NEELAM Digital Microprocessor Based 3
PHASE Unbalanced Servo Voltage Stabilizer

NEELAM DIGITAL MICRO PROCESSOR BASED servo voltage stabilizers /regulators are permanent solutions for voltage fluctuations or say unbalanced voltages .Now a days ,automation in every industries is in full swing & that makes a sense to get TRUE POWER for such sophisticated instruments to increase the life of equipment & to minimize the breakdowns.Also POWER SAVING concept is involved where higher voltage is observed.

NEELAM Digital Micro processor based Servo Voltage stabilizers serves following purposes:

Increased life of Induction MOTORS due to balance voltage

• Another cost of operating on unbalanced voltage is reduced motor life. Recall that operating with a voltage unbalance greater than 1% will increase the I2R losses in the rotor and stator, causing the motor to run hotter. Since every 10°C increase in temperature cuts the insulation life in half. Factor in replacement or repair costs for premature motor failures, unscheduled downtime, and lost production, and the true cost of unbalanced voltage can be much higher than the cost of the wasted electricity-possibly as high as a factor of 10. Due to balanced voltage , Increase of life of motors to more than 20 years instead of 3-4 years .It is a big savings.
  
  

  Effect of Unbalance voltages on AC DRIVES

• Due to unbalance voltage rectifier as well as Inverter section of AC DRIVES are damaged & may lead to a permanent failure.
  
  

  Effect of unbalance voltage on mechanical parts

• Due to high voltage , bearings in moving parts like in induction motors gets heated up due to Increased temperature of windings .High degree of temperature of bearing leads to expansion Of bearing balls & so ageing in balls in turn increases the frequency of replacement of bearings in induction motors.
  
  

  Minimum failure of Computer & Electronic based Sophisticated instruments

• Major advantage of balance voltage is changes in AC input voltage beyond permissible range to Computer & electronic based sophisticated instrument damages important circuits & components also due to ageing effect on components overall functionality & result of output will be deviated .So now a days Stabilizer is a compulsion for such instruments & applications. e.g CNC /VMC machines etc.

HOW IT SAVES POWER ?

3 Phase Induction motors run on 415 Volts AC ,any higher than this voltage makes an iron loss & that decreases efficiency & consumes more POWER proportionately .Also at higher voltage slippage loss of motor becomes prominent .Overall Power is wasted .Balance voltage saves power.

SALIENT FEATURES OF NEELAM Digital Microprocessor Based Stabilizer

• Each phase Voltage is controlled by separate motorized-transformers to ensure desired output. Use of high grade copper wires ,Balancing INPUT unbalanced voltages of each phase
• Stabilized output with +/- 1% ,Each phase Voltage is controlled by Micro Processor based control card perfectly ,so Consistent & proven performance for long time .
Cont.. overleaf
• In ANALOG cards due to ageing effect consistency in performance is badly affected. Routine checkup of performance of all functions are required for ANALOG Card based stabilizer while for MICRO PROCESSOR based ,it is not required.
• Minimum time to repair due to Single Board Technology. Digital display of all Input/Output Parameters .4 Line LCD display. Individual message for each fault .Not possible in analog cards efficiency 98% ,by using high grade laminations and electrolytic grade copper wires. Pure Sinusoidal wave form ,no distortion.
• By pass switch in off mode available in higher KVA

Input Voltage : 340-480 Volts 3 Phase 4 wire-system, Output voltage : 415 V / +/- -5 to 1%

Rate of correction : 35 Volts to 100 Volts /Second, Response time :10 m sec

Efficiency : >=98%,Waveform distortion : NIL-Sinusoidal

Effect of power Factor : NIL,Temperature 0-48 degree Centigrade

Protection : Short circuit ,Electronic Overload cutoff,Line Noise & surge suppression network ,Single Phase preventer, Auto High/Low voltage cut off , Overload current tripping.

Construction : Metal powder coated rugged body

Display : 4 Line LCD display .Input /Output Voltages :RY,YB,RB & RN,YN,BN Input Range .Cutoff voltage & current. Fault line display : Overload,Under voltage,Over Voltage,Shor circuit,Phase not available

Physical Dimension

Typical applications

CNC /VMC Machines , Plastic Moulding Machines ,Color labs,PLC,Die making machines, Medical InstrumentsElevators ,Diamond cutting machines, Texturising Machines, Factory Stabilizer

Manufacurer : Neelam Micro Electronics 2nd floor,Shree Commercial Bldg Above Sanjay Art,Dr. Yagnik Road

Rajkot : 360 001

Ph : (0281) 2468840, 3017459

Email : neelammicro@yahoo.co.in

M. : 9824042405

Surat office M. : 9825843018

Other Products : Single Phase Stabilizer/Inverters/Isolation Transformers/Auto Transformers