S&C Scada-Mate Switching Systems: Switch Control
Instruction Sheet 768-580
Scada-Mate, Switching, Systems, --, Outdoor
Instruction Manual
EDOC 001514 I S&C Scada-Mate@ SwitchingSystems Switch Control
Outdoor Distribution
INSTRUCTIONS
For Installation and Operation
I
1
This publicationprovidesinstructions for installation and operation of the switch control
used with S&C Scada-Mate Switches. For instructions on installation and operationof Scada-
Mate Switches, refer to S&C Instruction Sheet768-500 furnished with theswitch.
ITABLE OF CONTENTS
Section
Page Number
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
CHECKING THE SHIPMENT . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLINGINTCHOENSTWRIOTLCH
THE
COMMUNICATIONANDCONTROL UNIT . . . . . . . . . . . . .4
INSTALLING THE COMMUNICATION AND
CONTROLUNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
I
Section
Page Number
CONNECTING THE CONTROCLABLE . . . . . . . . . . . . . . .. 6
PLACING THE SWITCHCONTROL INTO OPERATION . . . . . . 6
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
APPENDIX A CNaDutaemlsobcgreirption
. . . . . . . . . . . . . . . . . . . . .7
APPENDIX B
Calibrating the Voltage and Current Sensor Outputs . . . . . .8
Supersedes lnstructlon Sheet 768-580dated 12-23-91 @1992
SC&OCMEPLAENCYTRIC LTDS.&CCANEALEDCATRIC
Chicago OctobeTroronto
INSTRUCTIONSHEET 768480
Page 1 of 8 26,1992
S&C Scads-Mate@ Switching Systems Switch Control
Outdoor Distribution
I
1 INTRODUCTION
-1
The equipment covered by this publication must be selected for a specific application and it must be installed, operated, and maintained by qualified persons who are thoroughly trained and who understand any hazards that may be involved. This publication is written only for such qualified persons and is not intended to be a substitute for adequate training and experience in safety procedures for this type of equipment. _.
An S&C Scads-Mate Switching System consists of an integer style load-interrupting S&C Scads-Mate Switch and a control unit. This publication provides instructions for the switch control, shown in Figures 1 and 2,
for installation in a user-supplied control-unit enclosure. The switch control includes open/close pushbuttons, local/remote switch, and operation counter, as well as a terminal strip for connection of user-supplied 120-volt ac control power and 24-volt dc tripping power (12 amperes for 50 milliseconds), current sensor outputs (5 amperes ac), voltage sensor output (userselectable 5 volts ac or 69 volts ac), open/close command inputs, and switch-position indication output.
Instructions for installation and operation of the Scads-Mate Switch are provided in S&C Instruction Sheet 768-500, shipped with the switch.
Power indicator -r=
1 E-pin terminal strip
Standoff spacers (not visible)
Operation counter Figure 1. Switch control.
Power switch
/41/$1
9%" `i ( 4%"
L* 4-pin / terminal strip
768-580 INSTRUCTION SHEET
Page 2 of 8 October 26,1992
S&C ELECTRIC COMPANY l Chicago S&C ELECTRIC CANADA LTD. l Toronto
q-
CHECKING THE SHIPMENT
A catalog drawing and wiring diagrams for the switch control will be found in a water-resistant envelope shipped with the switch control. Study these diagrams carefully and check the parts to verify that all parts are at hand. The shipment will include the following items: 1. A switch control and eight standoff spacers (less
hardware) ready for inclusion in a user-supplied communication and control unit. 2. A panel-mount style connector for attachment to shielded control cable from the switch. The connector includes the connector base, insert portion, gasket, and security belt for installation on the usersupplied communication and control unit. If the Scads-Mate Switch was shipped with the switch control, a catalog drawing and wiring diagrams for the switch will be found in a water-resistant envelope shipped with the switch. Study these diagrams carefully and check the parts to verify that all parts are at hand. The shipment will include the following items:
1. A three-pole group-operated integer style ScadaMate Switch, complete with interphase drive, storedenergy operating mechanism, and sensors all factoryassembled on a single base.
2. A shielded control cable with multi-pm connectors for low-voltage electrical connection of the switch to the user-supplied communication and control unit.
3. Miscellaneous mounting hardware (less throughbolts and associated hardware) for securing the Scads-Mate Switch to the utility pole.
4. Optional features that are shipped unassembled to the Scads-Mate Switch, such as wildlife protection components. Also included in the water-resistant envelope is a
yellow card containing magnitude ratios for S&C Current Sensors and S&C Current/Voltage Sensors. These values must be used to calibrate the voltage and current sensor inputs to the RTU that will be installed in conjunction with the switch in order to offset the unit-to-unit variations in the sensors.
Connector base -1
Security belt chain
Security belt
Figure 2. Panel-mount style connector for attachment of shielded control came.
q
S&C ELECTRIC COMPANY l Chicago
S&C ELECTRIC CANADA LTD. l Toronto
INSTRUCTION SHEET 7681580
Page 3 of 8 October 26,1992
Sac I Scada-Mate@ Switching Systems Switch Control
O-
u ~
t.d~ o~ o
r
Distribution
I INSTALLING THE SWITCH CONTROL IN THE COMMUNICATION AND CONTROL UNIT
Step 1 Prepare an entranceforthepanel-mountstyle connector at a suitable location onthe rearof the usersuppliedcommunication and control unit enclosure. See Figure 3 for mounting details.
Step 2 Attach the connector base-with its gasket-to the outside of the enclosure, using 8-32 hardware (not furnished). The security belt chain should be attached to theconnector base using oonfethe mounting screws. Do not install the insert portion of the connector at this time.
step 3
Make sure that the power switch on the switch control is i n "OFF,"Mount the switch controlcircuitboard inside the enclosure. The eight standoff spacers are tappedtoaccept 6-32 screws(notfurnished). See Figure 1.
Step 4 Referring to the wiring diagram furnished, prepare a wiring harness to connect the terminals in the insert portion of thepanel-mount styleconnector tothe 18-pin terminal strip on the switch control. Make up the connections as follows:
(a) For signal and control lines, use 16-gauge wire of
suitablelength.Stripapproximately
3/8 inch of
insulation from bothends of each wire. Insert each
wire in itsappropriateterminal i n the insert
portion of the panel-mount stgle connector, then
securely tighten the terminalscrew.
(b) For connections to ground, use 12-gauge wire of
suitablelength.Stripapproximately
YE inch of
insulation from both endosf each wire. Insert each
wire in itsappropriateterminal in the insert
portion of the panel-mount style connector, then
4'1,"
1
5/32'' dia. holes (4)
Cutout for insert portion of connector
7 Security belt chain
&
0
0
L
J
I /
/
Cover
. Security
u] Connector
belt
base
Hole for padlock
igure 3. Mounting details of panel-mount style connector.
76am58oINSTRUCTIONSHEET
Page 4 of 8 October 26,1992
COMELPEACNTYRICS&C LTD.CAENLAEDCATRISC&C
Chicago Toronto
IINSTALLING THE SWITCH CONTROLIN THE COMMUNICATION AND CONTROL UNIT- Continued 1
securely tighten the terminal screw. Note that the connector body ground terminal-indicated as "G" on the wiring diagram-is located at one end of the insert portion.
(c)Pushthefreeends
of the wires throughthe
connector base and into the enclosure. Thenattach
theinsertportion of thepanel-mountstyle
connector totheconnectorbaseand
securely
tighten the four captive 10-32 screws. Make sure
that Terminal 1 ispositioned at the top.
(d) Attach the dustcover to the connector, to protect
it untilthecontrolcablefromtheswitch
is
connected.
(e)Inserteachsignalorcontrol
linewire in its
appropriate terminal in the 18-pin terminal strip
on the switchcontrol,thensecurelytighten the
terminal screw.
Step 5 Referring to the wiringdiagramfurnished,make up the connections from the 18-pin terminal strip on the switch control to the enclosure ground and from the
22-pin terminalstrip on the switchcontrol tothe enclosure ground. Also make up the connectionsfrom the insert portion of the panel-mount style connector to ground. Use 12-gauge wireof suitable length for each connection. All grounds should be made at a common point in the enclosure.
Step 6 Referring to the wiringdiagramfurnished,make up the connections from the 22-pin terminal strip to the user-supplied remote terminal unit (and transducers, if applicable)including thecurrentsensoroutputs, voltage sensor outputs, open/close command inputs, switch-position indication output (one aa contact and one bb contact), and local-remote status indication output.The "wetting"voltage inputtothe 22-pin terminalstrip(used in the circuits which provide switch-position and local-remote status indication) must be obtained fromthe samewetting-voltage source used for the remote terminal unit. Use 16-gauge wire for all connections.
I ICNOSTMTAMHLUELINNIAGCNADTION
CONTROL UNIT
I
Before installing the communication and control unit, install the Scada-MateSwitch in accordance with Instruction Sheet 768-500 shipped withthe switch.
step 1 Mount the communication and controlunit on the utility pole. Tlw communicatian and control unit should be m n t e d at least 10feet above ground level to minimize exposure to vandals.
step 2 Referringto thewiring diagram, makeup theconnections from the user-supplied 120-voltac control power to the 4-pin terminal strip on the switch control. Also make up the connectionfrom the user-supplied 24-volt dc tripping power source to the 22-pin terminal strip on the switch control.Use 16-gaugewire for all connections.
step 3 Ground the enclosure by solidly connecting one number 6 AWG wire (or wires of equivalent cross-sectionalarea) to the enclosure ground point. Connect the other end of the wire to theswitch ground wire(s).
The capability of the switch control to withstand voltage surges is confirmed by two design tests The ANSI/IEEE Surge Withstand Capability Test (ANSI/ IEEE Standard C37.90.1-1989); plus a much more severe (5-kv, 3.75-joule) capacitive-dischargetest specially developed by S&C to duplicate or exceed voltage surgesmeasured on distributioncircuits. Adequate shielding should be provided for controlcircuit wiring to reduce the levelof surges caused by induced voltages. If frequent surges in excess of factory-tested levels are anticipated, additional surge protection should be provided in accordance with established industry practices.
S&C ELECTRIC COMPAPNagYe Chicago
LTDS.&CCANEALEDCATRIC
Toronto
INSTRUCTIONSHEET 768480
5 of 8 October 26,1992
I S&C Scada-Mate@Switching Systems Switch Control
Outdoor Distribution
ICONNECTING THE CONTROL CABLE
I
Step 1
step 3
A shielded control cable is included with the Scada- Form a drip loop in the controlcable where it attaches
Mate Switch forconnection of the switchtothe
to the control uMniat.intain a9-inchminimum radius
communication and control unit. Remove the control when bending the control cable at the d r i p loop and
cable from its shipping carton. Note that the control
at the switch base connection. Adjust the controlcable
cable is provided with a multi-pin connector plug for along the length of the utility pole and form a coil with
a t t a c h m e n tt ot h es w i t c hb a s ea n d
a multi-pin anyexcesscontrolcable(maintaining
a 9-inch
conneetor receptaclefor attachment to the control unit. minimum radius).Secure the contrcoalble to theutility
Locate the receptacle on the back of the switch base, pole using suitable guardsor clamps.
remove the dust cover, and attach the plug from the
control cable. Secure theconnection withthe connector
Step 4
clips. Refer t o S&C Instruction Sheet 768-500. Retain A stainless-steelsecurity belt is includedwith the
the dustcover for future use.
switch-controlpanel-mountstyleconnectorfor
step 2
padlocking the connector at the control unPilta. ce the
securitybeltaroundtheconnector
between the
Remove the dustcover from the connector on the rear connector clips and theenclosure, and inserta padlock
of the communication and control unitenclosure, and (not furnished) through theholes provided.
attach the receptacle from the control cable. Secure
the connection with the connectoclrips. Retain the dust
cover for future use.
IPLACING THE SWITCH CONTROL INTO OPERATION
I
Before energizing the Scada-Mate Switch, make sure
that theswitch base is grounded in accordancewith
the instruction sheet furnishwedith the switch, and
thatthecontrolunitenclosure
is grounded in
accordancewith Step 3 on page 5 of this instruction
sheet. Failure to doso can resultin electrical shock
from inducedvoltages betweenthe switch base and
ground and/orthecontrolunitenclosureand
ground.
Energize the Scada-Mate Switch in accordance with standard operating practices. Place the power switch on the switch control in the "ON" position. Check the
LED indicator on the switch controlto verify that control power is present. When the control unitis first powered-up,themotorinsidethestored-energy mechanismon the Scada-MateSwitchmay begin
charging the spring if itwasnot fully charged. The
stored-energy mechanism can store energy for up to
sixswitchoperations,andthemotor
will take
approximatelyfifteensecondstochargeeach
operation.
Complete the appropriate connections between the user-supplied communication and control unit and the master-station computer. For information on calibrating the voltage and current sensor outputs, refer to Appendix B.
768-580 INSTRUCTION SHEET
Page 6 of 8 October 26,1992
COMELPEACNTYRICS&C S&CCAELNEACDTARIC
0 Chicago LTD. Toronto
Local Electrical Operation
Place the local/remoteswitchon the switch control in the "LOCAL,"position. See Figure 1. Then press the "OPEN" or "CLOSE" pushbutton as appropriate. The interrupter open/closed indicator on the end of the Scada-Mate Switch base indicates interrupter contact position:The target with an "0"indicates that the interrupters are open; the target with a "C" indicates that the interrupters are closed. The indicator does not denote the status of the disconnect. Refer to S&C Instruction Sheet768-500.
Remote Electrical Operation
Place the local/remoteswitch on the switchcontrol in the "REMOTE" position. See Figure 1. TheScadaMate Switch can now only be operated by remote supervisorycontrol.Theinterrupteropen/closed indicator on the end of the Scada-Mate Switch base indicates interrupter contact position: The target with an "0"indicates that the interrupters are open; the target witha "C" indicates that the interrupters are closed. The indicator does not denote the status of the disccmnect. Refer to S&CInstruction Sheet 768-500.
Disconnect Operation
An integral hookstick-operated three-pole disconnect is built into every Scada-Mate Switchto provide visible air-gap isolation of switched-open circuits. First, place the local/remote switch on the switch control in the
"LOCAL"position. See Figure 1. Open the interrupter contacts by pressing the "OPEN"pushbutton. Then open the disconnect by pullingdownon the disconnect operating lever with a suitable hookstickR. efer to S&C Instruction Sheet 768-500. Incidentally, the interruptersare sequenced to mechanically trip before the disconnect opens, thus precluding misoperation if the disconnect is opened without first electrically tripping the interrupters.
Provisions for tagging the three-pole disconnect are provided when the disconnect is in the open position. Refer to s&C Instruction Sheet 768-500.
To close the disconnect, pulldown on the disconnect operating lever (on the other side)with the hookstick. Closing the disconnect does not close the interrupter
contacts. The switch must be closed electricallg i n order to close the interrupter contacts.
The interrupters and terminal pads of the ScadaMate Switch maybe energized withthe interrupters in anyposition. Before inspecting,servicing, or repairing this switch or workinogn the conductors on either side of the switch, test for voltage using proper high-voltage testequipment.Theninstall suitablegroundingequipment.Failure to observe these precautions may result in serious injury or death.
APPENDIX A
I
Catalog Number Description
I
Item
Switch Control-for Incorporation intouser-supphed communication and control unit.Includes swltch control with open/close pushbuttons, localhemote switch, and operation counter. Also Includes terminal strips for connection of external ac control power and dc tripplng power inputs, current sensor outputs (5 amperes ac), voltage sensor output (user-selectable 5 volts ac or 69 volts ac), open/close command inputs, and switch-posttion indication
output. A panel-mount style connector for attachment of the shielded control cable IS also included
Requlres user-supphed 120-volt 60-hertz ac control power and 24-volt dc tripping power (12 amperes for 50 ms)
I Cataloa Number I
5770R1
COMEPLAECNTYRICS&C LTD.CANEALEDCATRICS&C
Chicago Octo0beTroronto
INSTRUCTIONSHEET 768480
Page 7 of 8 26,1992
I S&C Scada-Mate@ SwitchingSystems Switch Control
Outdoor Distribution
~~
APPENDIX 8
Calibrating theVoltage and Current Sensor Outputs
Locate the yellow card included in the "Installation and Operation Information Kit" shipped with the switch. This card contains the precise magnitude ratios and phase-angle shifts of each current sensor and voltage sensor included on the switch.
1. Attach voltmeter probes to Terminals 24 and 26, t o which pole 2 voltage sensor is connected.
2. Place the voltage-sensor outputselector switch on the switch control (located underneath a hole plug on the left side of the switch control cover) in the "5 VAC" position.Measure and record the voltage, V,.
If the yellow cardis not available: The magnitude-ratio and phase-angle shift measurements of the voltage-sensor portion of each S&C
3. Place the voltage-sensor output selector switch on the switch control in the "69VAC"position. Measure and record thevoltage, V,.
Current/Voltage Sensor are also stamped on the leJt 4.Calculate and record thefollowing:
side of the sensor's terminal pad.These measurements
are expressed in the form "V XXxX/XX.X," where the value to the left of the "/" is the magnitude ratio and
Adjusted Pole 2 Voltage Sensor Magnitude =
( ) X (Pole 2 Voltage Sensor Magnitude Ratio)
the value to theright is the phase-angle shift.
The magnitude-ratio and phase-angle shift measurements of each S&C Current Sensor and the current-
where Pole 2 Voltage Sensor Magnitude Ratio is the value written in the tableon the yellow card.A
sensor portionof each S&C CurrentNoltage Sensorare 5 . If the switch is equipped with three-phase voltage
also stamped on theright side of the sensor's terminal
sensing (Catalog Number Suffix "-E3'y: Attach
pad. These measurements are expressed in the form
voltmeter probes to Terminals 23 and 26, to which
"I XXX.X/X.X," where the value tothe leftof the
pole 1 voltage sensor is connected,andrepeat
"/" is the magnitude ratio and the value to the right
Steps 2 through 4for this voltage sensor.Then attach
is the phase-angle shift.
voltmeter probes to Terminals 25 and 26, to which
For RTUs having 5-volt ac voltagesensing inputs: Voltage sensor and current sensor magnitude ratios written on this card can be used directly to calibrate the voltage sensing and current sensing inputs to the RTU.
pole 3 voltage sensor is connected,andrepeat Steps 2 through 4 for this voltage sens0r.A
Current sensor magnituderatioswrittenonthe yellow card canbe used directlyto calibrate the current sensing inputs to theRTU.
Refer to the manufacturer's instructionsfor further information on calibrating the voltage sensing and
current sensing inputs to theRTU. Voltage sensor and currentsensorphase-angleshiftsare generally not required for calibrating transducer-equipped RTUs. Be surethatthe voltage-sensor output selector switch (located underneath a hole plug on the lefl side of the
Refer t o t h e manufacturer's instructions for further information on calibrating the voltage sensing and current sensing inputs to theRTU. Voltage sensor and currentsensor phase-angle shiftsare generally not required for calibrating transducer-equipped RTUs. Be sure that the voltage-sensor output selector switch is in the "69 VAC"positimz a@ calibrating the RTU,
switch control cover) is in the "5 VAC"position a&?calibrating theRTC!
For RTUs having 69-volt ac voltage sensing inputs: Voltagesensor magnitude ratio(s) written on this card do not apply. Eachvoltage sensor magnitude ratio must
S&C Data Sheet 768-93 (furnished) provides additional information on the sensors included with S&C ScadaMate Switches. Refer tothis publication for details regarding specifications and accuraciesof the outputs.
be adjusted to take into account thesensor's nominal
69-volt ac outpuitn these applications, and the adjusted
magnituderatioused to calibrate the corresponding
voltage sensing input to the RTU.
To determine the adjustedvoltage sensor magnitude
ratio(s), the voltage sensor output voltage(s) on the
* Swltch poles are Identified as follows When faclng the mechanism side
terminalstrip of theswitchcontrolneedto measured. The procedure is as follows:
be
o f theswitch,Pole 1 LS on the left, Pole 2 IS In the center, and Pole 3 is on the rght For thetiered-outboardrnountmgconfiguratmn, I'ole 1
is on the top, Pole 2 LS in the center, andPole 3 IS on the bottom
(I
I
7
c
!
C
768-580 INSTRUCTION SHEET
Page 8 of 8 October 26,1992
COMELPEACNTYRICS&C LTSD&.CCAENLAEDCATRIC
Chicago 0 Toronto
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