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TO  172838 

5.1 .4  Potential  T ransformer's Ratio 

-

Some systems may 

include optional, user-provided potential transformers. Their 
ratios  must  be  taken  into  account  by  means  of  settings  on 
Switch 

SW2,  Nos.  1,  2,  3 and 

4, 

as listed in Table 5.8. 

When external potential transformers are used,  calculate 

the secondary output level of the transformers by dividing 
the nominal voltage input to the PT's primary side by the 
turns  ratio.  The  result  must  be  120  VAC,  measured 
line-to-line. 

Examples: 

1. 4160 Volt System: Select a potential transformer with a 

4160/120  ratio 

35/1.  Therefore,  set  switch SW2  for 

35:1  ratio. 

2. 3300 Volt System: Select a potential transformer with a 

3600/120  ratio 

30/1.  Therefore,  set switch  SW2 for 

30:1  ratio. 

If  potential transformers are not used,  select a ratio of  1:1. 

5.1.5  3 Wire/4 Wire Line-

The IQ Data can be used to mon­

itor either a  3-conductor or 4-conductor AC line.  An example 
of a 4-wire system is a case in which a transformer's secon­

dary is wired in a wye configuration with the G  neutral termi­

nal ground  brought  out  as  the  fourth  wire.  In  this  case  the 
G  fourth wire connects with the Neutral Terminal on  the IQ 

Data's  chassis.  (See  Figure  2. 1A.) 

Switch 

SW2,  No. 

must be set to correspond to the chosen 

wiring configuration. Set this switch to the: 

• 

OFF position for a 4-wire  wiring  configuration 

• 

ON position for  a 3-wire  wiring  configuration 

When the OFF position is selected for the 3-wire configuration, 

the Display  Window does not display the 3 line-to-neutral 

AC 

line  measurements  of  the  Operator  Panel's  menu.  The 
measurements not  displayed  are: 

• 

VA-N  Volts  RMS 

• 

s-N 

Volts  RMS 

• 

V C-N  Volts  RMS 

5.1.6  AC  Line Voltage-

The 

10 

Data can be set to meas­

ure  AC  line  voltage in  one  of  two  ways: 

21 

IQ  DATA 

• 

Line-to-line - 3  Phase  3  Wire 

• 

Line-to-neutral - 3  Phase 4  Wire 

Table  5.8 

PT  RATIO  SET TINGS 

SW2 

Switch  Settings 

PT 

Ratio 

1: 1 

(1) 

ON 

ON 

ON 

ON 

2:1 

OFF 

ON 

ON 

ON 

4: 1 

ON 

OFF 

ON 

ON 

5:1 

OFF 

OFF 

ON 

ON 

20:1 

ON 

ON 

OFF 

ON 

30:1 

OFF 

ON 

OFF 

ON 

35: 1 

ON 

OFF 

OFF 

ON 

40:1 

OFF 

OFF 

OFF 

ON 

55: 1 

ON 

ON 

ON 

OFF 

60:1 

OFF 

ON 

ON 

OFF 

70:1 

ON 

OFF 

ON 

OFF 

100:1 

OFF 

OFF 

ON 

OFF 

120:1 

ON 

ON 

OFF 

OFF 

120:1 

ON 

ON 

OFF 

OFF 

Any other  combinations 

(1l 

Required  setting  when  no 

PT 

used. 

Note that the settings of these potential transformers' switches 

allow  the  IQ Data  to  calculate and  display  the  original,  un­
reduced line voltage even though the level at the AC Line Con­
nection  Terminals  is  reduced  with  an  external  potential 

transformer. 

5.1.7  Display Volts-

The 

A

C line-to-line voltages and the 

3 AC line-to-neutral voltages which appear in the Display Win­

dow are auto ranged  to represent  units of kilovolts or  volts. 

Shaded  area  designates  information  that 

replaces  or  supplements  applications  using 

the  3-phase  Power  Module. 

www 

. ElectricalPartManuals 

. com 

Summary of Contents for IQ DATA

Page 1: ...Effective April 1991 IQ DATA LINE METERING SYSTEM USER S MANUAL Westinghouse TO 172838 ELECTRICAL COMPONENTS DIVISION w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 2: ...ctions If further information is desired by purchaser regarding his particular installation operation or maintenance of his equipment the local Westinghouse Electric Corporation representative should be contacted Westinghouse Electric Corporation Distribution and Control Business Unit Electrical Components Division Pittsburgh PA 15220 IQ DATA w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 3: ...hassis Cutout Dimensions 1 2 Figure 4 2 4 3 4 4 4 5 4 6 6 1 LIST OF TABLES Title Page IQ Data Features and Benefits 5 Communication Arrangements 5 General Specifications 8 Metering Specifications 9 Metered Values 1 1 2 Table 4 A 5 A 5 B A 7 B TO 172838 Title Page Voltage Selector Jumper 13 Wiring 14 DIP Switch Settings 18 Initial Startup 18 Before Power Application 18 Initial Power Application 18 ...

Page 4: ... are installed correctly for your application see Paragraph 2 1 2 item 3 page 7 Connect the 120 240 VAC control power to the unit at terminals 7 and 10 When DlP switcheshavebeen verified apply controlpowerto the unit G s W r w f rur t AgJo i t r cCuses Utd it CM JfJJI1 c ciQ ttJ clips Pb i Pr lemsc ara I IC wn fu Q i tha have shakE n loo iotransit 7 If you think a problem exists check the voltage ...

Page 5: ...a three phase Power Module Power for this device is derived from the line being monitored Since the 10 Data has only two models and very few external options individualizing for an application is performed in the field by the user OEM Users choose and enter the specifica tions for the individual setpoints by setting a series of DIP switches Nospecialized programming language is necessary 1 1 Featu...

Page 6: ...ory repairs Table 1 A IQ DATA FEATURES AND BENEFITS Feature Benefit Microprocessor based control Reliable service without the need for numerous exter nal measuring instruments Two models Ease of purchasing stocking In many cases eliminates external transformers Simplified wiring Simplified programming No special languages to learn Standard cutout One hole to cut Interchangeability with IQ Data Plu...

Page 7: ...nted through a cutout in a panel This will generally be a cabinet s face or door Rear access area Par 2 1 2 External hardware Par 2 1 3 2 DDDDDDD D DDDDDD r I FIELD SE T TABLE OPTIONAL POWER MODULE 0 CONNECTION lr UNUSE D IN tt g _j JJ 0 STA NDARD 1J OPERATION O l Q r 1 1 CURRE NT TRANSFORMER 1 JH CONNECTIONS I 0 DIP SWITCHE S VOLTAGE T ERMINAL BLOCK 0 f reo COMMUNICATION 120 240 VAC rn t CONTROL ...

Page 8: ...g items 1 The 3 phase line voltage connects to the unit on the right side of the unit These contacts can accept an input from 120 volts to 600 volts without external potential trans formers Phase A B C and Neutral 2 Connections from the 3 required external current trans formers are made at the Current Transformer Terminal Block located on the left side of the chassis 3 The 9 pin connector on the u...

Page 9: ... S 0 n 3 o s tnO c s r r Sa 6 72 3 24 WITH COMMUNICATION CARD PONI 50 PWR MOD FACEPLATE ND CARD r 2 04 1 WITHOUT Jl HOU S E M T r 1 VOLTAGE R s o ooa BBBB ov _ QVB c O e STEP ov _ D QVC N CURRENT s o _ o nooo LJUUU 0 0 01c STEP 10 26 I I H 1 IB fm L 0 CJ I CJ J 1 X c v OJ w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Page 10: ...ties withe eh Of the3 inooming AC l ines Theiusesare 1 4 Amp 600 volt 200 kA interrupting rating Thesefusesare h1teroaHQ the Power MQdiJle and canbe a QQessedby re movingthethreescrewsholdingthe coverin place See Figure 4 S IfitiS necessarytoreplaoe fuses maltesureallvoltagehas been removedirom the IQ Databefore removing replacingthefuses IQ DATA 2 1 3 External Hardware Each IQ Data requires curre...

Page 11: ...STINGHOUSE IQ DATA RMS Volts O KiloVolts STEP TO 172838 item is shown in the Display Window For example while the VAa LED is illuminated the STEP pushbutton is pressed once Immediately the LED next to Vac lights and a new value is shown in the Display Window Table 3 A contains a description of each of the 9 items that can be displayed 3 2 LEOs The Operator Panel LEOs are divided into 2 types 3 2 1...

Page 12: ...currents 18 Amps RMS KAmps xx xx lc Amps RMS 1 These values are skipped automatically with systems which do not wire the neutral line to the Neutral Terminal of the IQ Data The blanking occurs when position 8 of SW1 is set for the 3 wire position 3 2 2 Units LEOs Auto range units for monitoring Units and K ILO Units will be displayed until a value above 9999 is reached 11 3 3 Display Windows The t...

Page 13: ...ions for this cutout along with the location of 6 mounting holes are shown in Figure 4 1 Before actually cutting the panel be sure that the required 3 dimensional clearances for the IQ Data chas sis allow mounting in the desired location Clearances are shown in Figure 2 2 It is necessary to hold fairly close to tolerances when mak ing the cutout and placing the holes for the mounting screws In par...

Page 14: ... it separately from the chassiS be sure that The location allows for a cable connection betWeen the JQ Data chassis and Power Module by meansof the 36 in 91 4 em Extension Cable Option The separated Power Module can physically fit in the 13 location desired See clearance dimensions in Figure 4 2 Usethe Module as a drilling temPJateat t h Jde red location The two 8032 S rews can be u aed to remount...

Page 15: ...is 600 volts or less 3 The wires connecting to the IQ Data must not be larger than AWG No 14 Larger wires will not connect properly with the various terminal blocks 4 Wiring between the current transformers and the IQ Data should be kept as short as possible 200 feet max Also whenever possible route these lines away from other AC lines and inductive devices If the lines must cross other AC lines p...

Page 16: ...8 Figure 4 4A Wiring Diagram 3 PHASE 3 WIRE ABOVE 600 VOLTS 2CT S WITH IQ DATA EXTERNAL POTENTIAL TRANSFORMERS CURRENT TRANSFORMERS lCT rr c 2CT 11 rr LOAD T1 T2 T3 LINE lOAD r r TI IQ DATA ll d ITO OPE DELT FUSE VA 120 OR 240 VM GND CONTROL P0W R I I I o 3 5 0 0 ll It Glf IB IC 7 8 9 10 2 4 6 SE LABEL FOR 120 240 JUIAPERS L IQ DATA GNO STAND ALONE APPLICATION 0 0 0 l 0 0 0 0 IIA 11 t GIIII 8 9 10...

Page 17: ... SAM POIENI l J 3 1Ht I H IERWINAL fOR Fl RTH R D TAILS SEE 5EC1101 4 2 5 0 0 0 0 IC 7 a 9 10 z IQ DATA TO 172838 lOAD T1 T2 T3 N STANO ALONE APPLICATION 3 PHASE POWER MODULE APPLICATION B J Figure 4 4C Wiring Diagram 3 PHASE 4 WIRE ABOVE 600 VOLTS EXTERNAL POTENTIAL TRANSFORMERS CURRENT TRANSFORMERS 1CT II E 2CT 11 c 3CT r J LOAD T1 T2 T3 N liNE LOAD t TI TJ N WYE n J J FUSE I I J 5 VA w IC Cl lA...

Page 18: ...gure 4 4E Wiring Diagram 3 PHASE 3 WIRE ABOVE 600 VOLTS EXTERNAL POTENTIAL TRANSFORMERS CURRENT TRANSFORMERS LINE A lU u r t i2 L2 Bt ppt f 2 CT _ I i2 3CT n E GNO 120 OR 240 VIC CONlRDl POWER I I I I J 5 0 0 VA t Gl lA 18 IC 7 8 9 10 2 O o 6O SEE LASH fOR I I I 120 240 JUWPERS IQ DATA STAND ALONE APPLICATION Figure 4 4F Wiring Diagram 10 DATA Shaded area designates information that replaces or su...

Page 19: ...The following startup procedures must be performed only by qualified personnel who are familiar with the 10 Data and its associated electrical and or mechanical equipment Failure to observe this caution can result in serious or even fatal personal injury and or equipment damage 4 4 1 Before Power Application Before applying AC power to the 10 Data perform the following D Verify that the incoming A...

Page 20: ...ions Description The ratio of the external current transformers Refer to Table 5 A page 20 Unused Unused Line frequency ON 60 Hz OFF 50 Hz Potential transformers if used Refer to Table 5 8 page 21 Unused Unused Unused AC line wiring OFF 4 wire ON 3 wire 19 Shaded area designates information that replaces or supplements applications using the 3 phase Power Module w w w E l e c t r i c a l P a r t M...

Page 21: ...user provided external current transformers can vary from 25 5 to 5000 5 Switch SW1 Nos 1 thru 5 must be set to correspond to the external current transformer s ratio as listed in Table 5 A 5 1 2 Display Current The AC line current level appear ing in the Display Window is auto ranged to represent amperes to kiloamperes 5 1 3 Line Frequency The IQ Data can accept a line fre quency of either 50 or ...

Page 22: ... for a 4 wire wiring configuration ON position for a 3 wire wiring configuration When the OFF position is selected for the 3 wire configuration the Display Window does not display the 3 line to neutral AC line measurements of the Operator Panel s menu The measurements not displayed are VA N Volts RMS Vs N Volts RMS VC N Volts RMS 5 1 6 AC Line Voltage The 10 Data can be set to meas ure AC line vol...

Page 23: ... levels in a data table which is a solid state mem AC line voltage AC line current 1 1 1 L i n e i n t e r f a c e I Microprocessor I Executive program I Data table TO 172838 ory device The actual signals from the AC line are con ditioned by various circuits grouped together here and referred to simply as the line interface Updating the Operator Panel on a regular basis When a component of the Pan...

Page 24: ...ata is not operating properly after AC power is first applied The procedures assume that All steps listed in Paragraphs 4 4 1 and 4 4 2 have been completed and One or both display windows do not display values and or the lA AMPS RMS LED or VAB VOLTS RMS LED are not lit Shaded area designates information that replaces or supplements applications using the 3 phase Power Module 23 Replace unit See Pa...

Page 25: ... correctly performed Make a sketch to help with the task of terminal and wire identification Step 3 If an optional module connects with the Communi cations Port carefully unplug it The connectors may be screwed together Step 5 Loosen each screw terminal or nut where there is 24 a wire connection Remove the associated wire Step 6 Remove the 6 mounting screws holding the unit against the door or pan...

Page 26: ...Name Title _ _ _ _ _ _ _ _ _ _ _ _ _ _ Company_______________ Phone_ _ _ _ _ _ _ _ _ _ _ _ ___ Street and Number City _________ State _________ Zip _ _ _ _ _ _ _ _ _ Just fill in above and drop this card in the mail No postage needed Information Request D Please send me updated application materials when available D Please send me information on D Please have a Sales Engineer call D Please contact...

Page 27: ... 111M 38 v l SOd JN 8111A84S v 91 ON l WJ8d SS81 J SJ J l l v II J Ald3CJ SS3 N ISn8 1 11 1 i I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 Westinghouse Electric Corporation 5 Parkway Center Pittsburgh PA 15220 ATTN COMMUNICATION PRODUCTS MARKETING PLACE STAMP HERE I I I I I I I I I I I I I I I I I I I I I I I I I w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

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