Other Products / Services #4073154

Precision engineered Disconnect Panels are offerd with requisite mechanical and electrical interlocking. The disconnect panels are ideal for connecting and disconnecting of AC current between on and off conditions. The panels provide a compact solution for power circuit protection. Disconnect Panels come with factory-set disconnect voltages and these can be manually adjusted in the field, to suffice requirements.

Isolator Panels from National Resistors have effective functioning and longer service life. These are ideal for use in ceiling & sidewall panel, sensitive equipment, entertainment and audio equipment. The panel is made for consistent performance over a high range of temperature and are available in different specifications.

Our capacious warehouse is installed with all required amenities essential for safe storage of the products. Furthermore, our warehousing system is efficiently managed by our team of experts. We have achieved great heights of success by providing top-notch array of Neutral Side Cubicles. The offered Neutral Side Cubicles is made of stainless steel and available in size 1400x1450x1500mm.

Phase side Cubicles offered are made as per the application it is put to. These cubicles feature effective functioning and require very low maintenance. The design of phase side cubicles depends on voltage level of the generator and the type of bus duct system between generator and step up transformer of the power plant. The phase side cubicles undergo functional testing of the complete assembled panel; continuity test and test on wiring; and the HV test, to ascertain their compliance to performance & safety standards.

With the assistance of our team of professionals, we are engaged in providing an assorted range of Formed Steel Grid. Steel grid offered by us is manufactured employing excellent quality steel in line with international market standards. Provided steel grid is mainly used in electrical circuits as spacer between grid element. The offered steel grid is provided in various specifications and can be customized also as per the requirements of the clients. This Formed Steel Grid is strictly tested on several quality parameters prior to dispatch.

• Grids are formed of AISI - 304/AISI - 410 Stainless Steel material
• Temperature coefficient of resistance is 0.15% / c for AISI-410 & 0.094%/ c for AISI-304.
• Connection between adjacent grid is done by Arc Welding.
• Galvanized M.S. washers will be used as spacer between grid element and the same is insulated from grids by using mica washers.
• Specifications:
• 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.
• Any other standard as required can also be followed.

Backed by the rich industry experience, we are providing excellent range of Cast Iron Type NGR. Provided product is manufactured at our hi-tech manufacturing unit in relevance to the international quality standards utilizing superior quality raw material. The offered product finds application in power generation plants for earthing applications and helps in protecting sparks. Also, our quality controllers examine it on varied quality standards to ascertain its flawlessness. In order to fulfill the changing needs of the clients, this Cast Iron Type NGR is available in different specifications.

• Having excellent high thermal time constant permits
• With heat resistant and anti-corrosive coating system
• Porcelain Insulators as back in case of high voltages
• Suitable for high currents to pass in Resistors within short time durations
• Grids are temperature coefficient of resistance is 0.05% per oC Approx. for Cast Iron
• Having good ground finishing contact surfaces for better contact between grids for avoiding sparking
• Provide Mica tube that act as an insulation system between MS Tie Rod and Grids and also incase of Mica Washers between alternate grids

Being a quality centric enterprise, we are engaged in offering a wide range of top grade Disconnect panels. These panels are manufactured using quality tested components and cutting edge techniques under the diligent professionals supervision. To isolate and avoid short circuit in different electrical appliances, the provided panels are extensively used in various power plant, chemical, food and beverage industries. Moreover, our valued clients can avail the offered Electric Disconnect panels at market leading prices.

• Shockproof
• Less maintenance
• Longer functional life
• Perfect finish

• Brand: National Resistors
• Phase: Single Phase
• Operation on AC Current
• Manual Adjustment Possible

Our firm is dedicatedly engaged in manufacturing, supplying and exporting Battery Discharge Resistors Unit. These resistors consist of Copper Nickel alloy wire grid elements that are supported on MS tie rods. Offered resistors are designed and developed so as to provide natural and rapid cooling of resistors bank. Moreover, these resistors are convenient to install and are designed to support various panels in different industries worldwide. Valued patrons can avail Battery Discharge Resistors Unit from us at most affordable prices, ensuring safe transit.

• Discharge cycle tests help the users to:
• Checking the initial battery performances.
• Avoid deterioration of battery systems due to early detection defective cells
• During emergencies guarantee smooth operation of back up systems
• Suitable for improving overall health and life of battery systems.
• Constant Current and Rate of Discharge: D.C contractors / Circuit breakers or knife edge switches are used for switching depending on clients preference. The Rate of Discharge can be accurately controlled and monitored in this system which is can be accurately controlled and monitored in this system which has distinct advantage over other conventional methods of Discharge.

• Maximum voltage to minimum voltage of battery required to be discharged.
• Current steps required for each step of discharge voltage.
• Material of resistor element.
• Temperature rise allowed.
• Ratings: AC & DC Load Banks are manufactured as per customers requirement in various ratings ranging from 1 KW to 3000 KW.
• (Optional) High Temperature Limit Thermostat for resistance elements, Thermal overload for each fan and overflow switches are provided.
• Construction: Hot dip galvanized frames fitted with galvanized steel if required otherwise heat resistance aluminium paints are used. All hardware is zinc plated. Stainless Steel hardware is used if required. Frames can be custom made also.

Owing to our expertise, we bring forth and exclusive range of Resistive Load Banks. Designed and manufactured by our adroit professionals using high quality raw material and progressive technology in accordance with the requirements of the clients. Provided load banks are available in varied specifications as per the application requirement of the clients and are mainly used to develop electrical load. Offered load banks are controlled with the help of control devices for any heavy application. Furthermore, our clients can avail these Resistive Load Banks from us at affordable prices.

• Easy installation
• Optimum performance
• Robust construction
• Long service life

Owing to our years of industry experience, we have carved out an outstanding position as the foremost manufacturer and supplier of a wide range of Neutral Isolator Panels (NIS). These panels are perfect for power and to prevent the electric motor from the hazards of overloads. We manufacture this panel using supreme grade raw material and ultra-modern techniques in sync with the international standards of quality and design. Owing to their perfect finish and robust construction, these Neutral Isolator Panels (NIS) are widely demanded in the electrical industry.

• Durable finish standards
• Shock resistant properties
• Easy installation
• Trouble free performance
• Neutral Isolator Panels
• HT indoor isolators of following rating
• 3.3 KV / 6.6 KV/ 12 KV / 22 KV / 33 KV.
• 400 Amp./630 Amp./1200 Amp./1800 Amp./3200 Amp.

Type tested at M/S. ERDA, VADODARASingle pole / Three poleOn load / Off loadMotorised / Manual mode of operationAvailability of link drive / Aux. switch for switchboard operation / electrical indications and interlock purpose respectivelyCan be mounted on walls, structures or in switchboards / panelsHigh operating reliabilitySimple maintenance and inspectionUsed mechanically strong fiberglass link instead of epoxy link to avoid regular problem of breakage of epoxy link at site.Custom built isolator panels with various interlocks are also manufactured suitable for indoor / outdoor Applications

• National Resistors offers 33 KV isolators with voltage ratings upto 33 Kv and these resistors are widely used isolating high-voltage equipment. The isolator 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.

• HT indoor isolators of following rating :
• A) 3.3 KV / 6.6 KV/ 12 KV / 22 KV / 33 KV.
• B) 400 Amp./630 Amp./1200 Amp./1800 Amp./3200 Amp.

Since inception, our company is counted among the prime manufacturers of OFF-Load Indoor Panel Mounted Isolator. The range of isolators is designed from the best available raw materials using modern production machines and technologies. The range is designed from the shock proof body to ensure maximum durability along with minimum maintenance. Excellent thermal isolation and vibration free features of the collection ensure its long lasting excellent performance. Simple to install, easy to maintain and rigid structure are some of the striking factors of the product that make it highly popular in the market. Our range is designed in different sizes and dimensions according to the needs of the patrons to fulfill their precise demands at very lowest prices within the stipulated time frame.

We are manufacturing, exporting and supplying an extensive range of Punched Stainless Steel Grids. These grids are manufactured under the stern vigilance of our dexterous professionals using outstanding grade stainless steel with the aid of modish techniques at our well-maintained production unit. The offered grids are tested on various parameters to assure their performance. Besides, we provide these Punched Stainless Steel Grids to our valued patrons at the most negotiable rates.

• Temperature resistance
• Ruggedness
• Anti-corrosive body
• Accurate dimension

• Grids are punched out of AISI 304/AISI 430 type stainless steel sheets or AISI-406 i.e. FeCrAl Sheets.
• Temperature coefficient of resistance is 0.094% per degree C for stainless steel AISI-304 & 0.15% per oC for AISI - 430 & 0.019% per oC for FeCrAl i.e. AISI-406.
• Connection between the adjacent grids can be following type:
• Adjacent grids will be connected by using galvanized Nut-Bolts using spring washers.
• With Tig welded joints, which are totally secured against intense vibration.
• Terminals can be brought down at the bottom for ease of connection if asked.
• Each grid element is supported on Tie rods. Hence the assembly of resistance unit becomes very sturdy and it can absorb intense vibrations. Grids are insulated from M.S.tie rod by using Mica tube.
• Galvanised/Aluminium pipe/MS Washers will be provided as spacer between grid elements and the same will be insulated from grids by using Mica washers.
• These grids have wide range of current rating varying from 10 Amps to 200 Amps.

The manufacturing companies develop a variety of power generation industry products, like resistors, isolators, load banks, isolator panels, etc. The motorised isolator panel are used for keeping safe indoor isolators. The company develops its products from its factory in Shelarwasti, Chikhli, Maharashtra. The frame of the panel is developed with high grade metal which is coated with paint to keep it protected and corrosion resistant. The motorised isolator panel is an enclosed panel with three doors. The panels we supply have passed through the tests conducted in-house by experts. The ISO 9001:2008 certified company follows quality control measures throughout the production process. It delivers the isolator panels along with their manuals and test certificate. The interested buyers can contact us today.

NIS panels are used alongside neutral isolators. The manufacturing and supplying company also designs 33 KV NIS panels with voltage ratings upto 33KV. The cubicle of the NIS made of steel has an isolated switch, CTs, gland plate, etc. Such panels that are developed in-house undergo several tests, like vibration, rain, hygroscopic, etc., and those that pass through such tests and manual inspections are considered ready to deliver products. The ISO 9001:2008 certified company also keeps a stock of such panels to meet the urgent requirements of clients. The options available with these panels are single pole or three pole, vertical or horizontal type, on load or off load, motorised or manual mode of operation, mount options, etc. Send us inquiries if you want a 33 KV NIS panel in the electrical industry.

Grounding is done to protect the overcurrent devices from fire and shock as well as prevent unwanted voltage on non-current-carrying metal objects. National Resistors is a leading manufacturer of power generation industry products. It serves the requirements of several industries, like cement, power utility, oil & gas, electricity generation, transmission and distribution, etc. One such product provided by the company is Neutral grounding panel, mainly used for transformer neutral earthing and general neutral earthing. This panel is designed in a way to deliver high performance, efficacy in functionality and require low maintenance. The buyers looking for neutral grounding panel that can easily be installed int their set-up can contact us. Apart from standard design, the engineers ate our company can also make certain changes as per their requirements

The company produces reliable neutral isolator panels in Chikhli, Maharashtra, India; for the worldwide market. Adept professionals in high tech production units fabricate these panels, which are used for the protection of electric motor against hazards of overloads. Apart from routine tests, these panels undergo vibration, rain and hygroscopic tests. The neutral isolator panel housed in a cubicle adjacent to NGR cubicle, comprises an isolating switch and CTs, as required. It uses fibre glass link, which is mechanically strong and prevents regular problem of breakage at site. This isolator panel can be custom built and provided with several interlocks.

• Easy to mount on walls, structures or in switchboards
• Durable finish and shock proof
• High operating reliability
• Trouble free performance
• Requires less maintenance
• Suitable for indoor / outdoor applications

• 3.3 / 6.6 / 12 / 22 / 33 KV.
• 400 /630 /1200 /1800 /3200 Amp.
• Single pole or three pole
• On or Off load
• Manual or motorized mode of operation