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S&C Vista Programming

S&C Vista Programming

Underground distribution switchgear overcurrent control
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S&C Vista
Underground Distribution Switchgear
®
Undercover™, Vault-Mounted, and Pad-Mounted Styles
Programming S&C Overcurrent Control

Table of Contents

Section
Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Read this Instruction Sheet . . . . . . . . . . . . . . . . . . . . . . . 2
Retain this Instruction Sheet . . . . . . . . . . . . . . . . . . . . . . 2
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Understanding Safety-Alert Messages . . . . . . . . . . . . . . 3
Following Safety Instructions . . . . . . . . . . . . . . . . . . . . . 3
Replacement Instructions and Labels . . . . . . . . . . . . . . . 3
Location of Safety Labels . . . . . . . . . . . . . . . . . . . . . . . . 4
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Power and Sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Time-Current Characteristics . . . . . . . . . . . . . . . . . . . . . 6
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Event Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Self Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Single-Pole or Three-Pole Tripping . . . . . . . . . . . . . . . . . 7
Connecting a Personal Computer . . . . . . . . . . . . . . . . . . 8
Setting the Communication Parameters . . . . . . . . . . . . . 8
Electronics and Burden Board . . . . . . . . . . . . . . . . . . . . 9
Removing the Electronics Module . . . . . . . . . . . . . . . . . 9
Connecting a Personal Computer . . . . . . . . . . . . . . . . . 11
Setting the Communication Parameters . . . . . . . . . . . . 11
Reinstalling the Electronics Module . . . . . . . . . . . . . . . 12
Factory-Default Settings . . . . . . . . . . . . . . . . . . . . . . . . 14
Fault Interrupters 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . 14
Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
View Menu 1 or 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Configure Menu 1 or 2 . . . . . . . . . . . . . . . . . . . . . . . . . 17
Change User Password . . . . . . . . . . . . . . . . . . . . . . . . 19
Group Configure Menu . . . . . . . . . . . . . . . . . . . . . . . . . 19
Test Trip Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
June 1, 2015
© S&C Electric Company 2000-2015, all rights reserved
Page
Section
Viewing of Self-Test Report . . . . . . . . . . . . . . . . . . . . . 22
Response to Self-Test Failure . . . . . . . . . . . . . . . . . . . . 22
Self-Test Failures and Warnings . . . . . . . . . . . . . . . . . . 23
Port Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
CT Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Steady State Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . 24
Time-Overcurrent Pickup Accuracy . . . . . . . . . . . . . . . . 24
Time-Overcurrent Response . . . . . . . . . . . . . . . . . . . . . 24
Instantaneous Pickup Accuracy . . . . . . . . . . . . . . . . . . 24
Instantaneous Response . . . . . . . . . . . . . . . . . . . . . . . 24
Definite-Time Response . . . . . . . . . . . . . . . . . . . . . . . . 24
Appendix A
External Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Appendix B
Communication Parameters . . . . . . . . . . . . . . . . . . . . . 29
Appendix C
Using Terminal Emulator Programs . . . . . . . . . . . . . . . . 30
HyperTerminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Appendix D
Coordination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Appendix E
Overcurrent Control Settings . . . . . . . . . . . . . . . . . . . . . 37
®
QuickSet 5030™ . . . . . . . . . . . . . . . . . . 31
Instruction Sheet 681-515
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Summary of Contents for S&C Vista

  • Page 1: Table Of Contents

    S&C Vista Underground Distribution Switchgear ® Undercover™, Vault-Mounted, and Pad-Mounted Styles Programming S&C Overcurrent Control Table of Contents Section Page Section Page Introduction Self-Test Report Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Viewing of Self-Test Report .

  • Page 2: Introduction

    3. The latest version of this instruction sheet is available online in PDF format at sandc.com/Support/Product-Literature.asp Retain this This instruction sheet is a permanent part of your S&C Vista Underground Distribu­ tion Switchgear. Designate a location where you can easily retrieve and refer to this Instruction Sheet publication.

  • Page 3: Safety Information

    Safety Information Understanding There are several types of safety­alert messages which may appear throughout this Safety-Alert instruction sheet as well as on labels attached to the S&C Overcurrent Control. Famil­ iarize yourself with these types of messages and the importance of the various signal Messages words, as explained below.

  • Page 4: Location Of Safety Labels

    Safety Information Location of Safety Labels WARNING Hazardous voltage inside can shock, burn, or cause death . Electronics module Enclosure for overcurrent control with cover removed to show electronics module. Burden-board module DANGER Never disconnect current transformer secondary circuits without de-energizing the switchgear .

  • Page 5: Description

    The control is housed in an enclosure which is mounted on the operation side of the switchgear. For UnderCover and Wet­Vault­ Mounted Style Vista units, the enclosure is fully submersible. The elec tronics module is removable for programming in the shop.

  • Page 6: Power And Sensing

    50 to 12,500 amperes (100 to 25,000 amperes for 900­ampere and 1200­ampere models). Vista UDS rated above 12.5 kA short circuit will respond to fault currents above 12.5 kA, but the event log will only record that a fault above 12.5 kA has occurred (or 25 kA for 900­ampere and 1200­ampere models).

  • Page 7: Event Recording

    Description Event Recording The overcurrent control features an internal event recorder that captures the last twelve fault operations for each fault interrupter. The event log indicates which poles have experienced a fault, the magnitude of the fault, and whether or not a ground over current was involved.

  • Page 8: Setting Up For Programming In The Field

    Use the HyperTerminal or other terminal program provided with Microsoft Windows emulator program to set or interrogate the control. Microsoft Windows Vista™, Windows ® 7, and Windows ® users will have to install a terminal emulator program. See Appendix C for further instructions.

  • Page 9: Setting Up For Programming In The Shop

    CTs so that the electronics module can be removed and replaced while the Vista switchgear is energized. A grounded shield protects the user from contact with the CT secondaries should the secondaries become disconnected from the burden board.
  • Page 10 Setting Up for Programming in the Shop 3. Loosen the two captive screws that secure the electronics module to the base plate. Captive screws secure electronics module to base plate . Loosen the two screws to prepare for removal of electronics module 4.

  • Page 11: Connecting A Personal Computer

    HyperTerminal program provided with Microsoft Windows or other terminal emulator program to set or interrogate the control. Microsoft Windows Vista, Windows 7, and Windows 8 users will have to install a terminal emulator program. See Appendix C for further instructions.

  • Page 12: Reinstalling The Electronics Module

    CT shorting clip away from the burden board removing the short circuit from the power CT secondaries. The con trol will power up if sufficient current is flowing through the Vista switchgear. Blind-mate connectors on main board and burden board...
  • Page 13 Setting Up for Programming in the Shop 4. Tighten the two captive screws that secure the electronics module to the base plate. Captive screws—tighten the two screws to secure electronics module to base plate 5. Connect the two trip connectors to the front of the electronics module. The trip connectors are keyed and cannot be swapped or installed incorrectly.

  • Page 14: Programming

    Programming Factory-Default The overcurrent control is provided with the factory­default settings shown here. Settings TCC Curve Type Curve Selection = 200E Instantaneous Pickup (Amps) = NA Definite­Time Delay (ms) = NA Fault Interrupters 1 Each overcurrent control is capable of operat ing up to two fault interrupters. To differenti ate between the two fault interrupters, the programming software refers to Fault and 2 Inter rupter 1 and Fault Interrupter 2.

  • Page 15: View Menu 1 Or 2

    Programming View Menu 1 or 2 The View Menu allows review of the settings and status of the control. (The View Menu shown at right is for Fault Interrupter 1.) 1. Select the desired option from the View Menu and input the corresponding number after the “...
  • Page 16 Programming 3. Target the ground faulted pole if ground current is greater than the ground pickup setting or if ground current is greater than or equal to 50A and greater than 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.

  • Page 17: Configure Menu 1 Or 2

    Programming 4. View Relay Self-Test The View Relay Self­Test option allows view ing of the self­test status report for the selected fault interrupter. This report includes the status of the trip capacitors, supply voltage, RAM, integrity of the data, CR­RAM, EEPROM, and voltage control. See “SELF­ TEST REPORT”...
  • Page 18 Programming 1. Change Relay Settings The Change Relay Settings option allows changes to the time­current characteristic curve settings for the selected fault interrupter. There is a prompt for the input for each setting. 1. After each prompt, enter the new setting and press <ENTER>. The available choices are shown in parenthesis.

  • Page 19: Change User Password

    Programming 2. View Relay Settings The View Relay Settings option allows viewing of the current control settings for the selected fault interrupter. The trip mode and frequency settings are included. INTERRUPTER 1 PHASE GROUND TCC Curve Type Min. Pickup (Amperes) Inst.
  • Page 20 Programming 1. Change Global Settings The Change Global Settings option allows changing of the fault interrupter ID, trip mode, and frequency. CAUTION Do not program three-pole fault interrupt ers to operate in single-pole trip mode . Single-pole tripping is not possible with three-pole fault interrupters . 1.

  • Page 21: Test Trip Menu

    Programming 3. Change Group Configure Password The Change Group Configure Password allows changing of the Group Configure Pass­ word. After the new password has been entered, the control will return to the Group Configure Menu. 1. Enter the current Group Configure Pass word after the first prompt. 2.

  • Page 22: Self-Test Report

    Self-Test Report Viewing of Self-Test The overcurrent control tests vital subsystems upon power up and periodically thereafter to ensure proper operation. To view the self­test report, select “View Relay Self­Test” from Report the View Menu for the selected fault interrupter. INTERRUPTER 1 FID=S&C –1000 –R100 –970317 SELF TESTS...

  • Page 23: Self-Test Failures And Warnings

    Self-Test Report The RAM self­test verifies proper operation of the read/write memory. This test periodi­ cally performs a nondestructive write/read to successive blocks of RAM to determine if a RAM failure has occurred. A failure occurs if the expected data is not read back from the RAM.

  • Page 24: Specifications

    Specifications Port Power Input Voltage Range: 4.0 to 5.0 Vdc Input Power: 1.8 W typical CT Power Minimum current on any phase: 600­A models: 45 A RMS 900­A and 1200­A models: 90 A RMS Maximum current on all phases: 600­A models: 720 A continuous 12 kA for 1 s 25 kA for 0.25 s...

  • Page 25: External Connections

    Appendix A External Connections This section describes each of the external connections to the control. Included in the fol lowing tables are terminal numbers, terminal names, mating­connector part numbers (where applicable), and the pin­out of the data port connectors. Terminal numbers are identified by labels on the electronics module or terminal block. Electronics module Trip outputs Trip Outputs...
  • Page 26 Appendix A Burden-board Burden module board Signal Power inputs inputs Signal Inputs Terminal Number Signal Pole Fault Interrupter 1, Pole 1 Fault Interrupter 1, Pole 2 Fault Interrupter 1, Pole 3 Fault Interrupter 1 Residual Fault Interrupter 2, Pole 1 Fault Interrupter 2, Pole 2 Fault Interrupter 2, Pole 3 Fault Interrupter 2 Residual...
  • Page 27 Appendix A Electronics module Data communications port Communication Port Pin-Out—Electronics Module Function Power In RXD (Data In) TXD (Data Out) No Connection Signal Reference No Connection No Connection No Connection Power Return S&C Instruction Sheet 681-515...
  • Page 28 Appendix A Overcurrent-control enclosure (Pad-Mounted and Dry-Vault- Mounted Style shown) Data port FACE VIEW Data Port Pin-Out—Control Enclosure Function Power Return RXD (Data In) TXD (Data Out) Power In Signal Reference S&C Instruction Sheet 681-515...

  • Page 29: Communication Parameters

    Appendix B Communication NOTICE Parameters Before using any Microsoft terminal emulator program, disable any PDA synchronizing software programs . Failure to do so may cause communication problems when connecting to the Vista Overcurrent Control . HyperTerminal Parameter Setting Baud Rate 9600...

  • Page 30: Using Terminal Emulator Programs

    Microsoft Windows. NOTICE Windows Vista, Windows 7, and Windows 8 do not include a terminal emulation program . Users must select and install a terminal emulator program to be able to communicate with the Vista Overcurrent Control . S&C recommends downloading one of two terminal emula- tor programs listed below .

  • Page 31: Hyperterminal

    HyperTerminal folder with its own name and icon. It stores the appropriate set tings for connecting to the Vista Overcurrent Control so that they do not have to be entered each and every time. In the “connection description” dialog box, enter a name for this file (for example, “Vista”).

  • Page 32: Coordination

    960 amperes with a “time dial” setting of 2. There are two curves shown which take into account the operating time tolerance of the “CO­9” overcurrent relay. Downstream of the Vista unit is an S&C SMU­20 power fuse with a 200K­ampere rating. Its minimum melt and total clearing curves are shown on the TCC coordination plot.
  • Page 33 0.25 seconds for any current magnitude above 14.5 kA (above 29 kA for 900­ampere and 1200­ampere Vista models). This matches the performance ratings of the control listed in the “Specifications”...
  • Page 34 When this occurs, the user must consider the following: If the fault level displayed in the warning message is higher than the maximum avail able fault current level at the Vista unit, the “I t security characteristic” will not become enabled. If the fault level displayed in the warning message is lower than the maximum available fault current level, then the “I...
  • Page 35 CT: 600:5 at 12.47 [kV] Phase Relay 600: 5 Vista Overcurrent Control Curve: U.S. U4 Pick Up: 880.00 [A] TD: 0.800 Vista 200K fuse 0.01 1000 10000 Figure 2. Vista Overcurrent Control programmed with ANSI/U.S. U4 curve. S&C Instruction Sheet 681-515...
  • Page 36 Appendix D 6000 (5000) 3000 (2500) 1500 (1250) 600 (500) 300 (250) 150 (125) 60 (50) 15.0 12.0 30 (25) 10.0 8.00 6.00 15 (12.5) 5.00 4.00 3.00 6 (5) 2.00 3 (2.5) 1.00 0.50 .6 .7 .8 .9 1 Current, Multiples of Pickup Figure 3.

  • Page 37: Overcurrent Control Settings

    Appendix E Overcurrent Control The Vista Overcurrent Control can be programmed to provide a wide variety of settings combinations. Listed below are the setting ranges that are displayed when the control is Settings connected to a personal computer. For C.T. ratio of 660:1: Phase TCC Curve (E, K, TAP, MAIN, U1, U2, U3, U4, U5, C1, C2, C3, C4, C5) For E­Speed Curves:...
  • Page 38 Appendix E Ground TCC Curve (OFF, TAP, MAIN) or (OFF, U1, U2, U3, U4, U5, C1, C2, C3, C4, C5 See Notes 1 and 2 For Coordinating­Tap Curves: Minimum Pickup (Amperes) (50, 65, 80, 100, 150, 200, 250, 300, 350, 400) For Coordinating­Main Curves: Minimum Pickup (Amperes) (100, 150, 200, 250, 300, 350, 400) For Curves U1­U5 and C1­C5:...
  • Page 39 Appendix E For Coordinating­Tap and Coordinating­Main Curves: Instantaneous Pickup (kA) (OFF, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6) For Curves U1­U5 and C1­C5: Instantaneous Pickup (Amperes) (OFF, 200 – 13200, 20 A steps) For Coordinating­Tap and U1­U5 and C1­C5 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)

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