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3714 Kinnear Place Saskatoon, SK Canada S7P 0A6 Ph: (306) 373-5505 Fx: (306) 374-2245 www.littelfuse.com/relayscontrols

SE-330 MANUAL

NEUTRAL-GROUNDING-RESISTOR MONITOR

REVISION

9-A-112913

0.1

0.5 0.7 1.0

2.0

3.0

5.0

10.0

100

1.0

1.2

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

RELAY K1

DIAGNOSTIC

CALIBRATED

TRIP

RESISTOR

FAULT

170

130

200

340

800

100

1200

1700

2000

V TRIP LEVEL

(

)

20 K

V x 1

100 K

V x 5



2013 Littelfuse Startco

Publication: SE-330-M
Document: S95-C330-00000
Printed in Canada.

Содержание SE-330 Series

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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