S&C BankGuard PLUS Operation Download Page 2

2    S&C Instruction Sheet 1011-540

Introduction

Qualified Persons

 WARNING

Only qualified persons who are knowledgeable in the installation, operation, and 
maintenance of overhead and underground electric distribution equipment, along 
with all associated hazards, may install, operate, and maintain the equipment covered 
by this publication . A qualified person is someone who is trained and competent in:
•  The skills and techniques necessary to distinguish exposed live parts from nonlive 

parts of electrical equipment

•  The skills and techniques necessary to determine the proper approach distances 

corresponding to the voltages to which the qualified person will be exposed

•  The proper use of special precautionary techniques, personal protective equipment, 

insulated and shielding materials, and insulated tools for working on or near exposed 
energized parts of electrical equipment

These instructions are intended ONLY for such qualified persons . They are not 
intended to be a substitute for adequate training and experience in safety procedures 
for this type of equipment .

Read this  

Instruction Sheet

NOTICE

Thoroughly and carefully read this instruction sheet and all materials included in 
the product’s instruction handbook before installing or operating a BankGuard Plus 
Control . Familiarize yourself with the Safety Information and Safety Precautions on 
pages 3 and 4 . The latest version of this publication is available online in PDF format 
at 

sandc.com/en/support/product-literature/ .

Retain this  

Instruction Sheet

This instruction sheet is a permanent part of your  BankGuard Plus Control. Designate 
a location where you can easily 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 the equipment . Ratings for the 
are listed in the ratings table in Specification Bulletin 1011-31 . The ratings are also 
on the nameplate affixed to the product . 

Warranty

The warranty and/or obligations described in S&C’s Price Sheet 150, “Standard Conditions 
of Sale–Immediate Purchasers in the United States,” (or Price Sheet 153, “Standard 
Conditions of Sale–Immediate Purchasers Outside the United States,”) plus any special 
warranty provisions, as set forth in the applicable product-line specification bulletin, 
are exclusive. The remedies provided in the former for breach of these warranties shall 
constitute the immediate purchaser’s or end user’s exclusive remedy and a fulfillment of 
the seller’s entire liability. In no event shall the seller’s liability to the immediate purchaser 
or end user exceed the price of the specific product that gives rise to the immediate 
purchaser’s or end user’s claim. All other warranties, whether express or implied or 
arising by operation of law, course of dealing, usage of trade or otherwise, are excluded. 
The only warranties are those stated in Price Sheet 150 (or Price Sheet 153), and THERE 
ARE NO EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS 
FOR A PARTICULAR PURPOSE. ANY EXPRESS WARRANTY OR OTHER OBLIGATION 
PROVIDED IN PRICE SHEET 150 (OR PRICE SHEET 153) IS GRANTED ONLY TO THE 
IMMEDIATE PURCHASER AND END USER, AS DEFINED THEREIN. OTHER THAN AN 
END USER, NO REMOTE PURCHASER MAY RELY ON ANY AFFIRMATION OF FACT OR 
PROMISE THAT RELATES TO THE GOODS DESCRIBED HEREIN, ANY DESCRIPTION 
THAT RELATES TO THE GOODS, OR ANY REMEDIAL PROMISE INCLUDED IN PRICE 
SHEET 150 (or PRICE SHEET 153).

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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