ALOHA TECHNOCRATS

Electromech Power Products


Aloha is a transparent manufacturing & trading providing highly competitive, faster and professional services. It facilitates a smooth flow of goods from the producers to the customers, giving value to all. We meet business challenges innovatively and pride in our ears on the ground thus responding proactively to our customers' problems in current volatile markets.

Servo Stabilizer ( Single Phase )




Parameter Specification
Input Voltage 170-270V AC, 50 Hz
Output Voltage 230V AC 50 Hz 1 Phase
Output Voltage Adjustments 220-240 AC in 1 Phase
Operating Frequency 47 to 53 Hz
Output Regulation + 1%
Correction Speed 35V / Sec
Line Regulation + 1%
Load Regulation + 1%
Wave-form Distortion Nil
Power Factor Effect Nil
Output Wave - Form Real Reproduction of Input
Type of Cooling Natural Air-cooled
Mode of System Fully Automatic
Efficiency 98.5 %
Response Time 10 Milli Sec.
Servo Motor Drive Rugged AC step Synchronous Motor

Display

Seven Segment Digital Display

Input Connection

1.2 & 3 KVA - Power Card With Plug Top
5 KVA & Above -Connectors

Input Connection

1.2 & 3 KVA-Sockets
5 KVA & Above -Connectors

Protection

High Voltage Protection - With Relay / Contactor

Low Voltage Protection - With Relay / Contactor

Overload Protection - With Relay / Contactor With MCB

Short Circuit Protection - With Relay / Contactor With MCB

Neutral Cut

Indication On Front Panel (LED)

Input ON

Output ON

Output CUT-OFF

Input LOW

Input HIGH

Servo Controlled Voltage Stabilizer 3 Phase Air Cooled


Quick response time 10 milli sec (half a cycle)

Very high efficiency above 98 %

Excellent regulation - as high as +/- 0.5 %

“micro controller “controlled system

Wide input range of operations &high speed of correction

Parameter Specification
Input Voltage 340-480V AC, 295v - 480v
Output Voltage 415V AC 50 Hz 1 Phase
Output Voltage Accuracy ± 1% / ( 0.5 % optional )
Operating Frequency 47 to 53 Hz
Type Unbalance Supply and Load Conditions
Response Time 10 msec Max.
Efficiency Better than 98 %
Rate of Correction Upto -105 V / Sec
Duty 100 % Continuous / 110 % for 60 Sec. / 150 % for 10 Sec.
Wave form Distortion Nil
Effect of Load Power Factor Nil
Cooling Air-cooled
Ambient 0 – 45° C. max. / Relative Humidity upto 90 %
Environment Designed for indoor tropical use
Ratings KVA - Air Cooled 5,10,15,20,25,30,40,50,60,75,100,125,150,175,200,225,250,300 KVA

Metering on LCD Display

3ph input voltage ph to ph and ph to neutral

3ph output voltage ph to ph and ph to neutral

System frequency

Output current on each ph

Power Factor

Hormonics

Temperature

Programmable Control Timings

Over load cut off time

Auto restart time

On & Off delay time

Protection

Single phasing prevention

Output electronic over load protection

Phase reversal protection

Input short circuit protection with MCB

Input over load protection with MCB

Output low voltage protection

Output high voltage protection

Neutral Open protection

Indications in LCD Display

Input high and input low

Output on indication

Output high cut off and output low cut off

Programmable Parameters

Output voltage set (210-245V)

Output low voltage cut off

Output high voltage cut off

Input low on LCD display

Input high on LCD display

Sensitivity / Regulation

Over load cut off

CT full scale

Servo Controlled Voltage Stabilizer 3 Phase OIL Cooled




Parameter Specification
Input Voltage Range 340-480V AC, 295v - 480v
Output Voltage 415V AC 50 Hz 1 Phase
Output Voltage Accuracy ± 1% / ( 0.5 % optional )
Operating Frequency 47 to 53 Hz
Type Unbalance Supply and Load Conditions
Response Time 10 msec Max.
Efficiency Better than 98 %
Rate of Correction Upto -105 V / Sec
Duty 100 % Continuous / 110 % for 60 Sec. / 150 % for 10 Sec.
Wave form Distortion Nil
Effect of Load Power Factor Nil
Cooling Oil Cooled
Ambient 0 – 45° C. max. / Relative Humidity upto 90 %
Environment Designed for indoor tropical use
Ratings KVA 75 ,100,125,150,200,250,300,400,500,600,750,1000, 1250,1500, KVA

Isolation Transformer


Parameter Specification
System Connections Delta / Star
Input Voltage 415V 3 Phase
Output Voltage 415v or 200v 3 Phase
Ratios 1:1 and 2:1
Regulation Better than 1000 Mega Ohms
Power Factor 0.75 Lead to 0.75 Lag
Coupling Capacitance Better than 98 %
Leakage Current Less than 20 Micro Amps
Type of Execution Closed Type
Operating Temperature 0 C to 45 C
Type of Cooling Natural air / Forced air Oil Cooled ( optional )

Metering on LCD display

Eliminate Stresses that come from electrical transients.

Meet Stringent clean power requirements of the sophisticated / sensitive equipments

Reduces the effects of power line problems like noise , spikes surges, Transients and neutral to minimum

Application

CNC Machines

Printing Machines

Textile Machineries

Bio Medical Equipments

Cell Phone Networks

Oil & Vanaspathi Plants

Laboratory Equipement

Large Computer Installations

Online UPS Single Phase Input / Single Phase Output




DEVICES USED

Inverter :

IGBT ( Semikron Make) Control PWM

Technology With Pure Sine Wave Output

Rectifier :

Full Wave Rectifier By Using IGBT Charger

Power Factor Correction

Filter :

DC Power Capacitors with Choke Input Filter

Parameter Specification
Input Voltage 170V – 270V
Input Frequency 50Hz +/-6%
DC Bus 24V - 192V DC
Rectifier Bridge Rectifier FULL WAVE
Charger IGBT Power Factor Charger
Input PF >.97
Charging Current Depending upon the system
Charging Voltage Depending upon the system
Ripple without battery <1%
UPS Output Voltage 220V AC @ Single Phase
Regulation +/- 1%
Frequency 50Hz +/- 0.1Hz.
Waveform True Sine Wave
Total Harmonic Distortion <2% Minimum for Linear Load, 5% for Non Linear Load
Overload Capacity 125% for 10Mins, 150%for 1Sec.
Inverter Type IGBT Based PWM With Instantaneous Sine Wave Control.
Duty Cycle Continuous
Manual Bypass Provided
Inverter Efficiency > 93%
Converter Efficiency >94%
Converter Protection MCB ,and HRC Fuses, Soft Start for 0-60 seconds from input power
Inverter Production MCB and HRC Fuses, High speed pulse by pulse electronic over voltage / under voltage production, Over current trip with reset
LCD Display Output Voltage, DC Voltage ,Load in Watts ,Battery Low, Output Low/High, Overload.

Online UPS Three Phase Input / Three Phase Output




DEVICES USED

Inverter :

IGBT ( Semikron Make) Control PWM

Technology With Pure Sine Wave Output

Rectifier :

Full Wave Rectifier By Using SCR

Filter :

DC Power Capacitors with Choke Input Filter

Parameter Specification
Input Voltage 295V – 470V
Input Frequency 50Hz +/-6%
DC Bus 180, 192, 240, & 360 V DC
Rectifier SCR-SCR
Charger SCR CHARGER
Input PF >.97
Charging Current As Per Battery Capacity
Charging Voltage As Per Battery Capacity
Ripple without battery <1%
UPS Output Voltage 400V AC @ THREE Phase
Regulation +/- 1%
Frequency 50Hz +/- 0.1Hz.
Waveform Pure Sine Wave
Total Harmonic Distortion <2% Minimum for Linear Load, 5% for Non Linear Load
Overload Capacity 125% for 10Mins, 150%for 1Sec.
Inverter Type IGBT Based PWM With Instantaneous Sine Wave Control.
Crest Factor 3:1
Duty Cycle Continuous
Manual Bypass Provided
Inverter Efficiency .9
Converter Efficiency > 93%
Converter Protection > 94%
MCB ,and HRC Fuses, Soft Start for 0-60 seconds from input power
Inverter Production MCB and HRC Fuses, High speed pulse by pulse electronic over voltage / under voltage production, Over current trip with reset
LCD Display Output Voltage, DC Voltage ,Load in Watts ,Battery Low, Output Low/High, Overload.

Constant Voltage Transformer ( C V T )


Parameter Specification
Input Voltage Range 170 - 270 Volts A. C. 1 ph.
Frequency 50 Hz + 2.5
O/P Voltage 230 V AC ( Adjustable to 220 V or 240 V )
Line Regulation + 2% at rated load
Load Regulation 1 %
Waveform Sinusoidal
Response Time 20 ms.
CMRR Noise Rejection 100 db.
DMRR Noise Rejection 120 db.
Efficiency > 85 %
Total Galvanic Isolation 5 KV
Energy Storage 3ms.
Protection a) Short Circuit
b) Over Load
c) Fuse in the input Circuit

Salient Features

Unparalleled Reliability and power conditioning performance

Top in class sag, surge and brown out protection

Automatic sine wave generation

Perfect Switch Mode Power supply (SMPS) Driver

CVT works in a very large range of conditions (-40 degree Celsius to 70 degree Celsius in a special design)

Overload protection / can handle inductive loads

Common mode and series mode noise attenuation

Drives a wide range of power factor load (+/-0.75)

Output changes with frequency of input ( 1% frequency change produces 1.5 % change in output voltage )

Achieves Sine wave output from any input including square wave Protects from lightening

CMRR and DMRR noise rejection upto 100db

Application

Domestic

Weigh Bridges

Laboratory Power Supplies

Digital Camera / Office or home automation

Maritime Power supplies – Fixing harmonics

Total Protection for Computers to avoid data corruption

Battery charger and rectifiers

Heating equipments and Transmitters

Standard Features :

Regulator - Special Sensing Circuit to maintain constant output voltage even on DG

Metering - Combine - Digital VIF Meter for Input and Output Voltage /Output Current / Frequency.

Out put Voltage Protection - Adjustable Output Under and Over Volt. Alarm / time Delay Circuit / Trip and By pass Facility

Controls - Auto - Manual Switch / Lower – Raise switch

Servo Motor Protection - Voltage Cut-off for Servo Motor at Input Under and Over Voltage

MCB - Std. Upto 20 KVA

Optional Features :

MCB / MCCB / ACB - For Over Load and Short Circuit Protection

Input Voltage Protection - Input Under and Over Voltage indication and Cut off

Single Phase Preventer - Single Phasing indication with Cut off ( Phase Loss )

Neutral Loss - Output cut-off if Neutral is Missing at Input

GFM - Ground Fault Monitoring with Trip and Indication ( Leakage Current )

Output Over Load - Electronic Over Load Protection

SS - Surge Suppressor

SPD (Class C ) - Surge Protective Device 8/20 micro sec. as per IEC 61000-4-4 / 61000-4-5

Change Over / Bypass Switch - Stabiliser By pass

Salient Features :

Response Time - Less than 10 m-Seconds

Rate of correction - Upto 105V/Sec.

Control - Fully Solid State control circuitry

Motor - Variable Speed high torque, DC servo Motor with proportional control

High Efficiency - 98 %, using high grade Laminations and Electrolytic grade Copper.

DG Compatible - Special sensing circuit to maintain output voltage

Electronics Cards - Plug in type Glass Epoxy with masking. All Electronics cards are tested on load at 60 ºC and are interchangeable

Plug in Type - Polycarbonate for longer life Connectors

Raw Materials - 100 % Raw material Inspection as per Quality Plan.

Sub Assembly - 100 % sub-assembly Testing at various stages.

Auto / Manual Control - Facility on Front Control Plate in unlikely events.

Construction - Rugged construction with Caster wheels for easy movement.