National Resistors
National Resistors
ISO 9001:2015 Certified
Pune, Maharashtra
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Our product range includes a wide range of rod grid type ngr, speed control resistor, speed control resistor for ac and dc drives, stainless steel grid type earthing resistor, stainless steel grid type ngr and starting resistor for slippering motors.
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Rod Grid Type NGR

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

Product Details:
Usage/ApplicationElectrical Industry
Rated Voltage35KV~0.4KV
Rated frequency50/60Hz
Rated current75A/150A/225A/300A
Protection LevelIP20-IP55
MaterialStainless Steel

Being an industry leader we offer Rod Grid Type NGR to our clients.
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Speed Control Resistor

Speed Control Resistor
 
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Approx. Rs 80,000 / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
BrandNational Resistors
Rating2 min, 5min, 10min
Frequency50 Hz
Power SourceElectric
MaterialStainless steel and cast iron

We, manufacturer, Speed Control Resistor for A.C and D.C motor speed control according to customer requirements.
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Speed Control Resistor

Speed Control Resistor
 
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Approx. Rs 80,000 / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
MaterialStainless Steel
BrandNational Resistors
Range99 Deg. C to +199 Deg. C
Resolution1 Degree C
Frequency50/60 Hz

We are counted among the leading manufacturers and wholesalers of an exclusive range of Speed Control Resistor. This range manufactured by our team has been able to meet the expectations of our clients and followed demands for our range is very high. Addition to that, our range is quality approved and has high efficiency as well. Feature:
  • Compact design
  • Reliable performance
  • Competitively priced
  • Rotor volts at standstill
  • Rotor Current at full load
  • IPSS-1-10-002-82 with amendment no.1 and BS 587 for starting, speed control resistor
  • IS 2147 IS 12063 of 1987 for degree of protection for enclosure
  • IS 5 for paint shade
 Tests:
  • Routine Tests: - Following tests will be conducted
  • Visual and dimensional
  • Resistance value measurement with ± 10 % tolerance
  • H.V. Test of twice the rated voltage +1000 volts for voltage class below 660 volts
  • Insulation resistance value measurement by using 500 V meager
  • Percentage (%) of slip required
 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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Speed Control Resistor for AC and DC Drives

Speed Control Resistor for AC and DC Drives
 
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Approx. Rs 60,000 / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
Input Value230 V
Automation GradeSemi-Automatic, Automatic
Output Current8.6~32 A
Input PhaseSingle & Three Phase
DisplayDigital

We are counted among the leading manufacturers and wholesalers of an exclusive range of Speed Control Resistor for AC and DC Drives. This range manufactured by our team has been able to meet the expectations of our clients and followed demands for our range is very high. Addition to that, our range is quality approved and has high efficiency as well. our range is quality approved and has high efficiency as well Feature:
  • Compact design
  • Reliable performance
  • Competitively priced
  • Rotor volts at standstill
  • Rotor Current at full load
  • IPSS-1-10-002-82 with amendment no.1 and BS 587 for starting, speed control resistor
  • IS 2147 IS 12063 of 1987 for degree of protection for enclosure
  • IS 5 for paint shade

Tests:
  • Routine Tests: - Following tests will be conducted
  • Visual and dimensional
  • Resistance value measurement with ± 10 % tolerance
  • H.V. Test of twice the rated voltage +1000 volts for voltage class below 660 volts
  • Insulation resistance value measurement by using 500 V meager
  • Percentage (%) of slip required
 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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Stainless Steel Grid Type Earthing Resistor

Stainless Steel Grid Type Earthing Resistor
 
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Approx. Rs 1.05 Lakh / UnitGet Latest Price

Product Details:
MaterialStainless Steel
Frequency50 Hz
Temperature coefficient of resistance0.16% / 0c and 0.095%/ 0c
UsageElectrical industry
Power SourceElectrical
Power11 Kw

Our team of well versed and dedicated professionals, we offer a wide array of Stainless Steel Grid Type Earthing Resistor.
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Stainless Steel Grid Type NGR

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

Product Details:
Usage/ApplicationElectrical industry
Frequency50 Hz
Temperature coefficient of resistance0.15% / 0c and 0.094%/ 0c
TypeGrid type Resistor
Stability2%
MaterialStainless steel AISI-304/AISI-410

We present a wide array of premium quality Formed Stainless Steel Grid Type NGR.

Features:
  • Connection between adjacent Grid is done by Arc Welding
  • Galvanised M.S. Washers will be used as spacer between Grid element and the same is insulated from Grids by using Mica Washers
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Starting Resistor For Slippering Motors

Starting Resistor For Slippering Motors
 
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Approx. Rs 60,000 / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
Resistive Values1 ohm to 200 ohm
Dielectric Strength2.5 kV AC / 1 min
Operating Voltage1000 VAC / 1100 VDC
Frequency Range50 Hz to 60 Hz
Resistance Tolerance+/-5%

Precisely manufactured in accordance with the organizational guidelines, our range of Starting Resistor for Slippering Motors is largely demanded by our clients. Available as per their requirements, our range also meets international quality standards. In addition to this, clients can avail the offered range from us at cost-effective prices. Furthermore, our products are known for the below mentioned feature:
  • 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
 Material of Resistor
  • 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 the site
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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Transformers Neutral Grounding Resistor

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

Product Details:
Usage/ApplicationElectrical Industry
BrandNational Resistors
Rated Power800W
Temperature Coefficient1
Operating Temperature-40~+40 degree celsius
AltitudeAbove 3000m

Transformers Neutral Grounding Resistor

Features:

  • Safety Screen for enclosures
  • Potential transformers
  • Neutral Grounding Transformer / Excitation Transformer
  • Supporting Pedestal structures
  • Stand-off insulators
  • Aluminum enclosure instead of MS
  • Hot Dip Galvanized enclosures
  • Stainless steel hardware
  • Earth fault leakage Relay
  • Termination kit
  • Cable gland
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UPS Testing Loading NGR

UPS Testing Loading NGR
 
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Approx. Rs 3 Lakh / UnitGet Latest Price

Product Details:
Load Capacity<50 T
Test Pit Size3 x Plate Size
Hydraulic Jack Capacity50 to 75 T
Frequency50 Hz
Weight68 kg
Output Voltage220V AC +/- 2%
Phases3

We are one of the most well-distinguished companies in the market that is into offering UPS Testing Loading NGR.
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Wire Grid Type NGR

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

Product Details:
Usage/ApplicationElectrical Industry
Full load current10%
Temperature375 degree celsius
Tolerance5% and 10%
Resistance Range0.1 ~ 20 Ohms
MaterialStainless Steel

We provide an exclusive range of Wire-Grid Type NGR.

Features :
  • 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)
  • The 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 is best and economical for NGRS
  • Temperature Rise Allowed: Normally Temperature rise is restricted to 375 deg.c. above ambient temperature as per BS-587. It can be 760 deg.c. as per IEEE-32. It can be offered of any other temperature rise as per customer's requirement
  • Construction: NGR includes resistor assembly, plus required insulators, internal connections and hardware etc
  • Cabling / Termination: Suitable arrangement and clearance are provided for termination of cable, flats or bus duct as per requirement with undrilled removable gland plate
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Wire Wound Grid Type Neutral Grounding Resistor

Wire Wound Grid Type Neutral Grounding Resistor
 
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Approx. Rs 60,000 / UnitGet Latest Price

Product Details:
Usage/ApplicationElectrical Industry
System Voltage1.732 V
Temperature375 deg.c
Full load current5% and 10%
Frequency50 Hz
MaterialStainless steel

Wire Wound Grid Type Neutral Grounding Resistor

Attributes:
  • These Resistors are economical for low current
  • Available in ratings of 1Amp and above
  • Resistance wire is wound on Ceramic Insulator to form a Coil for Wire wound
  • Mapping can be taken at any place

Features:
  • Resistance Wire is wound on Ceramic Insulator to form a Coil for Wire wound
  • Tapping can be taken at any place
  • These Resistors are economical for low current
  • Available in ratings of 1Amp and above
  • Dissipation is negligible the temperature rise for the resistor element depends on its capacity to store the energy generated in proportion to the mass specific heat of the material used. These NGRS are connected between the neutral point of transformer/generator the earth.
  • In Earth, fault condition the Restricted earth fault current passes through the Metallic Resistor protecting the system till automatic protection takes place by absorbing the earth
  • Line to neutral voltage rate
  • Normally Full load current rate is same
  • Initial current flow through resistors when it is cold
  • Time length rate for NGR must tolerate rated voltage.
  • NGR construction includes resistor assembly, internal connections, plus required insulators, etc.
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Find Us Vishwanath Jetithor (Partner) Shop No. 26, Jijamata Market, G Block, MIDC, Shahu Nagar, Chinchwad, Pune - 411019, Maharashtra, India
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