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1011-540 5-17-04

BankGuard PLUS™

Control

Operation Instructions

S&C Electric Company
6601 North Ridge Blvd.
Chicago, Illinois 60626 USA

Содержание BankGuard PLUS

Страница 1: ...1011 540 5 17 04 BankGuard PLUS Control Operation Instructions S C Electric Company 6601 North Ridge Blvd Chicago Illinois 60626 USA...

Страница 2: ...duct Support Documents Documents are posted in PDF format Safety Information WARNING The equipment covered by this publication must be installed operated and maintained by qualified persons who are kn...

Страница 3: ...anding Safety Alert Messages There are several types of safety alert messages which may appear throughout this instruction sheet as well as on labels attached to the BankGuard PLUS Control Familiarize...

Страница 4: ...le by contacting your nearest S C Sales Office S C Headquarters or S C Electric Canada Ltd Instruction Sheet Contents Introduction 5 Applicable Software 5 Control Device Hardware and Software 6 Intell...

Страница 5: ...e 9 z Generating reports page 21 z Saving and loading setup configurations page 22 z Viewing the IntelliLINK software without data page 23 z Creating and using snapshots VM files page 24 z Updating th...

Страница 6: ...buttons which allow you to monitor the capacitor bank reactor and the control device It also includes a liquid crystal display and buttons for scrolling and selecting data Figure 1 Location of BankGua...

Страница 7: ...or SCADA master station and other conditions The Control Device software and the setpoint values are all stored in non volatile control device memory This memory survives power interruptions The memo...

Страница 8: ...nications equipment can be mounted near the control device This eliminates clutter and provides a higher level of reliability for the overall installation DNP 3 0 is the standard protocol for the BAnk...

Страница 9: ...acitor unit operating time at varying per unit multiples of the capacitor nameplate voltage rating This curve applies for up to 300 applications of power frequency overvoltages of the magnitude and du...

Страница 10: ...s before the control device locks out the bank This lets you readily locate the failed capacitor unit The BankGuard PLUS Automatic Control Device includes a standard alarm function which provides an a...

Страница 11: ...raneous voltages can introduce significant errors in or even overpower the voltage signal created by the loss of individual capacitor units For example a fixed error voltage may be present due to inhe...

Страница 12: ...of the error voltage caused by system voltage imbalances and or inherent capacitor bank imbalances approaches 50 of the value of the neutral to ground voltage calculated for one isolated capacitor un...

Страница 13: ...tage unbalances caused by the loads are minimal During each control cycle the stored approximate magnitude correction value is subtracted from the real time neutral to ground voltage magnitude to obta...

Страница 14: ...t to neutral voltages to change If the real time magnitude of the sum exceeds a setpoint value continuously for a time greater than the applicable time delay setpoint value the appropriate control act...

Страница 15: ...ared with the Gross Over Voltage Level Lockout Level and Alarm Level setpoint values if enabled Reactor turn failures will cause the real time neutral to ground voltage magnitude to change If the real...

Страница 16: ...stem imbalances is provided During the setup of the unbalance compensation feature a neutral to ground voltage magnitude sample a sum of the line voltages sample and the reference angle are used to ca...

Страница 17: ...ardware samples the sensor s analog output waveform and then converts the samples to digital values Figure 6 The control s software processes the digital values using a Discrete Fourier Transform algo...

Страница 18: ...ain a compensated neutral to ground voltage magnitude The compensated neutral to ground voltage magnitude is then compared to the setpoint value s If the compensated neutral to ground voltage magnitud...

Страница 19: ...s V tap sum and the value of the phase angle Aref between the tap point voltages sum and the reference line voltage Using the Law of Cosines an approximate corrected magnitude is obtained utilizing th...

Страница 20: ...BankGuard PLUS S C Electric Company Control Proprietary Information 20 Operation 1011 540 5 17 04 Figure 9 Approximate Corrected Magnitude...

Страница 21: ...orts 3 In the dialog box select the type of report you want to generate then click OK There are four kinds of reports z Full Includes all the information contained in the control device z System Setup...

Страница 22: ...Setpoints dialog box specify a name and location for this configuration file then click Save If you do not specify a location the file is saved to the same directory as the program files for this for...

Страница 23: ...nd Help file without connecting to a control device or a snapshot 1 Start the IntelliLINK software on your computer 2 During startup click Cancel to close the Connect dialog box If the IntelliLINK sof...

Страница 24: ...can skip this step 2 From the File menu choose Save Snapshot 3 In the dialog box specify a file name and location for this snapshot then click Save If you do not specify a location the file is saved...

Страница 25: ...control device which is in the field while you do not have access to a comparable device 1 Connect to the snapshot For details see View connect to a Snapshot on page 24 2 Change the configuration set...

Страница 26: ...uter For details see To Start the IntelliLINK Software in the Setup Instruction Sheet 1011 530 2 Connect your computer to the LOCAL COMM PORT or optical port on the control device 3 Start the Update p...

Страница 27: ...follow the progress in the lower right corner of the window Once the update is complete the window automatically closes CAUTION NOTE If the software on the disk is not the same type as the software in...

Страница 28: ...BankGuard PLUS S C Electric Company Control Proprietary Information 28 Operation 1011 540 5 17 04...