Littelfuse Startco SE-325 Скачать руководство пользователя страница 1 | Manualshive

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Littelfuse Startco SE-325 Скачать руководство пользователя страница 1

SE-325 MANUAL

NEUTRAL-GROUNDING-RESISTOR MONITOR

MAY 6, 2008

REVISION 10

F 1

R E S E T

P O W E R

G R O U N D

F A U L T

GF TRIP

TIME (s)

R E S I STO R

F A U L T

RES TRIP

LEVEL (VAC)

CT1 CT2 A

B

R I

G I

S W

L 1

R

L 2

G

STARTCO

E N G I N E E R I N G L T D .

NGR MONITOR

SE-325

MODE R E S

G F

2 0

4 0 0

2 0 0

0 . 1

2 . 0

1 . 0

4.0 A

2.0 A

0.5 A

S H

U V 2 0 K

Copyright

©

2008 by Startco Engineering Ltd.

All rights reserved.

Publication: SE-325-M
Document: S95-C325-00000
Printed in Canada.

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Содержание SE-325

Страница 1: ...s RESI STOR FAULT RES TRIP LEVEL VAC CT1 CT2 A B RI GI SW L1 R L2 G STARTCO E N G I N E E R I N G L T D NGR MONITOR SE 325 MODE RES GF 20 400 200 0 1 2 0 1 0 4 0 A 2 0 A 0 5 A SH UV 20K Copyright 200...

Страница 2: ...This page intentionally left blank...

Страница 3: ...ty 14 7 Test Procedures 15 7 1 Ground Fault Performance Test 15 7 2 Resistor Fault Tests 16 7 2 1 Open Test 16 7 2 2 Voltage Test 16 7 3 Sensing Resistor Test 16 LIST OF FIGURES FIGURE PAGE 1 Typical...

Страница 4: ...Startco Engineering Ltd Page ii SE 325 Neutral Grounding Resistor Monitor Rev 0 Pub SE 325 M May 6 2008 This page intentionally left blank...

Страница 5: ...otection inoperative Transformer inrush current up to twelve times rated current can cause a ground fault voltage larger than expected A parallel transformer winding makes it difficult to monitor NGR...

Страница 6: ...lue of the ground fault circuit Typical values for 5 15 and 25 A tripping systems are shown in Table 1 For others systems refer to the NGR Monitor Set Point Assistant at www startco ca 2 2 INDICATION...

Страница 7: ...GROUND FAULT INDICATOR RESET SWITCH REMOTE INDICATION AND RESET RED RED F1 RESET POWER GROUND FAULT GF TRIP TIME s RESI STOR FAULT RES TRIP LEVEL VAC CT1 CT2 A B RI GI SW L1 R L2 G STARTCO E N G I N...

Страница 8: ...AL BLOCK COVER REMOVED MINIMUM CLEARANCE FOR FUSE REMOVAL 109 0 4 29 3 50 5 50 5 90 88 9 139 7 150 0 4 8 0 19 DIA 100 0 3 93 3 06 77 8 F1 RESET POWER GROUND FAULT GF TRIP TIME s RESI STOR FAULT RES TR...

Страница 9: ...nection to the SE 325 is not polarity sensitive Ground one side of the CT secondary For electrically noisy environments or lead lengths in excess of 10 m 30 ft use shielded twisted pair cable D A E B...

Страница 10: ...resistor connection is not a neutral conductor as defined in Canadian Electrical Code Section 10 1108 and National Electrical Code Section 250 36 B It is not required to be 8 AWG or larger Since curre...

Страница 11: ...ON MAY BE REMOVED FOR DIELECTRIC STRENGTH TESTING ENSURE THAT THE JUMPER IS INSTALLED AFTER TESTING ON REV 0 1 UNITS SCREW IS NOT PRESENT AND BASE IS ELECTRICALLY CONNECTED TO TERMINAL G 316 0 G R 188...

Страница 12: ...0 0 90 0 5 67 8 46 3 53 11 00 3 94 3 53 FRONT MOUNTING DETAIL SIDE NOTES TOP 444 0 17 50 14 37 1 56 1 56 365 0 39 5 39 5 MINIMUM DISTANCE TO ADJACENT OBJECTS NOTE 3 1 DIMENSIONS IN MILLIMETRES INCHES...

Страница 13: ...ENTRY NOTE 3 MINIMUM DISTANCE TO ADJACENT OBJECTS 320 12 6 FRONT SIDE N STARTCO E N G I N E E R I N G L T D MADE IN SASKATOON CANADA VOLTAGE AT TERMINAL N RISES TO LINE TO NEUTRAL VOLTAGE WHEN A GROUN...

Страница 14: ...IGHTS 36 6 1 44 17 3 0 68 29 9 1 17 43 5 1 71 PUSH BUTTON 36 6 1 44 14 9 0 59 29 9 1 17 43 5 1 71 FIGURE 8 RK 302 Remote Indication and Reset NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 NEMA 1 FRONT VI...

Страница 15: ...2 5 I 3 0 0 1 1 8 25 0 0 98 CI RI GI OUTLINE NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 NEMA 1 FIGURE 10 RK 325I Remote Indication Assembly 60 2 31 0 47 5 21 0 2 37 1 22 1 87 0 83 R S 1 R S 2 C G I G...

Страница 16: ...he RK 302 RK 325 and RK 325I See Figs 1 and 11 Contact K1 closes when the Ground Fault LED is on and contact K2 closes when the Resistor Fault LED is on 3 7 GROUND FAULT TESTING Use CT primary current...

Страница 17: ...004 Operating Mode UV Fail Safe or SH Non Fail Safe Remote Indication 12 Vdc GI RI Current Sink 560 Internal Optional RK 13 Module Contact Ratings 100 mA 120 Vac Contact Configuration N O Form A Reset...

Страница 18: ...ation and Reset Assembly RK 325I Indication Assembly RK 13 Relay Interface Module 6 WARRANTY The SE 325 Neutral Grounding Resistor Monitor is warranted to be free from defects in material and workmans...

Страница 19: ...bridges can be used to determine the existence of alternate ground paths d Verify proper reaction of the circuit interrupting device in response to a simulated or controlled ground fault current To si...

Страница 20: ...LED should be off 7 2 2 VOLTAGE TEST Test Equipment 0 to 120 Vac voltage source and multimeter NOTE Applying the test voltage to the R and G terminals will damage the SE 325 and the ER sensing resist...

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