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BPC CXPLUSR Operating Instructions Manual

Power factor control relay
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Operating Instructions - General Instructions inserted in each relay box
These instructions apply from Ser. No. 1136054 Software 2.00 - Rev 6 issue date 29.6.2012
1.3 - Earthing the relay
1.4 - Connecting the relay
1.5 - Removing the short circuit link on K-L
1.6.1 - Wiring diagram - Contactors
2.1 Lockout time 75 secs
Setting the nominal system Voltage L-L., Un
Setting the CT ratio - Ct
Setting the VT ratio - Pt
Selecting Automatic Self Commissioning Ai
Setting the target power factor - CPI
Setting Step switch time - St
Selecting the type of switching for each individual step OUt
Power Factor Control Relay
CXPLUSR (CONTACTOR SWITCHING)
CXPLUST (THYRISTOR SWITCHING)
Contents
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Summary of Contents for BPC CXPLUSR

  • Page 1: Table Of Contents

    Operating Instructions – General Instructions inserted in each relay box Power Factor Control Relay CXPLUSR (CONTACTOR SWITCHING) CXPLUST (THYRISTOR SWITCHING) These instructions apply from Ser. No. 1136054 Software 2.00 – Rev 6 issue date 29.6.2012 Contents 1.0 CONNECTION TO SUPPLY Page 2 1.2 - Current Transformer notes...

  • Page 2: Connection To Supply

    1.0 CONNECTION TO SUPPLY 1.1 Installation must only be carried out by suitably qualified personnel. All local safety regulations must of course be followed including IEE wiring regulations 17th edition if installation is in the UK. The power supply to the relay is taken from the phase – phase 50 or 60hz voltage and connected via a fuse 6A max to Um1 and Um2.

  • Page 3: Wiring Diagrams

    1.6 Wiring diagram 1.6.1 (CXPLUS..R – Contactor switching) Page 3 of 11...

  • Page 4: Wiring Diagram - Thyristors

    1.6.2 (CXPLUS..T – Thyristor switching) 2.0 ENERGISING THE RELAY 2.1 The CXPLUS has a default lockout time of 75 seconds and will start counting down, after energising. This to ensure that capacitors are not switched in immediately after power loss and an emergency generator start up - for example.

  • Page 5: Scroll Through Menu - What Do The Symbols Mean

    The Scroll through Menu – What do the Symbols mean? To see these readings, when you are in the main display and the Cosphi power factor is displayed ., press enter ► and you see U ., now press▼ to scroll through the other readings phase –...

  • Page 6: The Quick Start Menu 100 To Set Ct And Vt Ratios

    3.0 THE QUICK START MENU 100 TO SET CT AND VT RATIOS The 100 Menu allows you to set the CT ratio- voltage measurement values, target power factor setting., and switching time per step. This is the menu the Commissioning Engineer can use on site. Other settings in the expert menus can be made with the help of a qualified Engineer or Technician.

  • Page 7: Selecting Auto-Off-Hold For All The Steps

    ▼ CPI – or Target Power factor setting Set to the required target PF. Note if you press ▲ when the CPI is 1 you will go into a leading pf setting. You can target up to 0,70 lead., which is an unlikely setting but when the PFC is on the LV side of a transformer and the customer is paying for energy on the HV side it may be useful to target to about 0.99 lead so as to compensate for transformer reactive current which is creating I²R losses in the windings on no load.

  • Page 8: The Info Menu

    5.0 THE INFO MENU To get into the INFO press escape ◄ a few times and then ▼., and you see INFO in the top right corner of the display. Enter the INFO programme with ►. Now you see the steps in the bottom section of the display.1-6 ., or 1-12., or 1-14 depending on the number of steps on this relay.

  • Page 9: Default Settings - And What Each Menu Does

    7.0 DEFAULT SETTINGS – AND WHAT EACH MENU DOES Default Default Set L-L system volts Selects whether steps are on AUTO-HOLD-ON-OFF Set CT ratio :1 Target Cosphi Set VT ratio :1 Switching Time Automatic Initialisation?YES/NO AUTO Selects what each output does. AUTO-Fon-Foff—AL( starts up ventilation fan ) Expert Menus 200 –...

  • Page 10: Trouble Shooting

    8.0 TROUBLE SHOOTING FAULT POSSIBLE CAUSE SUGGESTED REMEDY No indication in No power supply to terminals Check for voltage in the range 90-550v 50/60hz on the display UM1-UM2 these terminals Display shows Power supply is outside voltage Check the setting entered on menu 201 and 204 ALARM tolerance setting.

  • Page 11: Technical Data

    9.0 TECHNICAL DATA Measurement and Supply 90 – 550V 45- 65hz 5VA max. Fused to Max. 6A Voltage VT multiplication factor adjustable 1..350 Current Measurement 15mA ..6A single phase. Internal CT with Current Sensor 20 milliohm. CT multiplication factor adjustable 1..4500 Exit relay Ratings Max rating at 240v 50/60 hz phase-neutral Contactor coils 6A inrush Max rating 415v 50/60 hz phase-phase Contactor Coils 2.5A inrush...

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Cxplust

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