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S&C Vista SD Programming

S&C Vista SD Programming

Underground distribution switchgear overcurrent control
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S&C Vista
SD Underground Distribution Switchgear
®
Outdoor Distribution (17.5 kV and 29 kV)
Programming S&C Overcurrent Control

Table of Contents

Section
Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Read this Instruction Sheet . . . . . . . . . . . . . . . . . . . . . . . 2
Retain this Instruction Sheet . . . . . . . . . . . . . . . . . . . . . . 2
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warranty Qualifications . . . . . . . . . . . . . . . . . . . . . . . . . . 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
Connecting a Personal Computer . . . . . . . . . . . . . . . . . . 8
Setting the Communication Parameters . . . . . . . . . . . . . 8
Factory-Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . 9
Fault Interrupters 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . 9
Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
View Menu 1 or 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Configure Menu 1 or 2 . . . . . . . . . . . . . . . . . . . . . . . . . 12
Change User Password . . . . . . . . . . . . . . . . . . . . . . . . 14
Group Configure Menu . . . . . . . . . . . . . . . . . . . . . . . . . 14
Test Trip Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
November 21, 2016
© S&C Electric Company 2015-2016, all rights reserved
Page
Section
Viewing of Self-Test Report . . . . . . . . . . . . . . . . . . . . . 17
Response to Self-Test Failure . . . . . . . . . . . . . . . . . . . . 17
Self-Test Failures and Warnings . . . . . . . . . . . . . . . . . . 18
Port Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
CT Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Steady State Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . 19
Time-Overcurrent Pickup Accuracy . . . . . . . . . . . . . . . . 19
Time-Overcurrent Response . . . . . . . . . . . . . . . . . . . . . 19
Instantaneous Pickup Accuracy . . . . . . . . . . . . . . . . . . 19
Instantaneous Response . . . . . . . . . . . . . . . . . . . . . . . 19
Definite-Time Response . . . . . . . . . . . . . . . . . . . . . . . . 19
Appendix A
External Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Appendix B
Communication Parameters . . . . . . . . . . . . . . . . . . . . . 24
Appendix C
Using Terminal Emulator Programs . . . . . . . . . . . . . . . . 25
HyperTerminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Appendix D
Coordination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Appendix E
Overcurrent Control Settings . . . . . . . . . . . . . . . . . . . . . 32
With Visi-Gap
®
Load-Interrupter Switches and
Visi-Gap
Fault Interrupters
®
®
QuickSet 5030™ . . . . . . . . . . . . . . . . . . 26
Instruction Sheet 695-515
Page

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  • Page 1: Table Of Contents

    S&C Vista SD Underground Distribution Switchgear With Visi-Gap ® ® Load-Interrupter Switches and Outdoor Distribution (17.5 kV and 29 kV) Visi-Gap Fault Interrupters ® 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 SD Underground Distribu­ Instruction Sheet tion Switchgear. Designate a location where you can easily retrieve and refer to this publication.

  • Page 3: Safety Information

    Safety Information Understanding Several types of safety­alert messages may appear throughout this instruction sheet and Safety-Alert 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: Messages DANGER “DANGER”...

  • 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

    General The following instructions are for field and shop programming of the S&C Overcurrent Control. This microprocessor­based control is designed for use on S&C Vista SD Under­ ground Distribution Switchgear to provide fault detection and operation of the resetta ble vacuum fault interrupters.

  • Page 6: Power And Sensing

    50 to 12,500 amperes. S&C Vista SD Underground Distribution Switchgear 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.

  • Page 7: Event Recording

    Description Event Recording The overcurrent control features an internal event recorder that captures the last 12 fault operations for each fault interrupter. The event log indicates which poles have experienced a fault, the magnitude of the fault, and whether a ground over­ current was involved.

  • Page 8: Setting Up For Programming

    Setting Up for Programming Connecting a Personal Computer Adapter cable—connect cable to communications data port on enclosure NOTICE S&C does not recommend removing the S&C Over- current Control from its enclosure for workbench Data port programming . The Overcurrent Control is in a submers- ible enclosure .

  • Page 9: 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 and 2 Fault Inter rupter 1 and Fault Interrupter 2.

  • Page 10: View Menu 1 Or 2

    Programming Step 3 Refer to one of the following sections for further information: Option Page View Menu 1 ........10 Configure Menu 1 .
  • Page 11 Programming The overcurrent control stores a nonvola tile short event report each time it issues a trip pulse. The short event report contains the fol lowing information: The faulted pole(s) and whether ground was involved. The “target” (X) logic is as follows: 1.

  • Page 12: Configure Menu 1 Or 2

    Programming View Relay Self-Test The View Relay Self-Test 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 Failures and Warnings”...
  • Page 13 Programming Change Relay Settings The Change Relay Settings option allows changes to the TCC curve settings for the selected fault interrupter. There is a prompt for the input for each setting. Step 1 After each prompt, enter the new setting and press the Enter button. The available choices are shown in parenthesis.

  • Page 14: Change User Password

    Programming 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. Pickup (kA) Definite­Time Delay (ms) Trip Mode Frequency...
  • Page 15 Programming 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 . Step 1 After each prompt, enter the new setting and press the Enter button.

  • Page 16: Test Trip Menu

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

  • Page 17: Self-Test Report

    Self-Test Report Viewing the Self-Test The Overcurrent control tests vital subsystems upon power up and periodically there­ after to ensure proper operation. To view the self­test report, select the View Relay Report Self-Test option from the View menu for the selected fault interrupter. INTERRUPTER 1 FID=S&C –1000 –R100 –970317 SELF TESTS...

  • Page 18: 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 whether a RAM failure has occurred. A failure occurs if the expected data are not read back from the RAM.

  • Page 19: 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 Maximum current on all phases: 600­A models: 720 A continuous 12 kA for 1 s 25 kA for 0.25 s Maximum measured current: 600­A models:...

  • Page 20: 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 data­port connectors. Terminal numbers are identified by labels on the electronics module or terminal block. Electronics module Trip outputs Trip Outputs...
  • Page 21 Appendix A Burden-board module Burden board Signal inputs Power 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 22 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 695-515...
  • Page 23 Appendix A Overcurrent-control enclosure (Pad-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 695-515...

  • Page 24: 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 S&C Overcurrent Control . HyperTerminal Parameter Setting Baud Rate 9600 Parity None Data Bits...

  • Page 25: Using Terminal Emulator Programs

    Appendix C NOTICE Because of the nature of the internal connections of some secondary injection-style relay-test sets, a ground-loop condition can develop when both the test set and a PC are connected to an ac wall outlet . The ground-loop condition may damage the PC data port . Always isolate the PC by running it on an isolated ac supply or by running the PC on its battery packs .

  • Page 26: Acselerator ® Quickset 5030

    Appendix C HyperTerminal Step 3 continuted The next dialog box asks for a phone number to dial. Ignore this and go to the Connect Using list at the bottom of the dialog box. With the relay connected, select the correct COM # from the drop down menu. The assigned COM # can be found under Control Panel>System>Hardware>Device Manager.

  • Page 27: Coordination

    “between” the curves of the upstream source­side and downstream load­side devices. Note that the Vista SD curve selected is shown starting at 150% of the actual pickup setting in primary amperes (880 amperes × 1.5 = 1320 amperes). The Time Dial setting selection of 0.8 was selected to maintain an acceptable coordinating time interval (CTI) between the...
  • Page 28 Appendix D One final consideration in the selection of ANSI/US and IEC curve families to achieve proper power system coordination is the “I t security characteristic” of the S&C Over­ current Control, included with controls having firmware version R300 or later. The control will self­protect its internal power supply and current­sensing circuitry when a Pickup set ting (in amperes) and/or a Time Dial setting exceeds the thermal limits of the electronic cir cuitry (in both the electronics module and burden board assemblies).
  • Page 29 Appendix D Table 1. I t Security Characteristic Settings Limits (660:1 CT) Affected Settings for Affected Settings for Curve Fault Current ≥ 14.5 kA Fault Current = 10.0 kA Time Dials > 4 .3 @ 50 A pickup Time Dials > 9 .1 @ 50 A pickup Time Dials >...
  • Page 30 Appendix D Current in Amperes: x 10 at 12.47 kV. 1000 Fuse Phase Relay S&C SMU20 K 14.4kV Relay WEST CO-9 Rating: 200.0 [A] Tap Range: [-] Tap: 0 12.47[kV] Pick Up: 960.00 [A] TD: 2 CT: 600:5 at 12.47 [kV] Phase Relay 600: 5...
  • Page 31 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 32: Overcurrent Control Settings

    Appendix E Overcurrent Control The S&C 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: Curve Selection (25E, 30E, 40E, 50E, 65E, 80E, 100E, 125E, 150E, 175E, 200E, 250E,...
  • Page 33 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:...

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