S&C BankGuard PLUS Operation Download Page 3

S&C Instruction Sheet 1011-540    3

 Safety Information

Understanding  

Safety-Alert 

Messages

Several types of safety-alert messages may appear throughout this instruction sheet and 
on labels and tags attached to the BankGuard Plus Control. Familiarize yourself with 
these types of messages and the importance of these various signal words: 

 DANGER

“DANGER” identifies the most serious and immediate hazards that will likely result in 
serious personal injury or death if instructions, including recommended precautions, 
are not followed .

 WARNING

“WARNING” identifies hazards or unsafe practices that can result in serious personal 
injury or death if instructions, including recommended precautions, are not followed .

 CAUTION

“CAUTION” identifies hazards or unsafe practices that can result in minor personal 
injury if instructions, including recommended precautions, are not followed .

NOTICE

“NOTICE” identifies important procedures or requirements that can result in product 
or property damage if instructions are not followed .

Following Safety 

Instructions

If you do not understand any portion of this instruction sheet and need assistance, contact 
your nearest S&C Sales Office or S&C Authorized Distributor. Their telephone numbers 
are listed on S&C’s website 

sandc.com

, or call the S&C Global Support and Monitoring 

Center at 1-888-762-1100.

NOTICE

Read this instruction sheet thoroughly and carefully 
before installing a BankGuard Plus Control . 

Replacement 

Instructions  

and Labels

If additional copies of this instruction sheet are needed, contact your nearest S&C Sales 
Office, S&C Authorized Distributor, S&C Headquarters, or S&C Electric Canada Ltd.

It is important that any missing, damaged, or faded labels on the equipment be replaced 

immediately. Replacement labels are available by contacting your nearest S&C Sales 
Office, S&C Authorized Distributor, S&C Headquarters, or S&C Electric Canada Ltd.

Summary of Contents for BankGuard PLUS

Page 1: ...eplate 5 Control Software 6 SCADA Communication Equipment 6 Control Operation Overvoltage Protection for Capacitor Banks 7 Protection for Reactors 7 Automatic Control Features 8 Ungrounded and Grounde...

Page 2: ...retrieve and refer to this publication Proper Application WARNING The equipment in this publication is only intended for specific application The application must be within the ratings furnished for...

Page 3: ...ecautions are not followed NOTICE NOTICE identifies important procedures or requirements that can result in product or property damage if instructions are not followed Following Safety Instructions If...

Page 4: ...ed only to Qualified Persons See the Qualified Persons section on page 2 2 SAFETY PROCEDURES Always follow safe operating procedures and rules Always maintain proper clearance from energized component...

Page 5: ...essible during regular operation and troubleshooting The BankGuard Plus Control faceplate includes LEDs and buttons for monitoring the capacitor bank reactor and the control It also includes an LCD sc...

Page 6: ...ck perpetual calendar integrated circuit devices are battery backed and have a 10 year battery life in the Non Powered state The real time clock perpetual calendar integrated circuit counts seconds mi...

Page 7: ...Figure 2 This curve applies for up to 300 applications of power frequency overvoltages of the magnitude and duration shown The standard further requires that capacitors be capable of continuous opera...

Page 8: ...than the normal lockout process This logic is activated after a field adjustable time delay of 0 2 to 5 seconds by such faults producing a capacitor bank neutral to ground voltage in excess of an adj...

Page 9: ...wye banks the control uses an ana log input and digital voltmeter to detect the capacitor bank neutral to ground voltage as monitored by an S C 15 Volt Ampere Potential Device A digital filter attenu...

Page 10: ...utral to ground voltage magnitude to the Gross Over Voltage Level Lockout Level and Alarm Level setpoint values if enabled If the compensated neutral to ground voltage magnitude exceeds a setpoint val...

Page 11: ...ded In addition to the neutral to ground potential device one 30 Volt Ampere S C Potential Device is required to be installed on any one of the line phases to obtain a reference angle when the Unbalan...

Page 12: ...ue continuously for a time greater than the applicable time delay setpoint value the appropriate control action is taken The control will lock out the bank if the Gross Over Voltage Level or the Locko...

Page 13: ...rovided in addition to capacitor unit manufacturing tolerance Using the Law of Cosines a corrected magnitude is obtained See Figure 8 A cor rected magnitude is calculated and stored in the control s m...

Page 14: ...g the stored approximate corrected magnitude is subtracted from the real time tap point to ground voltages magnitude in percent during each 200 milliseconds to obtain a compensated neutral to ground v...

Page 15: ...option STEP 3 In the dialog box select the type of report to generate and then click on the OK button There are four types of reports Full Includes all the information contained in the control System...

Page 16: ...program files for this for this type of control The extension CFG is added automatically Note This process does not save the Location setting on the Setup screen or the Communications RTU Address set...

Page 17: ...n the Cancel button to close the Connect dialog box If the IntelliLink software is already run ning choose the Disconnect option from the Connection menu and then choose the Close Screenset option fro...

Page 18: ...reenset from memory STEP 2 FromtheFilemenu choosetheOpenSnapshot option The Open Controller Data File dialog box opens STEP 3 Select the snapshot desired to use and then click on the Open button STEP...

Page 19: ...ndows choose Start menu Programs EnergyLine Update The Update window appears Figure 10 b Select the desired options and then click on the Start Update button Note If the control is not connected to CO...

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