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Linear Voltage Regulator

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Linear-Type Voltage Regulators

Linear Voltage Regulators work on the same principle as Servo Voltage Stabilizers.

Output Voltage is monitored continuously and compared to a reference Standard Voltage. The deviation actuates a servo mechanism whereby a small voltage is added or subtracted to Mains Voltage to obtain a stable Output Voltage which remains within ±1 % of the set Output Voltage. Thus for a Mains variation of 300 - 500 Volts (depending on the range of the Linear Voltage Stabilizer), the Output voltage is maintained automatically at 400 ± 1 %.

ieco® Linear Voltage Regulators are predominantly meant for Balanced Mains-Balanced Load type of industrial or large-power installations where equipment is mostly three Phase Machines / Motors. These Regulators have linear auto-variable transformers with Rolling Contact carbon brushes. Linear topology facilitates vertical configuration. As a result, the footprint is small compared to Toroidal type of Servo Voltage Stabilizers.

These Voltage Regulators are meant to be installed on Incoming Mains of Medium to Large Establishments of 50 to 3000 KVA. Once installed on incoming Mains, the Regulator takes care of Voltage Fluctuations 24x7 365 days and protects the Plant / Machines against Malfunction, Breakdown or Overheating. 

Besides providing protection, Linear Voltage Regulator installed on Mains improves Power Factor and MDI, thereby saving on  Energy Bills wherever Mains is beyond ± 5% of 400 Volts. If there is higher deviation in Mains Voltage, substantial savings in Energy Bill is realised.

ieco® Linear Voltage Regulators are designed at Low FLUX & CURRENT Densities, thus improving 

  • Life of the Equipment
  • Overload & Overvoltage Bearing Capacity
  • Energy Efficiency of the Product

By a Unique Design Algorhithm developed by our R&D Engineers - ieco® Linear Voltage Regulators achieve more than 99 % Energy Efficiency.

ieco® Linear Voltage Regulators provide trouble free service year after year without any particular maintenance. 

Three Phase

 
Input Range

360 - 450 V (350 - 460 V)

340 - 460 V (340 - 480 V)

320 - 480 V

300 - 500 V

Bracketed are Custom options
Output Volts

400 V ( 390 - 410 V, Settable)

380 or 415 V on request
Frequency 50 ± 3 Hz
Output Stability ± 1% (No load to full load), Settable
Waveform Distortion Nil
Power Factor Does not introduce any PF
Correction Rate 10 - 15 Volts / sec
Duty Cycle 100 %

 

MAINS SUPPLY                                               INPUT RANGE                               COOLING                          PREFERRED RATINGS

Three Phase

R, Y, B Phase & Neutral

360 - 450 V

(350 - 460 V) 

 Oil cooled

30 KVA to 3000 KVA

(50, 60, 75, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600, 750, 900, 1000, 1200,1500, 1800, 2000, 2500, 3000 KVA)

Three Phase

R, Y, B Phase & Neutral

340 - 460 V

(340 - 480 V) 

 Oil cooled

30 KVA to 2000 KVA

(50, 60, 75, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600, 750, 900, 1000, 1200, 1500, 1800, 2000 KVA)

Three Phase

R, Y, B Phase & Neutral

320 - 480 V

 Oil Cooled

30 KVA to 1500 KVA

(50, 60, 75, 100, 125, 150, 180, 200, 250, 300, 350, 400, 450, 500, 600, 750, 900, 1000, 1200, 1500 KVA)

Three Phase

R, Y, B Phase & Neutral

300 - 500 V

 Oil Cooled

30 KVA to 1200 KVA

(50, 60, 75, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600, 750, 900, 1050, 1200 KVA)

ieco® Linear Voltage Regulators have following superior features and benefits

  • Low Friction - Low Loss special bearing mounted Rolling Contact Carbon Brushes
  • Low electrical density design parameters ensure long life, low carbon footprint, large overload / overvoltage bearing capacity
  • Very high Energy Efficiency - thus saving Energy Costs and improvement in Power Factor
  • Tested to stringent IS 9815:1994 (rev 2009) for conformance and Life durability
  • Reduction in breakdown of Plant, Equipment, Machinery and Process line 24x7 365 days against low and high Mains Voltages
  • Energy Saver Product - qualifies for depreciation benefits under Income Tax Act
  • Low Payback period. Capital cost is recovered within 2-3 years
  • Life is more than 15 years
  • Efficient After Sales service and AMC ensures peaceful nights
  • Custom Input Mains Voltage Ranges available against extra cost

Following Optional Features are available on extra cost

  • Under and Over Voltage Trip Device or Signal
  • Overload Protection through MCB, MCCB, ACB
  • Single & Reverse Phasing Protection
  • On Load Isolation cum Bypass Facility
  • Ammeter to read current on Load
  • Earth Fault, Neutral Fault, Leakage Current Relays
  • Fault Alarms cum Cancellation Facility
  • Automatic Fail Safe Control Phase Selection