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Understanding  

Safety-Alert 

Messages

Several types of safety­alert messages may appear throughout this instruction sheet and 
on labels attached to the S&C Overcurrent Control. Famil iarize 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 pre-
cautions, are not followed .

 WARNING

“WARNING” identifies hazards or unsafe practices that 

can

 result in serious per-

sonal 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 precau tions, 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 tele­ 
phone numbers are listed on S&C’s website 

sandc.com

. Or call the S&C Global Monitoring  

and Support Center at 1­888­456­1100.

NOTICE

Thoroughly and carefully read this 

 

instruction sheet before programming 
your S&C Overcurrent Control .

Replacement  

Instructions  

and Labels

If you need additional copies of this instruction sheet, contact your nearest S&C Sales 
Office, 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 Headquarters, or S&C Electric Canada Ltd.

Safety Information

  

S&C Instruction Sheet 695-515

  

3

Summary of Contents for Vista SD

Page 1: ...onfigure Menu 14 Test Trip Menu 16 Self Test Report Viewing of Self Test Report 17 Response to Self Test Failure 17 Self Test Failures and Warnings 18 Specifications Port Power 19 CT Power 19 Steady S...

Page 2: ...ranty 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 purc...

Page 3: ...OTICE 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 p...

Page 4: ...G Hazardous voltage inside can shock burn or cause death Safety Information DANGER Never disconnect current transformer secondary circuits without de energizing the switchgear Hazardous voltage will s...

Page 5: ...ounted style Vista SD units the overcurrent control enclosure is fully submersible The elec tronics module is removable for programming in the shop Programming A personal computer furnished by the use...

Page 6: ...TCC curves can be customized into hundreds of dif ferent curves using a variety of instantaneous pickup settings discrete choices from 0 2 kA through 6 kA and definite time delay settings discrete ch...

Page 7: ...rmation can be accessed via a personal computer con nected to the data port of the control Self Testing Whenever the overcurrent control is powered up and then periodically thereafter it automatically...

Page 8: ...A for connecting thecontrolto auser furnished personal computer in the field These cables provide for both communications and power For Microsoft Windows users no special software is requiredtocommu n...

Page 9: ...areas of the menu system The User Password must be entered to change control settings test trip the solenoids and change the User Password The Group Configure Password is required to change the global...

Page 10: ...the Enter button View Menu INTERRUPTER 1 select number 1 View event report last 12 events 2 View load current 3 View relay settings 4 View relay self test 9 Switch to Main Menu View FI 1 1 View Event...

Page 11: ...n 10 of the maximum phase current 4 If only one target is declared from the previous logic target the faulted pole of the remaining three with the highest cur rent The primary RMS magnitude of each po...

Page 12: ...for menu Configure Menu 1 or 2 The Configure Menu option allows review and changes to the TCC curve set tings for the selected fault inter rupter The Configure Menu box below is for Fault Interrupter...

Page 13: ...rt discussed in View Event Report on page 10 will be reset Press Q to return to menu Phase TCC Curve E K TAP MAIN U1 U2 U3 U4 U5 C1 C2 C3 C4 C5 E tap Minimum Pickup Amps 50 65 80 100 150 200 250 300 3...

Page 14: ...m the new password re enter it after the third prompt USER PASSWORD CHANGE USER PASSWORD Enter new password four digits blank for no change Re enter new password Group Configure Menu The Group Configu...

Page 15: ...n to menu ID for Interrupter 1 20 characters INTERRUPTER 1 interrupter pole 1 ID for Interrupter 2 20 characters INTERRUPTER 2 interrupter pole 2 1 pole or 3 pole trip mode for Interrupter 1 1 3 1 3 1...

Page 16: ...of firmware Refer to the nearest S C Sales Office for instructions Test Trip Menu The Test Trip Menu option allows test tripping of the fault interrupters all three poles or single poles Step 1 Selec...

Page 17: ...on and firmware date code Trip Caps The status of the trip capacitors is reported for each fault interrupter pole If the trip capacitors are not charged to at least 50 volts a low condition is reporte...

Page 18: ...ion is enabled The message Relay enabled using default settings is displayed at the top of each menu If the EEPROM failure persists i e if default settings cannot be stored in EEPROM a self test failu...

Page 19: ...C Curves 5 A primary and 5 of setting Time Overcurrent Response E K Coordinating Tap and Coordinating Main Curves 0 to 10 in terms of current OR 0 to 20 in terms of time OR 0 to 6 ms whichever gives t...

Page 20: ...rs Terminal numbers are identified by labels on the electronics module or terminal block Trip outputs Electronics module Trip Outputs Terminal Number 1 2 Pole Mating Connector Part Number 1 2 Fault In...

Page 21: ...Fault Interrupter 2 Pole 1 18 Fault Interrupter 2 Pole 2 19 Fault Interrupter 2 Pole 3 20 Fault Interrupter 2 Residual Power Inputs Terminal Number Power Pole 21 Fault Interrupter 1 Pole 1 22 Fault I...

Page 22: ...onics module Communication Port Pin Out Electronics Module Pin Function 1 Power in 2 RXD Data In 3 TXD Data Out 4 No connection 5 Signal reference 6 No connection 7 No connection 8 No connection 9 Pow...

Page 23: ...current control enclosure Pad mounted style shown 2 1 4 5 3 FACE VIEW Data Port Pin Out Control Enclosure Pin Function 1 Power return 2 RXD Data In 3 TXD Data Out 4 Power in 5 Signal reference S C Ins...

Page 24: ...None Data Bits 8 Stop Bits 1 Flow Control XON XOFF The overcurrent control does not use hardware flow control RTS CTS AcSELerator Quickset SEL 5030 Parameter Setting Device Data Speed 9600 Data Bits...

Page 25: ...rTerminal Website www hilgraeve com hyperterminal html Note This software is the same software supplied with previous versions of Microsoft Windows It is available for purchase Basic instructions for...

Page 26: ...nnecting click on the Reconnect button on the toolbar Again this function is located under the Call menu Step 6 To exit this session select File Exit or click on the X button in the upper right hand c...

Page 27: ...ents Example Referring to the coordination plot in Figure 2 on page 30 a Vista SD switchgear assembly with 600 ampere fault interrupt ers is placed into an electrical system where the upstream protect...

Page 28: ...rity Characteristic Time s Current kA Maximum Rating 20 15 10 5 0 25 10 5 0 Figure 1 S C Overcurrent Control maximum current rating adjusted for C T saturation Table 1 on page 29 should be used to det...

Page 29: ...ow the limits shown for the operation of the I2t security characteristic during fault levels up to 14 5 kA The Time Dial setting is below the threshold of 10 0 at a Pickup setting of 1200 amperes If t...

Page 30: ...U4 Pick Up 880 00 A TD 0 800 0 1 51 Vista 200K fuse 0 01 0 4 1 10 1000 100 10000 Fuse S C SMU20 K 14 4kV Rating 200 0 A 12 47 kV Phase Relay Relay WEST CO 9 Tap Range Tap 0 Pick Up 960 00 A TD 2 CT 6...

Page 31: ...0 1 00 0 50 6000 5000 3000 2500 1500 1250 600 500 300 250 150 125 60 50 30 25 15 12 5 6 5 3 2 5 100 90 80 40 70 60 50 30 20 10 9 8 4 7 6 5 3 2 1 9 8 4 7 6 5 3 2 1 09 08 04 07 06 05 03 02 01 100 90 80...

Page 32: ...r Coordinating Main Curves Minimum Pickup Amperes 100 150 200 250 300 350 400 450 500 600 700 800 For Curves U1 U5 and C1 C5 Minimum Pickup Amperes 50 1200 1 A steps Time Dial Multiplier U Curves 0 5...

Page 33: ...steps For Coordinating Tap and U1 U5 and C1 C5 Curves Definite Time Delay ms 60 Hz OFF 32 48 64 80 96 Definite Time Delay ms 50 Hz OFF 40 60 80 100 120 For Coordinating Main Curves Definite Time Dela...

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