National Resistors
National Resistors
ISO 9001:2015 Certified
Pune, Maharashtra
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Our range of products include apfc panel, battery discharge resistor, cast iron grid type ngr, earthing resistors, grid type ss wire ngr panel and grounding resistors.
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APFC Panel

APFC Panel
 
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Approx. Rs 2 Lakh / PieceGet Latest Price

Product Details:
Voltage420 V
BrandNational Resistors
PhaseSingle Phase
Power SourceElectric
Frequency50 Hz
IP RatingIP 55

Keeping in mind the requirements of customers, we are involved providing best quality of APFC Panel. These products are offered by us in different sizes and specifications. Moreover, the APFC Panel is extensively used for correcting the power factor of the load and for the improvement of Power Factor. Our products are highly durable in nature. Features:
  • High performance
  • Corrosion Resistant
  • Longer Functional Life
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Battery Discharge Resistor

Battery Discharge Resistor
 
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Approx. Rs 1.75 Lakh / PieceGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
BrandNational Resistors
System Rated Voltage280KV
Frequency50/60 Hz
Weight250 kg
MaterialStainless Steel

Owing to our long time involvement in the domain of manufacturing and supplying a wide range of Battery Discharge Resistor that is of excellent quality. Respected clients can avail our manufactured resistors as per their preferences and requirements by spending only a reasonable amount. Feature:
  • Quality approved
  • Robust size
  • Durable standard
  • Avoid deterioration of battery system due to early detection defective cells
  • Check initial battery performance against manufactures specifications
  • Improve overall health and life of battery system
  • Maximum voltage to minimum voltage of battery required to be discharged
  • Guarantee smooth operation of back up system during emergencies
  • Material of resistor element
  • Temperature rise allowed
  We deals in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates and Middle East Countries.
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Battery Discharge Resistor

Battery Discharge Resistor
 
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Approx. Rs 1.75 Lakh / PieceGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
BrandNational Resistors
System Rated Voltage280KV
Frequency50 Hz
Weight250 kg
MaterialStainless Steel

Battery Discharge Resistor is used for periodical discharge test on station batteries, which is one of the mandatory requirements for users in discharge testing. The test ensures reliability, better service and enhanced life performance of the system. The unit offered by National Resistors is designed to perform periodic discharge tests on station batteries. The battery discharge resistor also includes capacitor discharge resistors, these capacitor discharge resistors has robust assembly of Copper-Nickel Alloy wire grid elements, which are adequately supported on SS tie rods. The unique design of elements in the resistor allows rapid, natural cooling of resistor. Features:
  • High efficiency
  • Optimal performance
  • Durability
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Cast Iron Grid Type NGR

Cast Iron Grid Type NGR
 
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Approx. Rs 2.5 Lakh / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical industry
MaterialCast Iron
Temperature coefficient of resistance0.05% per deg C
Product TypeResistor
IP RatingIP66
Power6.9 kV to 34.5 kV

With the assistance of our diligent team, we are engaged in offering a wide assortment of Cast Iron Grid Type NGR.

Features:
  • Cast Iron Grids are sprayed with Heat Resistant Aluminium Paint to have a heat resistant and anti-corrosive coating
  • A high thermal time constant permits very high currents to pass in Resistors for short time duration
  • Electrical contact surfaces are given a ground finish for better contact between grids to avoid sparking
  • Mica tube is provided as insulation between MS Tie Rod and Grids Mica Washers between alternate grids. Porcelain Insulators are used as back - up insulation between live parts and enclosure in case of high voltages
  • While assembling tapping can be provided between any adjacent grids to have desired sectional resistance values
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Earthing Resistors

Earthing Resistors
 
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Approx. Rs 2.5 Lakh / UnitGet Latest Price

Product Details:
BrandNational Resistors
MaterialWire-wound Resistor
Frequency50 Hz
Voltage TypeAC
ApplicationNeutral to Earth Grounding
Voltage420 V

Earthing Resistors that is manufactured and designed by us comply with the international quality standards. For that matter, our team make use of ultramodern machineries available at our base. Besides, our range has been priced very competitively and requires less maintenance. Feature: 
  • Optimum performance
  • High efficiency
  • Sturdy design
 Product detail:-
  • Rated Current: Means Initial current that will flow through the resistor when it is cold
  • Time Rating : It is length of time for which NGR must tolerate rated voltage.
  • Short Time Rating : Normally it is 10 sec. or 30 sec. or 60 sec. depending on design parameters of protection system
  • Rated Voltage : For neutral grounding / earthing resistor rated voltage means line- to neutral voltage i.e. System Voltage divided by root 3 i.e. 1.732
  • Material of Resistance Element : We offer resistor elements made from any stainless steel or FeCrAl or Cu-Ni or Ni-Cr or any other resistance material as per requirement. Normally formed stainless steel element are best and economical for NGRS
  • Continuous Rating : It is normally 10 % of full load current for healthy system neutral grounding resistor to be designed for continuous rating of 5 % to 10 % of full load current (if required)
  • Temperature Rise Allowed: Normally Temperature rise is restricted to 375 deg.c. above ambient temperature as per BS-587
  • Construction: NGR include resistor assembly, plus required insulators, internal connections and hardware etc
  • Cabling / Termination : Suitable arrangement and clearance is provided for termination of cable, flats or bus duct as per requirement with removable gland plate
 We deals in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates and Middle East Countries.
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Grid Type SS Wire NGR Panel

Grid Type SS Wire NGR Panel
 
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Approx. Rs 1.1 Lakh / PieceGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
Rated Power1KW-10MW
Rated Voltage35KV~0.4KV
Resistance1 ohm~10 M ohm
Tolerance5% and 10%
MaterialStainless Steel

Our organization is engaged in manufacturing a wide range of SS Wire NGR Panel Grid Type.

Features:
  • Rotor volts at standstill
  • Rotor Current at full load
  • Percentage (%) of slip required
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Grounding Resistors

Grounding Resistors
 
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Approx. Rs 2 Lakh / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
MaterialWire-wound Resistor
Resistance50 ohm
Power33 KV
Operating Temperature-20 ~ +70 deg C
Resistance Tolerance+/-5%, +-2%

Quality is the main concern in delivering Grounding Resistors, keeping this in mind we manufacture our product from quality raw material. The purpose of a neutral grounding resistor is to limit the ground fault current to a safe level so that all the electrical equipment in the power system is protected. The resistor should be the only current path between the neutral of power transformers or power generators and ground.

Features:


  • Suitable for printed circuit board
  • Completely insulated resistor
  • Products diversity
We deals in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates and Middle East Countries
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Load Banks

Load Banks
 
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Approx. Rs 3 Lakh / PieceGet Latest Price

Product Details:
BrandNational Resistors
Usage/ApplicationElectrical Industry
Frequency50 Hz
Power SourceElectric
Surface TreatmentGalvanized
MaterialMS
Tolerance5% and 10%

Our esteemed clients are mesmerized by our offerings in the domain of manufacturing and wholesaling a qualitative array of Load Banks. This range is demanded its smooth functioning, user-friendliness, and cost-effectiveness. Moreover, these are manufactured under the supervision of our expert team in order to ensure a genuine range to the clients. Feature:
  • Optimum performance
  • High efficiency
  • Reliable
  • Sturdy design
  • Zinc plated hardware
 We deal in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates and Middle East Countries.
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Load Banks For Generator Testing

Load Banks For Generator Testing
 
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Approx. Rs 3 Lakh / UnitGet Latest Price

Product Details:
BrandNational Resistors
Usage/ApplicationElectrical Industry
Frequency50 Hz
Voltage440V AC
MaterialStainless Steel
Weight30 kg

Our esteemed clients are mesmerized by our offerings in the domain of manufacturing and wholesaling a qualitative array of Load Banks for Generator Testing. This range is demanded for its smooth functioning, user friendliness and cost effectiveness. Power to take control of all load testing requirements. Moreover, these are manufactured under the supervision of our expert team in order to ensure a genuine range to the clients. Feature:
  • Optimum performance
  • High efficiency
  • Reliable
  • Sturdy design

We deals in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates and Middle East Countries.
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Loading Resistor

Loading Resistor
 
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Approx. Rs 80,000 / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
MaterialSS
BrandNational Resistors
Rated voltage rangeFrom to 240v to 72kv
Rated time1 sec to continuous time rating
Rated current rangeFrom 1 amp to 5000 A

Loading Resistor is designed for safe dissipation of maximum output of the power converter, which is in a full load test condition. A load resistor is necessary in testing power converter and other devices under a power load condition, to maintain accuracy and thermal stability in the entire test sequence. High wattage loading resistors offer best power supply solution for manufacturers involved in product life testing and functional testing. The loading resistors are large and bulky but advantageous as it can be easily mounted and wired in different combinations. These resistors should be carefully chosen depending on their non-inductive properties. Features:
  • Longer service life
  • Maintenance free
  • Competitive price
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Motor Starting Resistor

Motor Starting Resistor
 
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Approx. Rs 60,000 / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
Application rating4600 HP/5000 HP
Type of windingSeries
Arm Voltage430 Volts
Frequency50/60 Hz
Motor powerAC

Precisely manufactured in accordance with the organizational guidelines, our range of Starting Resistor is largely demanded by our clients. Available as per their requirements, our range also meets international quality standards. Product Features:
  • Highly reliable
  • Durable standards
  • Robust construction
  • Rotor Current at full load
  • Technology: Thick Film
  • Operating Temperature: C
  • Rotor volts at standstill
  • Duty rating
  • Starting Torque in percentage of full load torque
  • Type of enclosure (Protection Class as per IS-12063)
  • Temperature rise allowed
  • No. of steps, sections and its resistance values per phase
  • Whether terminals should be brought down at one place
  • Details of atmospheric conditions at site
 We deals in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates and Middle East Countrie.
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Neutral Earthing Resistor

Neutral Earthing Resistor
 
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Approx. Rs 2.5 Lakh / UnitGet Latest Price

Product Details:
BrandNational Resistors
Frequency50 Hz
Dimensions1200L x 1200W x 1900H(mm)
InstallationDIP Resistor
MaterialWire-wound Resistor
ResistanceFixed Resistor
TypeLaminated Type

We are engaged in the manufacturing and supplying of Neutral Earthing Resistors.

Three parameters are needed to specify the Earthing Resistor:

  • U rated voltage line to line voltage or system voltage (kV)
  • Rated fault current (a)
  • Rated time (sec) - duration of the fault
  • Resistance value: r =u 1/3

Calculation of hot resistance value:

  • The resistance of resistor element changes to an extent with temperature after rated time. The change may be calculated from the temperature coefficient of resistivity
  • R2 = R (1 + R)
  • R1 = Hot resistance value (q)
  • R1 = Resistance value at ambient temperature (£2)
  • D: = temperature coefficient of resistance material
  • As per ieee-32 for Neutral Earthing Resistor made from Stainless Steel Resistance material, the allowable temperature rise for 1030 or 60 sec time rating is 7600k,6io"k for extended time rating and 385ck for continuous rating
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Neutral Earthing Resistor

Neutral Earthing Resistor
 
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Approx. Rs 2.5 Lakh / UnitGet Latest Price

Product Details:
BrandNational Resistors
MaterialWire-wound Resistor
Frequency50 Hz
InstallationDIP Resistor
Dimensions1200L x 1200W x 1900H(mm)
TypeLaminated Type

Neutral Earthing Resistor (NER) is used to restrict the flow of current during an earth fault on an alternate current distribution system. The resistor is connected between the neural point of a transformer and earth or generator and earth. The neutral earthing resistors (NER) offer dependable protection every time whenever there is a fault. Neutral earthing Resistor (NER) are used in power distribution, mining and industrial installations etc. The resistor is designed to tolerate most hazardous work conditions and atmospheric changes. Neutral Earthing Resistor (NER) is known for durability and reliability. Highlights:
  • Resistance value pre-determined to operate fault-clearing relays and to prevent damages
  • System is designed as per to current and time ratings and compatible with the protection switch gear
  • Resistance value is precise and determined and remains constant throughout life
  • Made from tough steel grids of a high quality iron-chrome-aluminium
  • Non-corroding and offer good stability
  • Mica and ceramic insulators
  • Resistor in fully protected and ventilated steel enclosures
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Neutral Grounding Resistors

Neutral Grounding Resistors
 
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Approx. Rs 2.5 Lakh / PieceGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
BrandNational Resistors
Resistance50 ohm
TechnologyMetal Alloy
Frequency50 Hz
MaterialWire-wound Resistor

Known for its smooth functioning and wide application areas, our range of Neutral Grounding Resistors is extensively demanded and availed by our clients at the most reasonable and competitive prices. Besides, our expert team gives special care to the quality aspects of our offered products. Feature:
  • Robust construction
  • Compact design
  • Durable
 Product detail: 
  • Rated Voltage : For neutral grounding or earthing resistor rated voltage means line- to neutral voltage i.e. System Voltage divided by root 3 i.e. 1.732
  • Rated Current : Means Initial current that will flow through resistor when it is cold. Normally Full load current value is same as Rated current
  • Time Rating : It is length of time for which NGR must tolerate rated voltage
  • Short Time Rating : Normally it is 10 sec. or 30 sec. or 60 sec. depending on design parameters of protection system
  • Continuous Rating : It is normally 10 % of full load current for healthy system neutral grounding resistor to be designed for continuous rating of 5 % to 10 % of full load current
  • Temperature Rise Allowed: Normally Temperature rise is restricted to 375 deg.c. above ambient temperature as per BS-587
  • Cabling or termination : Suitable arrangement and clearance is provided for termination of cable, flats or bus duct as per requirement with removable gland plate
  • Construction: NGR include resistor assembly, plus required insulators, internal connections and hardware etc
  • Material of Resistance Element : We offer resistor elements made from any stainless steel or Cu-Ni or Ni-Cr or any other resistance material as per requirement. Normally formed stainless steel element are best and economical for NGRS
 We deals in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates and Middle East Countrie.
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Punched Grid Stainless Steel Resistor

Punched Grid Stainless Steel Resistor
 
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Approx. Rs 2 Lakh / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
MaterialStainless Steel
BrandNational Resistors
Voltage0.5kv-30kv
Panel15 KV NGR & VC
Frequency50 Hz

Our range of Punched Stainless Steel Grid Resistor is widely used in diversified industries by clients spread all across the globe.
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Punched Neutral Grounding Resistor

Punched Neutral Grounding Resistor
 
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Approx. Rs 2 Lakh / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
BrandNational Resistors
DimensionL820mm W820mm H950mm
Resistance Tolerance+/- 2%
Resistance5.77 ohm
Operating Temperature-35~+40 deg C

To meet the varying demands of our clients, we are engaged in offering a range of quality Punched Neutral Grounding Resistor.
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Punched SS Earthing Resistor

Punched SS Earthing Resistor
 
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Approx. Rs 1.5 Lakh / UnitGet Latest Price

Product Details:
BrandNational Resistors
MaterialSS
Frequency50 Hz
Voltage0.4kv-35kv
Panel11 KV NGR & VC
Motor powerAC

Owing to our technical expertise, we are able to offer a range of Punched SS Earthing Resistor. It is Compact and light in weight for the equivalent current capacity of another type of Grids.
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Punched SS Grid Type NGR

Punched SS Grid Type NGR
 
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Approx. Rs 80,000 / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
Operating Temperature-40~+60 deg C
Maximum Temperature Rise385K
Resistance Tolerance+/-3%
Rated Time0~30s
Rated Frequency50 Hz~60Hz
Relative HumidityLess than 95% (25 degree celsius)

Our range of Punched SS Grid Type NGR is developed from non-breakable steel alloy grids to ensure durability and sturdy construction.
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Punched Stainless Steel Grid Type NGR

Punched Stainless Steel Grid Type NGR
 
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Approx. Rs 2 Lakh / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
Resistance50ohm
Resistance Tolerance5%
Rated Power20kv
Temperature Coefficient500PPM
Operating Temperature20 ~ +40
StandardIEEE32

We are involved in offering a variety of Punched Stainless Steel Grid Type NGR.
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Resistors for Generators

Resistors for Generators
 
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Approx. Rs 2.5 Lakh / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical industry
Current1-2000A
Generator Voltage3-20kv
Resistor Value1-2000ohms
Voltage range230 kV to 36 kV
Insulation level1 kV to 132 kV

We are engaged in manufacturing, supplying and exporting Resistors for Generators. For that matter, our team make use of ultramodern machinery available at our base. Besides, our range has been priced very competitively and requires less maintenance. Feature:
  • Optimum performance
  • High efficiency
  • Sturdy design
 Product detail:-
  • Rated Current : Means Initial current that will flow through resistor when it is cold
  • Time Rating : It is length of time for which NGR must tolerate rated voltage.
  • Short Time Rating : Normally it is 10 sec. or 30 sec. or 60 sec. depending on design parameters of protection system
  • Rated Voltage : For neutral grounding / earthing resistor rated voltage means line- to neutral voltage i.e. System Voltage divided by root 3 i.e. 1.732
  • Material of Resistance Element : We offer resistor elements made from any stainless steel or FeCrAl or Cu-Ni or Ni-Cr or any other resistance material as per requirement. Normally formed stainless steel element are best and economical for NGRS
  • Continuous Rating : It is normally 10 % of full load current for healthy system neutral grounding resistor to be designed for continuous rating of 5 % to 10 % of full load current (if required)
  • Temperature Rise Allowed: Normally Temperature rise is restricted to 375 deg.c. above ambient temperature as per BS-587
  • Construction: NGR include resistor assembly, plus required insulators, internal connections and hardware etc
  • Cabling / Termination : Suitable arrangement and clearance is provided for termination of cable, flats or bus duct as per requirement with removable gland plate

We deals in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates and Middle East Countrie.
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Resistors for Transformers

Resistors for Transformers
 
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Approx. Rs 2.5 Lakh / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
MaterialStainless Steel
Power Range3.3 kv to 22 kv
Rated Voltage1.732 kV
Automatic GradeAutomatic
Rated Frequency50 Hz

Manufacturer, exporter and supplier of Resistors for Transformers by us comply with the international quality standards. For that matter, our team make use of ultramodern machine available at our base. Besides, our range has been priced very competitively and requires less maintenance. Manufacturer, exporter and supplier of Opening Style Current Transformers.  Feature:
  • Optimum performance
  • High efficiency
  • Sturdy design
 Product detail:
  • Rated Current : Means Initial current that will flow through resistor when it is cold
  • Time Rating : It is length of time for which NGR must tolerate rated voltage.
  • Short Time Rating : Normally it is 10 sec. or 30 sec. or 60 sec. depending on design parameters of protection system
  • Rated Voltage : For neutral grounding / earthing resistor rated voltage means line- to neutral voltage i.e. System Voltage divided by root 3 i.e. 1.732
  • Material of Resistance Element : We offer resistor elements made from any stainless steel or FeCrAl or Cu-Ni or Ni-Cr or any other resistance material as per requirement. Normally formed stainless steel element are best and economical for NGRS
  • Continuous Rating : It is normally 10 % of full load current for healthy system neutral grounding resistor to be designed for continuous rating of 5 % to 10 % of full load current (if required)
  • Temperature Rise Allowed: Normally Temperature rise is restricted to 375 deg.c. above ambient temperature as per BS-587
  • Construction: NGR include resistor assembly, plus required insulators, internal connections and hardware etc
  • Cabling / Termination : Suitable arrangement and clearance is provided for termination of cable, flats or bus duct as per requirement with removable gland plate
We deals in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates and Middle East Countries.
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Rod Grid Type Earthing Resistor

Rod Grid Type Earthing Resistor
 
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Approx. Rs 1.5 Lakh / UnitGet Latest Price

Product Details:
BrandNational Resistors
Frequency50 Hz
ApplicationElectrical industry
Power sourceElectric
PhaseSingle Phase
MaterialStainless Steel

The artisan team of our company offers a wide assortment of Rod Grid Type Earthing Resistor.

Features:
  • Having various types of Enclosure facility
  • Can be installed both in Indoor or outdoor locations
  • Duty rating 10 sec., 30 sec., 60 sec., continuous etc
  • Having both system voltage and operating voltage system
  • Grounding Resistor temperature can rise over ambient temperature
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Formed Stainless Steel Grids

Formed Stainless Steel Grids
 
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Approx. Rs 1.5 Lakh / UnitGet Latest Price

Product Details:
BrandNational Resistors
Power SourceElectric
Temperature coefficient of resistance0.15% / c and 0.094%/ c
Thickness0.4-1.0mm
Usage/ApplicationElectric Industry
Zinc coating60-140g/sq.m

We offer the best quality of Formed Stainless Steel Grids.

Features:
  • Grids are formed of AISI - 304/AISI - 410 Stainless Steel material
  • The connection between adjacent grid is done by Arc Welding.
  • Galvanized M.S. washers will be used as space between grid element and the same is insulated from grids by using mica washers.
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Load Banks For UPS

Load Banks For UPS
 
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Approx. Rs 3 Lakh / PieceGet Latest Price

Product Details:
Power SourceElectric
BrandNational Resistors
Frequency50HZ
Load Power40 KVA to 400 KVA
Rated Power415 V
Usage/ApplicationElectrical Industry

Our esteemed clients are mesmerized by our offerings in the domain of manufacturing and wholesaling a qualitative array of Load Banks for UPS. This range is demanded its smooth functioning, user-friendliness, and cost-effectiveness. Moreover, these are manufactured under the supervision of our expert team in order to ensure a genuine range to the clients. The load bank is used in UPS system testing, testing. Feature:
  • Optimum performance
  • High efficiency
  • Reliable
  • Sturdy design
We deal in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates and Middle East Countries.
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Battery Discharge Resistor

Battery Discharge Resistor
 
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Product Details:
Usage/ApplicationElectrical Industrial
MaterialStainless Steel
Voltage280KV
Frequency50 Hz
Tolerance1% , 5%
Weight250 kg

Owing to our long time involvement in the domain of manufacturing and supplying a wide range of Battery Discharge Resistors that is of excellent quality. Respected clients can avail our manufactured resistors as per their preferences and requirements by spending only a reasonable amount. This product is offered at nominal prices which is beneficial for our clients. Features:
  • Quality approved
  • Robust size
  • Durable standard
  • Avoid deterioration of battery system due to early detection defective cells
  • Check initial battery performance against manufactures specifications
  • Improve overall health and life of battery system
  • Maximum voltage to minimum voltage of battery required to be discharged
  • Guarantee smooth operation of back up system during emergencies
  • Material of resistor element
  • Temperature rise allowed
We deals in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates and Middle East Countries.
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Battery Discharge Resistor

Battery Discharge Resistor
 
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Product Details:
Usage/ApplicationElectric Industry
MaterialStainless Steel
Weight250 kg
System Rated Voltage280KV
Frequency50/60 Hz
Power SourceElectric

We have carved a niche amongst the customers for offering large array of Battery Discharge Resistor. The offered product is used in various electronics and electrical industries for their reliability.
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Buffer Resistors

Buffer Resistors
 
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Product Details:
Usage/ApplicationIndustrial
Tolerance5% and 10%
Resistance10K Ohms
Power Ratings10 W
CoreCeramics Steatite or Alumina
Voltage Rating25V

Engaged in offering Buffer Resistors online used in heavy machine applications and are non-corrosive & stable resistors in nature. Ours is a coveted organization that is engaged in manufacturing, supplying and exporting premium quality Buffer Resistors.
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Earth Fault Relay

Earth Fault Relay
 
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Product Details:
Number of Poles2 Pole
Power SourceElectric
Frequency50 Hz
Relay TypeOver Current Relay
Voltage TypeAC
PhaseSingle Phase

We have carved a niche amongst the customers for offering a large array of We have carved a niche amongst the customers for offering a large array of Earth Fault Relay. The offered product is used in various electronics and electrical industries for their reliability. The offered product is used in various electronics and electrical industries for their reliability.
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Electrical Isolators

Electrical Isolators
 
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Product Details:
Mounting TypeVertical
Frequency50 Hz
No. Of Poles3
TypeFixed Resistor
Resistance0.33-1 K
UsageElectrical industry

Electrical Isolators
Supported by our highly qualified and skilled professionals, we have been able to offer our esteemed clients a quality approved range of Electrical Isolators. We execute our manufacturing process by following organization set quality parameters also abide by fair and transparent business policies. Because of this, our products meet with exact demands of our clients. Feature:
  • Smooth operations
  • Low maintenance cost
  • User-friendly
  • High efficiency
  • Durability
  • Single pole and three pole
  • On load and offload
  • Motorized and manual mode of operation
  • Can be mounted on walls, structures or in switchboards
  • High operating reliability
  • Simple maintenance and inspection.
 We deal in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates and Middle East Country.
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High Power Resistor

High Power Resistor
 
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Product Details:
Usage/ApplicationIndustrial
MaterialMild Steel
ShapeU shape
Power Rating5 to 230 Watts
Resistance Range0.5 ~ 30 Ohms
Tolerance5% and 10%

We are one of the most well-distinguished companies in the market that is into offering High Power Resistor.
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High Voltage Isolators

High Voltage Isolators
 
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Product Details:
Mounting TypeVertical
Power33KV
MaterialCeramic and Copper
Phase3
Temperature01C to + 49C
Relative Humidity93%

National Resistors offers Electrical Isolator with voltage ratings up to 33kV and Electrical Isolators resistors are widely used isolating high-voltage equipment. Electrical Isolators ensures the safe functioning of the equipment. The isolators are popular amongst industrial buyers for their uninterrupted performance and ability to withstand high electrical disturbances. The isolators can be custom made to meet the requirement of Horizontal / vertical type, single break, double break, tilting type, rotating type, single/double break consisting of hot-dip galvanized iron base, etc.

Highlights:
  • Type tested at M/S. ERDA, VADODARA.
  • Single pole/Three Pole
  • Offload/On Load
  • Manually operated/motorized operated
  • Compact In Dimensions
  • Sturdy Design of current carrying parts
  • Availability of link drive/Aux. switch for switchboard operation/electrical indications interlock purpose respectively
  • Insulators have high Anti-tracking qualities
  • Can be mounted on walls, structures or in switchboards/panels
  • High operating reliability
  • Simple maintenance inspection
  • Custom built isolator panels with various interlocks are also manufactured suitable for indoor/outdoor Application
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Loading Resistor

Loading Resistor
 
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Product Details:
Usage/ApplicationIndustrial
Stability2%
Power Range10 W to 20 W
Voltage CapacityUp to 25 KV
Surge ResistanceUp to 50 KV
Range1 E to 10 K

We have been offering the matchless collection of Precision Resistor that eradicates varied problems of transitory over, lower voltages, inverse flash, inadequate current flow, and varied other major damages. Our high efficacy resistors For Transformers are designed from high-grade metal strips to avert the failure as well as short-circuit. Our collection is designed to enhance the life and efficacy of the transformers along with ensuring the reliability of electrical systems. With high durability, efficacy, and performance, our collection ensures to protect the Transformers from any kind of burning and damage. We have been offering electrical grade S.S. designed resistors to ensure to keep the resistant value same, even at high temperatures.

Features:
  • Aluminum enclosure instead of MS
  • Cable gland
  • Earth fault leakage Relay
  • Hot dip Galvanized enclosures
  • Neutral Grounding Transformer/Excitation Transformer
  • Potential transformers
  • Safety Screen for enclosures
  • Stainless steel hardware
  • Standoff insulators
  • Supporting Pedestal structures
  • Termination kit

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Resistors For Power Plant

Resistors For Power Plant
 
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Product Details:
Usage/ApplicationElectrical Industry
MaterialSteel
BrandNational Resistors
ShapeRound
Temperature rise375 deg C
Short Time RatingNormally it is 10 sec, 30 sec, 60 sec

Our clients can avail from us a large assortment of Resistors at very affordable prices. Our range of Resistors for Power Plant is extensively demanded and availed by our clients at the most reasonable and competitive prices. Besides, our expert team gives special care to the quality aspects of our offered products.  Feature:
  • Robust construction
  • Compact design
  • Durable
 Product detail:
  • Rated Voltage: For neutral grounding or earthing resistor rated voltage means line- to neutral voltage i.e. System Voltage divided by root 3 i.e. 1.732
  • Rated Current: Means Initial current that will flow through the resistor when it is cold. Normally Full load current value is the same as Rated current
  • Time Rating: It is the length of time for which NGR must tolerate rated voltage
  • Short Time Rating: Normally it is 10 sec. or 30 sec. or 60 sec. depending on the design parameters of the protection system
  • Continuous Rating: It is normally 10 % of full load current for a healthy system neutral grounding resistor to be designed for a continuous rating of 5 % to 10 % of full load current
  • Temperature Rise Allowed: Normally Temperature rise is restricted to 375 deg.c. above ambient temperature as per BS-587
  • Cabling or termination: Suitable arrangement and clearance is provided for termination of cable, flats or bus duct as per requirement with removable gland plate
  • Construction: NGR include resistor assembly, plus required insulators, internal connections and hardware, etc
  • The material of Resistance Element: We offer resistor elements made from any stainless steel or Cu-Ni or Ni-Cr or any other resistance material as per requirement. Normally formed stainless steel element is best and economical for NGRS
We deal in Gulf Countries like Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates and Middle East Country.
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Dynamic Braking Resistors

Dynamic Braking Resistors
 
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Product Details:
Power1000 W
BrandNational Resistors
Temperature Coefficient+/- 250 PPM degree C
Operating Temperature70-250 degree celsius
Tolerance+/-19
Voltage220 to 380 V

We are one of the most well-distinguished companies in the market that is into offering Dynamic Braking Resistors.
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High Power Resistor

High Power Resistor
 
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Product Details:
BrandNational Resistors
Body MaterialMild Steel
Power Rating5 to 230 Watts
Temp Coefficient+/- 60 to 250 PPM
Tolerance5% and 10%
Usage/ApplicationIndustrial

We are one of the most well-distinguished companies in the market that is into offering High Power Resistor.
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