Content on this page requires a newer version of Adobe Flash Player.

Get Adobe Flash player

 


AUTO TRANSFORMER

Varistat  is a continuously variable autotransformer, having a movable carbon, sliding on a silver plated commutator, by either manual or by motor, give an out put voltage from zero.  Range of Products is from 0.75 Amp to 200 Amp in 1 Phase, 2 Phase or 3 Phase.

FEATURES

* RUGGED CONSTRUCTION: Varistat are designed for trouble free operation in industrial use.
    It is designed to give maximum life under extreme conditions.

* HIGH EFFICIENCY: Varistat designed with low flux density, low current density and high
   insulation standards. Selection of carbon from the best grade of raw material will keep a high    standard of quality of varistat

* Excellent regulation: Varistat have minimum voltage drop in from no load to full  load.

* Low magnetizing current: Varistat made with high quality grain oriented silicon steel, in    adequate quantity so the iron losses are controlled to minimum. the no load current is always    less than 3% of the ruled current

* No wave form distortion: Varistat provides an out put voltage wave form which is faithful and    distortion less replica of the input voltage wave form. 

* Load capacity: Varistat  is  designed with unity power factor of 0.8. We can put many over    load on it because of its Excellent design sufficient off time is provided to reduce the
   temperature build up specially when repeated over loading takes place. 

* Smooth and linear out put: Carbon brush is in constant contact with more than one turn.    (Voltage between the turns is very less) Sparking is avoided & out put can be set very easily    at any point.

* Silver plated commutator: A special silver plating technique is used on the commutator    enabling Varistat to withstand high overloads and maintain constant contact drop. It also    insure smooth operation, long life  and resist to corrosion.

* Low operating torque: A smooth commutators and perfect assembly of coil & well centered    bushes results in very low operating torque which increase life of  motor/ varriac.

* Carbon depositions: Specially up to 10 amp Varistat are available with square or  round    carbon, because of round in shape it rotates on commutators, No traction between the carbon    and commutator, so carbon deposition is very less when we use the round carbon. No wear    and tear in carbon's diameter, as a result carbon replacement is not  required for very long    time.

* Double wound Auto Transformer: Specially designed double wound Autotransformer have    been developed for voltage stabilizer application. these Varistat is also available with inbuilt    12v DC motor, which is very cost effective and time saving for servo manufacturer. These    varistat will eliminate the need of buck-boost transformer & AC or DC external motor, its    gears, its couplings and other mechanical requirements in stabilizers.

DIMENTIONS IN MM
Type
A
B
C
D
E
F
G
H
2F-3 110 110 92 92 15 25 30 330
4F-3 175 175 146 146 25 30 50 410
8F-3 175 175 146 146 25 30 50 410
10F-3 180 180 156 156 25 30 50 410
15F-3 225 225 176 176 25 40 50 425
20F-3 240 240 205 205 25 40 50 425
28F-3 300 300 238 238 60 50 50 525
DIMENTIONS IN MM
Type
A
B
C
D
E
H
Ø
4P-1
175
175
146
146
35
140
10
4P-1
175
175
146
146
35
170
10
10P-1
180
180
155
155
35
170
10
15P-1
225
225
176
176
40
190
11
20P-1
240
240
205
205
40
190
11
28P-1
300
300
238
238
70
225
13

Dimension of 1phase auto transformer panal mounting (open type)

DIMENTIONS IN MM
Type
A
B
C
D
E
F
G
H
2F-1 110 110 92 92 15 6 30 7
3F-1 110 110 92 92 15 6 30 7
4F-1 175 175 146 146 25 6 35 10
8F-1 175 175 146 146 25 6 35 10
10F-1 180 180 155 155 25 6 35 10
15F-1 225 225 176 176 25 10 40 11
20F-1 240 240 205 205 25 10 40 11
28F-1 300 300 238 238 60 10 40 13
 SMPS
 UPS & INVERTOR
 AUTO TRANSFORMER
 BATTARY CHARGER
 TOROIDAL TRANSFORMER
 STABILIZER
 CONSTANT VOLTAGE TRANSFORMER
   

 

 
   
 
Designed & Hosted by : MID   Promoted by : GID