get proper function of the relay. 

STEP RECOGNITION is not active for “Fast” steps or if it is blocked (2.4.23.5) or for switch cycles less 1 

sec. 

The size of the capacitors can be programmed manually in kvar.  

The programming can be done for each step individually in kvar. So there is no special sequence necessary. 

A step can be programmed as a capacitor (c) or as an inductor (i). If you plan to use a mixed mode between 

capacitors and inductors, please contact Beluk to get more information. 

At BLR-Q(U)3phase capacitor size has to be programmed for each phase individually.  

A three phase capacitor with 25kvar has to be programmed with 8,3kvar for each phase! 

2.4.22.5  STEP RESET 

Selecting this point all step sizes can be reset individually. 

2.4.23 CONTROL 

General explanations for a better understanding:

 

Cos phi control

 is using “NORMAL” steps. The target of regulation of normal algorithm is calculated by tar-

get cos

ϕ

 and apparent power of fundamental wave. The control deviation is a mean value over the periode 

of SWITCH INTERVAL (adjustable). 

Voltage control 

General working principle of BLR-Q(U) 

The controll target is the voltage adjusted at "NOM. V", which must be the voltage on primary side. In case 

the voltage is droping/rising, the BLR-CM(Q) is switching in/out capacitor steps to increase/decrease the 

voltage again. 

This is be done following to the above charachteristic. 

For better understanding all adjustable points are explained below: 

"COS PHI CAP" is the capacitive border of the charachteristic and will be used togehter with "SET POINT 1". 

As example, when you've adjusted "SET POINT 1 0.96 NOM.V" and "COS PHI CAP c0.90" the regulator will 

use target power factor c0.90 in case the measured voltage is 10560V instead of 11000 ("SET POINT 1 0.96 

NOM.V" = 0.96 * 11kV =10560). 

"COS PHI CENTER" is just the center point of the charachteristic and is used when the voltage does not 

deviate from adjusted "NOM. V". 

"COS PHI IND" is the inductive border of the charachteristic and will be used togehter with "SET POINT 4". 

As example, when you've adjusted "SET POINT 4 1.08 NOM.V" and "COS PHI IND i0.95" the regulator will 

use target power factor i0.95 in case the measured voltage is 11880V instead of 11000 ("SET POINT 4 1.08 

NOM.V" = 1.08 * 11kV =11880V). 

The "SET POINT 2" and "SET POINT 3" working with the same calculation as "SET POINT 4" and "SET 

POINT 1". 

They can be just used to build an area where the voltage is not corrected. 

! 

Содержание BLR-Q(U) I/O

Страница 1: ...ion Rev 01 Power Factor Regulator BLR Q U Beluk GmbH Taubenstrasse 1 D 86956 Schongau Germany Tel 49 0 8861 2332 0 Fax 49 0 8861 2332 22 e mail blr beluk de http www beluk de REFERENCE GUIDE POWER FACTOR REGULATOR BLR Q U ...

Страница 2: ...ace this battery please send the relay to Beluk We will forward this battery to a recycling system Important information If the sign aside appears besides a text passage in the manual the reader is strongly advised to read the corresponding information as it is very important for the device usage It can contain safety advice or other information for the correct handling of the device If the inform...

Страница 3: ...Control outputs 6 1 5 Alarm relay 7 1 6 Digital input 7 1 7 Digital output 7 1 8 User Interface 8 2 MENU BLR Q U 9 2 1 MEAS VALUES 9 2 2 HARMONICS 10 2 3 STEPINFO 10 2 4 Quickstart SETUP 11 2 5 MANUAL 29 2 6 DATALOGGER option DM 30 2 7 DEVICE INFO 30 3 Wiring diagrams BLR Q U 31 3 1 BLR Q U 06 12R 31 3 2 BLR Q U 06 12T 32 3 3 BLR Q U 12RT 33 3 4 BLR Q U I O 34 4 Standard Setting 35 5 Trouble shoot...

Страница 4: ...Technical Documentation Rev 01 Power Factor Regulator BLR Q U Page 4 of 39 6 Technical Data 38 ...

Страница 5: ...t all switching elements are safely switched off in case of under voltage 5 Remove short circuit links of the current transformer before commissioning 1 1 Auxiliary voltage At BLR Q U auxiliary voltage has to be connected separately from measuring voltage The terminals for auxiliary voltage are marked with La Lb and 0 Terminal 0 has to be connected always La and Lb are different tapping points of ...

Страница 6: ...tails of the func tions can be found in the referring chapters 1 4 Control outputs BLR Q U is available with up to 12 outputs Depending on the regulator type the outputs can be relay out puts transistor outputs or a mix between both types The indication of the type can be found on the rear sticker either with the type description or the symbols of the output clamps If you have got the regulator ty...

Страница 7: ...l input for alarm system BLR Q U is equipped with a digital input for AC voltage for alarm system 50 250V AC terminals DI1 1 and DI1 2 Digital input can be active high or active low The function can be programmed in the menu SETUP ALARM DI INPUT 2 4 25 Following codes are possible in voltage control mode 00 control following to the charachteristic 01 centre cos phi 10 cos phi ind 11 cos phi cap Mo...

Страница 8: ...that levels of voltage and current are ok The serious face indicates setting PFC OFF or PFC FREEZE Status columns left and right column are showing the status of the control exits Step 1 status off type NORMAL or FAST Step 2 status off type NORMAL blocked or FIX OFF Step 3 status off type FAULTY Step 4 status on type NORMAL or FAST Step 5 status on type FIX ON Step 6 status off type OFF not availa...

Страница 9: ... Q U ULL voltage phase phase ULN voltage phase neutral THD U THD voltage I current THD I THD current P total active power Q total reactive power S total apparent power F frequency Q control deviation in kvar T temperature at rear side of the device PF power factor Λ P S kW kVA CP cosϕ OPH operation hours of pfc relay APF average power factor T MAX max temperature WPI WPE counter active work import...

Страница 10: ...is used for normal regulation FIX OFF step is permanently switched off OFF step is permanently switched off an blend out FIX ON step is permanently switched in step will be switched off in critical situations like over and undervoltage overtemperature or excessive harmonics FAST step is used for real time algorithm More information can be found in chapter 2 4 22 2 and 2 4 23 FAULTY the step is det...

Страница 11: ... is saved after the first ten switch cycles of each step after a reset of step database This value indicated the original available STEPVALUE This value is used to calculate the percentage of actual stepvalue to original stepvalue This percentage gives very simple information about derating of the capacitor banks 2 3 3 1 When automatic step recognition is not active the percentage is not shown 2 4...

Страница 12: ... ACTIVE The maximum number of switching operations during AI is 10 per exit normally between 2 and 5 AI is taking care about the setting of discharge time for each exit If there is a very long discharge time necessary AI will take a certain time The following messages from AI are possible ALARM AI OK AI is finished completely Please check if all used exits are shown with their number in the displa...

Страница 13: ...TYPE For every single step its function can be defined separatly You can select between the following functions NORMAL step is used for normal regulation algorithm OFF step is permanently switched of an blend out in step indication FIX OFF step is permanently switched off FIX ON step is permanently switched on step is supervised and also switched off in critical situations The step type Fast in on...

Страница 14: ...control The following items appears only when the cos phi control is set to COS Phi U otherwise the points are not visible 2 4 11 COS PHI CAP Defines the capacitive limit for the voltage control 2 4 12 COS PHI U SET POINT 1 Defines target point 1 for the COS PHI U COS PHI P control SET POINT 1 uses the COS PHI CAP when the measured voltage is at the level which is adjusted In fac tory setting this...

Страница 15: ...R The CT FACTOR is the ratio of current transformer e g 1000 5 ratio 200 At BLR Q U 3phase the CT Factor is used for all three current channels For current measuring a CT always have to be used 2 4 21 2 VT FACTOR VT FACTOR is the ratio of the voltage transformer If the regulator is connected directly to the measurement voltage without VT the value 1 has to be used 2 4 21 3 NOMINAL VOLTAGE Function...

Страница 16: ...n is not possible If the current transformer is connected inverted additionally a phase compensation of 180 has to be respected Voltage L1 N L2 N L3 N L1 N L2 N L3 N L1 N L2 N L3 N Current transformerL1 L2 L3 L2 L3 L1 L3 L1 L2 Connection U L N U L N U L N U L N U L N U L N U L N U L N U L N Phase Offset 0 0 0 240 240 240 120 120 120 Voltage L2 L3 L3 L1 L1 L2 L2 L3 L3 L1 L1 L2 L2 L3 L3 L1 L1 L2 Cur...

Страница 17: ...NORMAL step is used for normal regulation algorithm OFF step is permanently switched of an blend out in step indication FIX OFF step is permanently switched off FIX ON step is permanently switched on step is supervised and also switched off in critical situations The step type Fast in only available for BLR Q U with transistor exits Steps which are set Fast only possible for transistor exits are n...

Страница 18: ... of SWITCH INTERVAL adjustable Voltage control General working principle of BLR Q U The controll target is the voltage adjusted at NOM V which must be the voltage on primary side In case the voltage is droping rising the BLR CM Q is switching in out capacitor steps to increase decrease the voltage again This is be done following to the above charachteristic For better understanding all adjustable ...

Страница 19: ...or BLR Q U Page 19 of 40 Between the adjusted SET POINTS the controll target is calculated dynamically as shown in the below drawing This means finally that the TARGET POINTS are just fixing the charachteristic the remaining tasks are done automatically ...

Страница 20: ...nsitivity is the switching threshold for switching on or switching off the capacitors in percent The range of the sensitivity can be between 55 and 100 factory setting is 60 Due to this the in following explanation 60 is used Sensitivity is used for two checks 1 The controller is using sensitivity to check if a switching operation is necessary or if it s possible If the demand for compensation is ...

Страница 21: ...switch interval Step recognition is automatically set OFF when switch interval is off In regulation mode LIFO minimum switching interval is 1 sec longer as the longest discharging time In HV version the minimum switching time delay is 8 7 sec 2 4 23 3 SWITCH INTERVAL STEP EXCHANGE For step exchange a separate switch interval is used This is the delay time between switching off an active step and s...

Страница 22: ...en they are faulty Stepsizes which are programmed manually will be overwritten by step recognition 2 4 23 6 SWITCH CYCLES BALANCING Pushing key is changing between ON and OFF Balancing of switch cycles of capacitors with similar sizes produces an equal attrition of the contactors and capacitors 2 4 23 7 SWITCH CYCLES BALANCING Capacitors within this tolerance band are capacitors with similar sizes...

Страница 23: ...target the setting of switch interval is only valid for the first switching operation and the following steps are connected in short intervals 2 4 23 11 Q OFFSET OFFSET of reactive power in kvar This feature allows compensating a permanent reactive load which can not be measured e g a transformer The offset of reactive power affects the readings of the following measuring values current reactive p...

Страница 24: ...TER Defines the center point of the charachteristic given by the adjusted SET POINT s 1 4 2 4 23 18 COS PHI U SET POINT 2 Defines an further point on the charachteristic build between SET POINT 1 and SET POINT 4 This is also adjusted by a voltage Level 2 4 23 19 COS PHI U SET POINT 3 Defines an further point on the charachteristic build between SET POINT 1 and SET POINT 4 This is also adjusted by ...

Страница 25: ...os φ DI M DO Display of power factor and status of inputs and outputs inactive active Cos φ Q Display of power factor and control deviation Cos φ valid Target cos φ 1 or 2 Showing of power factor and of the active target power factor e g tariff switching with digital input 2 4 24 2 Contrast The contrast of the LCD display can be adjusted by pushing the keys After leaving this submenu the setting i...

Страница 26: ... adjusted from 1s to 36000s Harmonics U Trigger THD U exceeds the adjusted limit between 1 and 99 9 Harmonics I Trigger THD I exceeds the adjusted limit between 1 and 99 9 Overload P Trigger amount of P exceeds the adjustable limit between 1kW and 99 9MW Overload Q Trigger amount of Q exceeds the adjustable limit between 1kvar and 99 9Mvar P export Trigger alarm will be triggered as soon as kW exp...

Страница 27: ...reaking capacity 250V AC 5A DO relay digital output with N O contact The contact can be set to N O or N C function Max fuse 6A breaking capacity 250V AC 5A Display Shows Alarm in Display Control freeze All steps are frozen control is stopped Control off All steps are switched off control is stopped Cos phi 2 Switch to a second target cosϕ M M relay DO DO relay D Display CP target cos 2 O control o...

Страница 28: ...datalogger To use datalogger some settings are required These settings are date time storage interval synchronisation to digital input and trigger of digital input 2 4 27 1 Date and time Format of date dd mm yy Format of time hh mm seconds are running in a separate line 2 4 27 2 STORAGE INTERVAL The storage interval can be set from 1 to 720 minutes A setting of 0 stops datalogging of measuring val...

Страница 29: ... DELETE Deletes all saved values in datalogger 2 5 MANUAL To enter in manual mode please select manual in main menue and push for 3 seconds The automatic control is stopped and the exits can be switched manually By the means of the key the referring step can be selected Changing the switching state is possible by pushing the key Manual switching is only possible when measurement voltage is in allo...

Страница 30: ... Logging of measurings BLR Q U can log upto 3072 sets of measurings with date and time The interval can be set from 1 minute to 720 minutes 0 stop logging Alternatively there can be use the digital input Fehler Verweisquelle konn te nicht gefunden werden of data logger to synchronize the log interval to other applications It is working as ring buffer so the oldest information is overwritten To dow...

Страница 31: ...tation Rev 01 Power Factor Regulator BLR Q U Page 31 of 39 3 Wiring diagrams BLR Q U 3 1 BLR Q U 06 12R B LR CM K1 K1 B LR CM K1 L1 L2 L3 L1 L2 L3 N PE N PE Einspeisung S upply Einspeisung S upply Last Load Last Load K1 ...

Страница 32: ...actor Regulator BLR Q U Page 32 of 39 3 2 BLR Q U 06 12T B LR CM B LR CM T riggereingang T riggerinput BEL T SXX T riggereingang T riggerinput BEL T SXX L1 L2 L3 L1 L2 L3 N PE N PE Einspeisung S upply Einspeisung S upply Last Load Last Load ...

Страница 33: ... Regulator BLR Q U Page 33 of 39 3 3 BLR Q U 12RT B LR CM B LR CM T riggereingang T riggerinput BEL T SXX T riggereingang T riggerinput BEL T SXX L1 L2 L3 L1 L2 L3 N PE N PE Einspeisung S upply Einspeisung S upply Last Load Last Load K1 K1 K1 K1 ...

Страница 34: ...Technical Documentation Rev 01 Power Factor Regulator BLR Q U Page 34 of 39 3 4 BLR Q U I O ...

Страница 35: ...yes no Switch cycle balancing 10 1 15 Step exchange yes yes no Control sensitivity 60 55 100 Control Auto Auto LIFO progressive combi filter Q Offset 0 kvar 3200 kvar I limit freeze steps no yes no Q cap steps turn off no yes no Fast meas delay 50 periods 0 900 periods Fast max step value 0 kvar 0 9999 9 kvar Fast meas mean 0 periods 0 900 periods Control alarm M D disabled M DO D CP O F No curren...

Страница 36: ... disabled M DO D CP O F Limit temperature 2 70 C temp2 70 C T temp hysteresis Temp2 1 0 C 0 5 C 9 9 C DI Input alarm disabled disabled M DO D CP O F DI trigger high high low Frequency alarm disabled disabled M DO D CP O F Limit low frequency 45 0Hz 45 0Hz limit high 0 1Hz Limit high frequency 65 0Hz limit low 0 1Hz 65 0Hz Modbus baudrate 9600 1200 38400 Modbus parity 8E1 8E1 8 1 8N2 Modbus address...

Страница 37: ...NSATION in menu EXTENDED if necessary rectify correct setting of Q offset power factor doesn t change after switch ing on a step step is switched off again CT mounted in wrong position check mounting position referring circuit diagram current of load and capacitors have to be meas ured if necessary rectify alarm overcurrent current higher than allowed check CT ratio probably replace by suitable tr...

Страница 38: ...for synchronization of data logger Digital input DI1 1 DI1 2 50 250V AC programmable Digital output N O voltfree programmable max fuse 6A breaking capacity 250V AC 5A Data logger optional 2MB Interface optional RS485 Modbus RTU protocol Slave Ambient temperature operation 0 C 70 C storage 20 C 85 C Humidity 0 95 without moisture condensation Overvoltage class II pollution degree 3 DIN VDE 0110 Tei...

Страница 39: ...Technical Documentation Rev 01 Power Factor Regulator BLR Q U Page 39 of 39 Beluk GmbH Taubenstrasse 1 86956 Schongau Germany Phone 49 8861 23320 Fax 49 8861 23322 blr beluk de http www beluk de ...

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