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Littelfuse Startco SE-330 Series, Manual

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Littelfuse Startco SE-330 Series Manual Download Page 35

 

 

Page 33 

 SE-330 

Neutral-Grounding-Resistor 

Monitor

 Rev. 

9-A-112913 

 
 

 

a) USING SE-400

NEUTRAL

TO SE-330

TO SENSING

RESISTOR

TERMINAL N

NGR

11

12

OP1

OP2

3

L

L1

5

N

L2

1

SE-400

REMOTE 

INPUT

8

9

RMT1

RMT2

b)  USING SE-100T

NEUTRAL

TO SE-330

TO SENSING 

RESISTOR 

TERMINAL N

NGR

0.65 A

2.75 A

LO

HI

C

L1

L2

L

N 

REMOTE 

TEST

RMT

SE-100T

 

FIGURE 22.  Ground-Fault-Test Circuits. 
 
 

TABLE 4.  G

ROUND

-F

AULT

-T

EST

 R

ECORD

 

D

ATE

 

T

EST

 R

ESULTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Retain this record for the authority having jurisdiction. 

Summary of Contents for SE-330 Series

Page 1: ...4 1 6 1 8 2 0 2 2 2 4 2 6 2 8 3 0 SE 330 NEUTRAL GROUNDING RESISTOR MONITOR 0 2 0 3 0 4 CAL RESET GF TRIP TIME s PULSE PERIOD s GF TRIP LEVEL CT RATING LITTELFUSE STARTCO TRIP GROUND FAULT POWER RELA...

Page 2: ...31 9 1 Resistor Fault Tests 31 9 1 1 Calibration and Open Test 31 9 1 2 Voltage Test 31 9 2 Sensing Resistor Test 31 9 3 Analog Output Test 31 9 4 Ground Fault Performance Test 32 LIST OF FIGURES FIG...

Page 3: ...it difficult to monitor NGR continuity A transformer can provide the inductance necessary to cause ferroresonance if the NGR opens Following these guidelines will reduce the flash hazard reduce point...

Page 4: ...s greater than the time for fault current below the trip level 2 1 2 GF TRIP LEVEL The SE 330 uses a Discrete Fourier Transform DFT algorithm to measure the fundamental component of NGR current Choose...

Page 5: ...200 5 Amperes 400 1 400 5 Amperes 2 4 6 8 10 15 20 40 60 80 100 0 10 0 20 0 30 0 40 0 50 0 75 1 00 2 00 3 00 4 00 5 00 0 60 1 20 1 80 2 40 3 00 4 50 6 00 12 0 18 0 24 0 30 0 5 7 5 10 20 30 40 50 8 10...

Page 6: ...cycled with S8 in the UPGRADE position See Section 4 1 3 2 2 CALIBRATION The SE 330 measures the resistance change of the NGR relative to the NGR resistance value determined at the time of calibration...

Page 7: ...s are shown in Fig 19 Connect them as shown in Fig 3 RK 332 components are not polarity sensitive Network enabled SE 330 s can be remotely tripped and reset by the network master The red DIAGNOSTIC LE...

Page 8: ...erminal blocks Each plug in terminal block can be secured to the monitor by two captive screws for reliable connections Outline dimensions and mounting details for surface mounting the SE 330 are show...

Page 9: ...E SEPARATE LUGTO CONNECT SENSING RESISTORTERMINAL NTO NEUTRAL 2 LOCATETHESE COMPONENTS NEAR TRANSFORMER OR GENERATOR 3 ALTERNATE SENSING RESISTOR TERMINAL N CONNECTION THE NEUTRAL CONNECTION IS NOT MO...

Page 10: ...AR VIEW NOTE 2 92 7 3 65 76 2 3 00 8 2 0 32 186 0 7 32 200 0 7 87 7 0 0 28 R 4 8 0 19 MAXIMUM 4 75 0 187 DIA 4 LOCATIONS PANEL MOUNT CUTOUT NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 SE 330 SHOWN WITH...

Page 11: ...INSTALLATION 1 LOOSEN RETAINER SCREWS MOVE RETAINERS OUTWARD AND TIGHTEN RETAINER SCREWS 2 MATE MONITOR WITH ADAPTER PLUG INTERMINALS LOOSEN RETAINER SCREWSTO LET RETAINERS SNAP OVER MONITOR BACKPLAT...

Page 12: ...00 NOTES 1 DIMENSIONS SHOWN IN MILLIMETRES INCHES 2 SHOWN WITH WEATHERPROOF SNAPS CLOSED 3 REFERTO PANEL MOUNTING CUTOUT FIGURE 4 FOR PANEL MOUNTING DETAIL TO PREVENT UNAUTHORIZED ENTRY 1 USE WIRE SEA...

Page 13: ...MONITOR RELAY THROUGH OPENING OF THE WEATHERPROOF WINDOW UNTIL IT IS SECURELY NESTED TO THE BACK OF THE DARK GREY PVC PANEL INSTALL O RING INTOTHE GROOVE INTHE REAR OF WEATHERPROOF WINDOW ASSEMBLY INS...

Page 14: ...GR s NOTE A parallel ground path created by moisture can result in a false resistor fault trip Sensing resistor terminal R and its connection to SE 330 terminal R including interposing terminal blocks...

Page 15: ...EW 84 6 3 33 120 4 4 74 20 4 0 80 NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 MOUNTING SCREWS M6 OR 0 25 20 120 4 4 74 122 0 4 80 ENCLOSURE TOP VIEW ENCLOSURE TOP VIEW COVER REMOVED 122 0 4 80 120 4 4...

Page 16: ...STRUCTIONS 1 DRILL HOLE FOR ENCLOSURE WIRE ENTRY USE LIQUID TIGHT GLAND 3 ATTACH GROUND WIRE FROM ENCLOSURETO COVER ANDTO ER 600VC 2 REMOVE NYLON NUTS AND WASHERS INSERT ER 600VC INTO ENCLOSURE REPLAC...

Page 17: ...E 254 0 10 00 127 0 5 00 254 0 10 00 355 6 14 00 457 0 18 00 50 7 2 00 MOUNTING DETAIL NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 TERMINAL BLOCK SCREWS 6 32 x 0 25 3 MOUNTING SCREWS M6 OR 0 25 20 4 TH...

Page 18: ...OTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 TERMINAL BLOCK SCREWS 6 32 x 0 25 CABLE ACCESS OPENING IS 1 2 NPT USE A LIQUID TIGHT FITTING FOR CABLE ENTRY 3 MOUNTING SCREWS M6 OR 0 25 20 4 THIS DEVICE CAN...

Page 19: ...4 mA RESISTANCE 100 k THERMAL 1 MINUTE ON 120 MINUTES OFF CONTINUOUS 215 0 8 46 FRONT SIDE 39 5 1 56 444 0 17 50 365 0 14 37 39 5 1 56 MINIMUM DISTANCE TO ADJACENT OBJECTS NOTE 3 MINIMUM CLEARANCE FRO...

Page 20: ...0 Vac MAXIMUM CURRENT 144 mA RESISTANCE 100 k TOP 320 0 12 60 FRONT SIDE 60 0 2 40 800 0 31 50 340 0 13 38 340 0 13 38 534 0 21 00 217 0 8 50 100 0 3 94 NOTE 3 MINIMUM CLEARANCE FROM BASE 508 0 20 00...

Page 21: ...TOP 459 0 18 10 FRONT SIDE 1600 0 63 00 800 0 31 50 MINIMUM CLEARANCE FROM BASE 685 0 27 00 350 0 13 80 400 0 15 70 400 0 15 70 NOTE 3 100 0 3 90 350 0 13 80 MINIMUM DISTANCE TO ADJACENT OBJECTS MOUNT...

Page 22: ...ypically have to be replaced However where replacement is not necessary or possible the CT200 can be connected to either the 1 or 5 A input This CT has a 200 5 current ratio If connected to the 1 A in...

Page 23: ...5 5 0 22 110 0 4 33 5 5 0 22 22 0 0 87 5 0 0 20 RECESSED FOR 8 mm HEX NUT 1 0 0 04 DEEP FRONT NOTES 1 DIMENSIONS IN MILLIMETRES INCHES 2 MOUNTING SCREWS M4 OR 8 32 3 PRESS MOUNTING FEET IN PLACE USIN...

Page 24: ...5 0 22 5 5 0 22 110 0 4 33 FRONT SIDE 22 0 0 87 5 0 0 20 RECESSED FOR 8 mm HEX NUT 1 0 0 04 DEEP 30 0 1 18 126 0 4 96 56 0 2 21 MOUNTING FOOT INSTALLATION TOOL DETAIL A NOTES 1 DIMENSIONS IN MILLIMET...

Page 25: ...2 5 0 0 20 5 0 0 20 58 0 2 28 FRONT 7 0 0 87 4 0 0 16 RECESSED FOR 7 mm HEX NUT 3 0 0 12 DEEP SIDE 26 5 1 04 52 5 2 07 MOUNTING FOOT INSTALLATION TOOL DETAIL A S 1 S 2 P 1 Ground Fault Sensing and Rel...

Page 26: ...esistor and the SE 330 are connected to an isolated ground the SE 330 will be exposed to the GPR If the GPR is greater than the terminal block rating the SE 330 must be isolated from station ground an...

Page 27: ...format of eight data bits and one stop bit The baud rate is fixed at 38 400 bits per second Use PC program SE MON330 to display the following data SE 330 settings and switch states Neutral voltage an...

Page 28: ...RESET to clear the trip If the problem persists consult Littelfuse Startco A D Converter Error Trip DIAGNOSTIC LED flash code L S S S S L An A D converter error was detected Press RESET to clear the t...

Page 29: ...90 Hz Maximum CT lead resistance EFCT SE CS30 5 Other CT s Consult CT Curve CT Input Burden 5 A Input 0 01 1 A Input 0 05 EFCT Input 10 Thermal Withstand 1 A and 5 A Input Continuous 2 x CT Rating 1...

Page 30: ...LR 53428 US C R UL Listed Australia 1 CE European Union 1 1 See Ordering Information 6 2 SENSING RESISTORS ER 600VC Maximum Voltage 600 Vac Maximum Current 30 mA Resistance 20 k Thermal Continuous Shi...

Page 31: ...dow Diameter 26 mm 1 0 Shipping Weight 0 45 kg 1 0 lb Certifications CSA UL CE Compliance RoHS IEC 60044 1 SE CS30 70 Current Ratio 30 0 05 A Insulation 600 V Class Window Diameter 70 mm 2 7 Shipping...

Page 32: ...vailable at www littelfuse com relayscontrols 8 WARRANTY The SE 330 Neutral Grounding Resistor Monitor is warranted to be free from defects in material and workmanship for a period of five years from...

Page 33: ...e trip voltage at terminal N not terminal R Procedure Check the ER sensing resistor connection to the SE 330 Disconnect the wire from sensing resistor terminal N A resistor fault trip will occur Set t...

Page 34: ...alternate ground paths do not exist that bypass the current transformer High voltage testers and resistance bridges can be used to determine the existence of alternate ground paths d Verify proper rea...

Page 35: ...11 12 OP1 OP2 3 L L1 5 N L2 1 SE 400 REMOTE INPUT 8 9 RMT1 RMT2 b USING SE 100T NEUTRAL TO SE 330 TO SENSING RESISTOR TERMINAL N NGR 0 65 A 2 75 A LO HI C L1 L2 L N REMOTE TEST RMT SE 100T FIGURE 22 G...

Page 36: ...Page 34 SE 330 Neutral Grounding Resistor Monitor Rev 9 A 112913 This page intentionally left blank...

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