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Solid State - Modulated Wave Stabilizer
Sai Electricals with its customer centric approach and continuous R&D has brought about a revolution with the launch of Powerware EEZ.
Powerware EEZ is a Modulated Wave stabilizer based on state of the art Pulse Width Modulation (PWM) technology using latest generation IGBT semiconductors, which maintains constant output voltage for an easy and comfortable ride, even during severe voltage fluctuations.
Power fluctuation causes motor inefficiency, overheating and burning of motors, high consumption in lighting loads, failure of bulbs, chokes and electronic equipment, malfunctioning of CNC machines and computer loads.
Powerware EEZ senses the fluctuations in the input voltage on real time basis. Instantaneously the IGBT, with a switching time of less than 0.5 micro secs, generates a PWM sine wave of exact magnitude required to be added to/ subtracted from the line voltage and feeds it to the primary of a series buck/ boost transformer. The buck/ boost transformer superimposes this sinewave to the line voltage, without any waveform distortion, to provide a constant and smooth output voltage.
Powerware EEZ is housed in an indoor enclosure with following inbuilt protections :
| Temperature cutoff |
Surge suppressor |
| Overload cut off |
High voltage cut off |
| Fault bypass (Input=Output) |
Low voltage cut off |
Powerware EEZ works best with properly earthed neutral. In case of a floating neutral, it is strongly recommended that the neutral be grounded to minimize the float. Alternately an Isolation transformer may be installed.
| Features |
Technical Advantages |
User Benefits |
| Sinewave superimposition through PWM wave |
Instantaneous voltage correction |
Smooth operations of critical CNC, process control equipments and computer systems.
No light flickering.
Star rating Appliances get ideal voltage conditions for optimum performance |
| Saves energy |
Payback period less than one year |
| Brown outs eliminated |
Improves output quality and productivity in process plants |
| IGBT technology |
No moving parts |
Distortionless voltage
High reliability
Low noise levels |
| Designed to withstand short duration overloads |
Capability to withstand starting torque of motors |
Easy motor starting without nuisance trippings |
| Compact |
Small footprint & low weight |
Easy to handle and install, even in residential/ commercial premises |
| Inbuilt surge suppression circuit |
Prevents surges |
Saves costly equipments from surge damages |
| Wide range of standard models |
Covers wide input voltage range and load |
Easily available
Caters to all customer segments |
Standard Models
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Description
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Single Phase Models
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Description
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Three Phase Models
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|
Input Range
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140-290
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173-290
|
196-266
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Input Range
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242-502
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300-502
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340-460
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|
Output
|
230
|
230
|
230
|
Output
|
400
|
400
|
400
|
|
Capacity (KVA)
|
Availability
|
Capacity (KVA)
|
Availability
|
|
5
|
Yes
|
Yes
|
Yes |
15
|
Yes
|
Yes
|
Yes |
|
10
|
Yes
|
Yes
|
Yes |
30
|
Yes
|
Yes
|
Yes |
|
15
|
Yes
|
Yes
|
Yes |
45
|
Yes
|
Yes
|
Yes |
|
17.5
|
Yes
|
Yes
|
Yes |
52.5
|
Yes
|
Yes
|
Yes |
|
20
|
Yes
|
Yes
|
Yes |
60
|
Yes
|
Yes
|
Yes |
|
25
|
|
Yes
|
Yes |
75
|
|
Yes
|
Yes |
|
30
|
|
Yes
|
Yes |
90
|
|
Yes
|
Yes |
|
35
|
|
Yes
|
Yes |
105
|
|
Yes
|
Yes |
|
40
|
|
Yes
|
Yes |
120
|
|
Yes
|
Yes |
|
50
|
|
|
Yes |
150
|
|
|
Yes |
|
60
|
|
|
Yes |
180
|
|
|
Yes |
|
70
|
|
|
Yes |
210
|
|
|
Yes |
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