background image

Qualified Persons

 WARNING

The equipment covered by this publication must be operated and maintained by qual ified 
persons who understand any hazards involved and are thoroughly trained in the operation 
and maintenance of electronic control devices which are used in conjunc tion with power dis-
tribution 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 proce-
dures for this type of equipment .

Read this 

Instruction Sheet

NOTICE

Thoroughly and carefully read this instruction sheet before programming, operating, 

 

or maintaining your S&C Overcurrent Control . Familiarize yourself with the Safety Informa-
tion on page 3 . The latest version of this instruction sheet is available online in PDF format 
at 

sandc.com/Support/Product-Literature.asp

Retain this 

Instruction Sheet

This instruction sheet is a permanent part of your S&C Vista SD Underground Distribu­
tion Switchgear. Designate a location where you can easily retrieve and refer to this 
publication.

Warranty

The warranty and/or obligations described in S&C’s standard conditions of sale, as set 
forth in Price Sheet 150, plus any special warranty provisions, as set forth in the applicable 
product­line 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 all seller’s liability. In no event shall the seller’s 
liability to 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, 
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 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.

Warranty 

Qualifications

The seller’s standard warranty does not apply to components not of S&C manufacture that 
are supplied and installed by the purchaser or to the ability of seller’s equipment to work 
with such components.

Introduction

2    S&C Instruction Sheet 695-515 

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...

Page 34: ......

Reviews: