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Neutral Grounding Resistors by Filnor, Inc

Neutral Grounding Resistors are used to protect power transformers, power generators and other associated equipment in your power systems against 50/60 Hz faults (short circuit) and transient phenomena (lightning).
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NEUTRAL GROUNDING RESISTORS

 
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Neutral Grounding Resistor


filnor literature Neutral Grounding Resistors

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227 N. Freedom
Alliance, Ohio 44601, U.S.A.
Phone: 330-821-7667
Fax: 330-829-3175
info@filnor.com
 
PROTECT YOUR POWER DISTRIBUTION EQUIPMENT

Filnor, Inc. is the reliability leader in the power resistor industry. We provide complete technical assistance in order to meet your specifications. Filnor resistors are used for AC/DC motor acceleration, dynamic braking, ballast, load bank, neutral grounding resistors, harmonic filtering, and transit applications.

neutral grounding resistor
FNG20000-200-10 Neutral Grounding Resistor
20000 Volt System, 11600 Volt Line to Neutral, 200 Ampere, 10 Second, 200:5 CT Option with Dust Filters and Side Neutral Bushing

neutral grounding resistors

FNG12470-400-10FNG13800-50-10 Neutral Grounding Resistor
13800 Volt System, 8000 Volt Line to Neutral, 50 Ampere, 10 Second, 50:1 CT Option

neutral grounding resistor
FNG13800-400-10 Neutral Grounding Resistor
13800 Volt System, 8000 Volt Line to Neutral, 400 Ampere, 10 Second, with Zig Zag Transformer, Severe Weather Enclosure

Neutral Grounding Resistors

Neutral Grounding Resistor
13.8kV System, 8kV Line to Neutral, 400 Ampere, 10 Second, with Side Neutral & Ground Bushings


Ordering Information Required

NEUTRAL GROUNDING RESISTORS

• Rated voltage line to neutral or system voltage
• Rated fault current
• Rated “time on” of the line to neutral voltage
• Enclosure type (NEMA 1 or NEMA 3R)


View Filnor's Standard Neutral Grounding Resistors

FUNCTION
Neutral Grounding Resistors are used to protect power transformers, power generators and other associated equipment in your power systems against 50/60 Hz faults (short circuit) and transient phenomena (lightning).

SPECIFICATIONS
There are three parameters needed to specify the neutral grounding resistor.
1. Rated voltage line to neutral or system voltage
2. Rated fault current
3. Rated “time on” of the line to neutral voltage not exceeding the allowable temperature rise.

RANGE
• Rated current: from 1 amp to 5000 A
• Rated voltage: from 0.38 to 34.5kV
• Rated time: 1 sec to continuous time rating

TESTING AND QUALITY
All Filnor Neutral Grounding Resistors are designed, rated, manufactured and tested in strict compliance with IEEE-32. Routine tests performed on each Neutral Grounding Resistor are measurement of resistance, high voltage power frequency, insulation measurement, aspect verification, dimensional control. Filnor’s internal quality system has been developed and certified under ISO 9001 quality system.

CONSTRUCTION
Standard unit includes the stainless steel resistor assembly plus all the required insulators, internal connections and hardware installed in a standard safety enclosure. Neutral Grounding Resistor units are completely assembled, prewired, and tested at our facility. For shipping all units are crated for added protection and ease of handling.

ENCLOSURE FEATURES
• Solid overhung top slightly sloped to prevent standing water and will support heavy ice and snow.
• Forged eyebolts in all four corners for easy hoisting.
• Removable front and rear louvered covers for easy access for connection and inspection.
• Corrosion resistant nameplate provides complete ratings and manufacturers information.
• Mill galvinized finish provides maximum protection.
• Bottom screening prevents the entry of birds and rodents while providing maximum cooling for the resistors.

ENCLOSURE OPTIONS
• Mill galvanized, aluminum, stainless steel and hot-dipped galvanized construction. Custom paint finish is available.
• Top or side mounted entrance bushing(s).
• Screened covers for indoor applications.
• Support stands for elevating the enclosure above ground.

OPTIONS
• Current or potential transformers mounted and prewired at our facility
• ON or OFF Load disconnecting switches
• Space heater
• Specially designed units for hazardous or high altitude locations

neutral grounding resistor

High Resistance Neutral Grounding Detection System
480 Volt AC, 5 Ampere Maximum
neutral grounding resistor
FNG4160-25-C Neutral Grounding Resistor
4160 Volt System, 2400 V Line to Neutral, 25 Ampere, Continuous, 200:5 CT Option with Support Stand
filnor neutral grounding resistors
FNG4160-800-10 Neutral Grounding Resistor
4160 Volt System, 2400 Volt Line to Neutral, 800 Ampere, 10 Seconds
 



Standard Units:

•   Designed and Tested to IEEE-32 Standard
•   Space for Current Transformer
•   Enclosure: Nema 3R Outdoor Mill Galvinized Finish
•   Internal Terminal Connections


FILNOR INC. DESIGNS AND BUILDS NEUTRAL GROUNDING RESISTORS UP TO 72kV AND 5000 AMPS


filnor neutral grounding resistors FILNOR NEUTRAL GROUNDING RESISTORS MOST COMMON SIZES filnor neutral grounding resistors
2400 System Voltage – 1390 Line to Neutral – 10 second Time On
Catalog Number Unit Ohms Initial Amps Dimensions (W" x D" x H") Approx Weight Quick Quote
FNG2400-10-10 138.56 10 36 x 36 x 24 250
FNG2400-50-10 27.71 50 36 x 36 x 24 280
FNG2400-100-10 13.86 100 36 x 36 x 24 310
FNG2400-200-10 6.93 200 36 x 36 x 24 320
FNG2400-300-10 4.62 300 36 x 36 x 24 330
FNG2400-400-10 3.46 400 36 x 36 x 24 340
FNG2400-500-10 2.77 500 36 x 36 x 24 350
FNG2400-600-10 2.31 600 36 x 36 x 24 360
FNG2400-800-10 1.73 800 36 x 36 x 24 380
FNG2400-1000-10 1.39 1000 36 x 36 x 24 400
4160 System Voltage – 2400 Line to Neutral – 10 second Time On
Catalog Number Unit Ohms Initial Amps Dimensions (W" x D" x H") Approx Weight Quick Quote
FNG4160-10-10 240.18 10 36 x 36 x 24 350
FNG4160-50-10 48.04 50 36 x 36 x 24 400
FNG4160-100-10 24.02 100 36 x 36 x 24 450
FNG4160-200-10 12.01 200 36 x 36 x 32 460
FNG4160-300-10 8.01 300 36 x 36 x 32 470
FNG4160-400-10 6 400 36 x 36 x 32 480
FNG4160-500-10 4.8 500 36 x 36 x 32 500
FNG4160-600-10 6 600 36 x 36 x 32 510
FNG4160-800-10 3 800 36 x 36 x 32 520
FNG4160-1000-10 2.4 1000 36 x 36 x 32 530
7200 System Voltage –4160 Line to Neutral – 10 second Time On
Catalog Number Unit Ohms Initial Amps Dimensions (W" x D" x H") Approx Weight Quick Quote
FNG7200-10-10 415.69 10 36 x 36 x 32 450
FNG7200-50-10 83.14 50 36 x 36 x 32 550
FNG7200-100-10 41.57 100 42 x 46 x 42 610
FNG7200-200-10 20.78 200 42 x 46 x 42 620
FNG7200-300-10 13.86 300 42 x 46 x 42 630
FNG7200-400-10 10.39 400 42 x 46 x 42 640
FNG7200-500-10 8.31 500 42 x 46 x 42 650
FNG7200-600-10 6.93 600 42 x 46 x 42 660
FNG7200-800-10 5.20 800 42 x 46 x 42 670
FNG7200-1000-10 4.16 1000 42 x 46 x 42 680
13800 System Voltage – 8000 Line to Neutral – 10 second Time On
Catalog Number Unit Ohms Initial Amps Dimensions (W" x D" x H") Approx Weight Quick Quote
FNG13800-10-10 796.74 10 42 x 46 x 42 600
FNG13800-50-10 159.35 50 42 x 46 x 42 750
FNG13800-100-10 79.67 100 42 x 46 x 58 810
FNG13800-200-10 39.84 200 42 x 46 x 58 820
FNG13800-300-10 26.56 300 42 x 46 x 58 830
FNG13800-400-10 19.92 400 42 x 46 x 58 840
FNG13800-500-10 15.93 500 42 x 46 x 58 850
FNG13800-600-10 13.28 600 42 x 46 x 58 860
FNG13800-800-10 9.96 800 42 x 46 x 58 870
FNG13800-1000-10 7.97 1000 42 x 46 x 58 880
480 System Voltage – 277 Line to Neutral – Continuous Rated
Catalog Number Unit Ohms Initial Amps Dimensions (W" x D" x H") Approx Weight Quick Quote
FNG480-5-C 55.43 5 27 x 15 x 8 50
FNG480-10-C 27.71 10 27 x 45 x 8 60
FNG480-25-C 11.09 25 27 x 15 x 8 110
2400 System Voltage – 1390 Line to Neutral – Continuous rated
Catalog Number Unit Ohms Initial Amps Dimensions (W" x D" x H") Approx Weight Quick Quote
FNG2400-10-C 138.56 10 42 x 46 x 42 410
FNG2400-25-C 55.43 25 42 x 46 x 58 550
FNG2400-50-C 27.71 50 42 x 46 x 58 610
Options: Please contact us for more details.
       Aluminum, Stainless Steel, or Special Paint Finishes.        Space Heater
       Current Transformer        Elevating Stands
       Potential Transformers        Units design for hazardous or high altitude locations.
       Entrance Bushings        Seismic Qualified Units
       Disconnect Switches        Special ratings not listed.
neutral grounding resistor   neutral grounding resistors


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