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RESISTANCE BOXES
All the Resistors are assembled on electro plated heavy gauge Steel Tray at both ends and bolted louvered covers at the sides to permit passage of air and a canopy at the top to prevent dirt and rain water from entering the Assembly. The whole assembly is drip proof, IP-23, natural air cooled. Resistors in open execution having IP-00 protection for mounting inside the cubicle of customers can be supplied. Enclosure protection of IP- 33, IP-42 and IP-54 can also be supplied on request at extra cost. The Grids are supported on electro plated steel rods insulated with export quality Mica Tubes. Insulation between grids is by means of Mica Washers. Electrical path between two grids are achieved by means of electro plated steel washers.
STAINLESS STEEL WIRE FORMED GRID RESISTANCE BOX-TYPE : SS

Resistors type ‘SS’ are manufactured from Stainless Steel (AISI 304), wire formed grids making them rustless, unbreakable and light in weight. There is provision at each grid to have a tapping, so that resistance value between steps could be altered.

Following information are required to quote
  • HP/KW of motor
  • Rotor Voltage (RV)
  • Rotor Current (RA)
  • Rating (5mm / 10mm / continuous)
  • Total resistance / phase
  • No. of steps resistances
  • Resistance values at each step
  • IP – Protection required (STD IP-23)
  • Temp. rise required (STD 375º C)
  • Draw-out type consumption required / not required
  • Electrical clearance (25mm standard)
WIRE WOUND GRID RESISTANCE BOX-TYPE : WW

Resistors type ‘WW’ are manufactured with Stainless Steel Wire (AISI 304) having temperature co-efficient of 0.094% per*C wound on Steel Plate with Porcelain Channels at the edges. These Resistors are widely used for Higher Resistances Values, but Low Current.

Following information are required to quote
  • HP/KW of motor
  • Rotor Voltage (RV)
  • Rotor Current (RA)
  • Rating (5mm / 10mm / continuous)
  • Total resistance / phase
  • No. of steps resistances
  • Resistance values at each step
  • IP – Protection required (STD IP-23)
  • Temp. rise required (STD 375º C)
  • Draw-out type consumption required / not required
  • Electrical clearance (25mm standard)
PUNCHED STAINLESS STEEL GRID RESISTANCE BOX-TYPE : PSS

Resistors type 'PSS' are manufactured with grids punched out from Stainless Steel Plate (AISI 304). Each Resistor Grid has provision for termination which helps in changing the step Resistance Values of a given Resistor Assembly with out dismantling the whole assembly. These grids retain the end of the Grids and still remain cool which eliminates the hot spots from developing.

Following information are required to quote
  • HP/KW of motor
  • Rotor Voltage (RV)
  • Rotor Current (RA)
  • Rating (5mm / 10mm / continuous)
  • Total resistance / phase
  • No. of steps resistances
  • Resistance values at each step
  • IP – Protection required (STD IP-23)
  • Temp. rise required (STD 375º C)
  • Draw-out type consumption required / not required
  • Electrical clearance (25mm standard)
PUNCHED FECHRAL GRID RESISTANCE BOX-TYPE : FS

Resistors type ‘FS’ are manufactured with grids punched out of Plates of Steel – Chromium-Aluminium Alloy (widely known as ‘Fe Cr Al’ –AISI 406).

Following information are required to quote
  • HP/KW of motor
  • Rotor Voltage (RV)
  • Rotor Current (RA)
  • Rating (5mm / 10mm / continuous)
  • Total resistance / phase
  • No. of steps resistances
  • Resistance values at each step
  • IP – Protection required (STD IP-23)
  • Temp. rise required (STD 375º C)
  • Draw-out type consumption required / not required
  • Electrical clearance (25mm standard)
NEUTRAL GROUNDING RESISTOR

An Earthing Resistor is primarily a safety device. It drastically reduces shock hazards to personnel and equipment. We have, therefore, developed Earthing Resistors for your benefit. Grids are manufactured from a special alloy of stainless steel which makes them rustless and unbreakable thus eliminating maintenance problem and suitable for installation in outdoor atmosphere.

Following information are required to quote
  • HP/KW of motor
  • Rotor Voltage (RV)
  • Rotor Current (RA)
  • Rating (5mm / 10mm / continuous)
  • Total resistance / phase
  • No. of steps resistances
  • Resistance values at each step
  • IP – Protection required (STD IP-23)
  • Temp. rise required (STD 375º C)
  • Draw-out type consumption required / not required
  • Electrical clearance (25mm standard)
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