Supreme
make PHASE SHIFTING TRANSFORMERS are special transformers which provide convenient
means to adjust phase angle (power factor) of A.C. loading circuit while testing
power factor sensitive device for the full 90 degree LAG through '0' degree to
90 degree LEAD. Based on their rating these Phase shifters are manufactured in
two configuration.
1. ROTOR INDUCTION PHASE SHIFTER CAPACITY 600 VA.
2.
STATIC NETWORK PHASE SHIFTER CAPACITY 600VA & Above.
These phase shifters
operate on three phase power and provide 3 phase or 1 phase output voltage with
continuously variable phase angle. The control of the phase angle is made with
reference to the phase and phase sequence of the supply voltage.
APPLICATION
Since the PHASE SHIFTER provides 3 Phase output voltage with adjustable phase
angle, the same can be used in Laboratories and Factories as an accessory for
testing Electricity Meters (KWH Meters), Indicating Instruments (Wattmeters, Power
Factor Meter etc.) and protective relays with Wattmetric elements-Reactance Relays.
It can also be used as a Teaching Aid in Technical Institutions to Demonstrate
the operation of Power Factor Sensitive Electrical Devices.
1) ROTOR
INDUCTION TYPE PHASE SHIFTER
This is a special type of transformer comprising
of wound stator (primary) and rotor (secondary) similar to an induction motor.
It enables to rotate the axis of the vertically mounted rotor winding with respect
to the axis of the stator winding. The rotor can be turned one way or the other
so as to vary the phase angle by means of a hand wheel and worm gear attached
to the vertical shaft of the rotor giving a 60:1 reduction and extremely fine
control.
SPECIFICATION :
|
Rated Output
|
:
|
Upto
600 VA
|
Winding
Primary
|
:
|
Stator
|
|
Input
|
:
|
3
Phase 440V., 50Hz.
|
Winding
Secondary
|
:
|
Rotor
|
CONNECTIONS
& VOLTAGE :
Stator
/Rotor.
|
Delta
(primary)/Star (secondary)
|
:
|
3
Phase 440V/3phase 440V Or 3 Phase 440V/3phase 110V. with 3Nos. P.Ts.
|
|
Star
(primary) Star (secondary)
|
:
|
3 Phase 440V/3phase 440V Or 3 Phase 440V/3phase 110V. with 3Nos. P.Ts.
|
Note: Star
connected secondary winding provides a neutral terminal for external connection.
2. STATIC NETWORK PHASE SHIFTER
 Network
PHASE SHIFTING TRANSFORMER is a standard testing equipment which convert 3 phase
voltage into a 6 phase or 12 phase output with possible selection of phase angle
in step of 60 degree or 30 degree respectively for 90 degree LAG through 0 degree
to 90 degree LEAD (or180 degree LAG-0-180 degree LEAD). It also has provision
for stepless fine adjustment to set any phase angle in between two adjacent steps
of 60 degree or 30 degree range as the case may be. Thus, the full range of 0-360
degree i.e. 180 degree LAG through 180 degree LEAD is made completely adjustable.
In general construction of the phase shifter is similar to a phase conventional
core-type voltage transformer with its primary winding connected in delta and
secondary winding in star/ Zig-Zag network. The
primary supply voltage is
440 Volts, 50 Hz. and the transformation ratio unity. SPECIFICATION :
|
RATED
VA
|
:
|
600VA(200VA
PER PHASE)
| |
PRIMARY
OUTPUT
|
:
|
3
phase, 440V., 50Hz.
| |
PRIMARY
CONNECTION
|
:
|
Delta.
|
|
SECONDARY
CONNECTION (OUTPUT)
|
:
|
Star/Zig-Zag.
|
|
VOLTAGE
|
:
|
3
Phase, 440V., 50Hz.
| |
. |
. |
0-180
Degree (90 degree lag-0-90 degree lead)
| |
PHASE
ANGLE CONTROL
|
:
|
0-360 degree (180 degree LAG-0-180 degree LEAD, continuous stepless variation.)
with
| |
a.
Power Factor Selector
Switch
|
:
|
Full range in steps of 30 or 60 degree.
| |
b.
Fine angle (P.F. control)
|
:
|
Selected range ( 30 degree/60 degree) with continuous and stepless adjustment.
|
Note: Capacity other
than the above can be supplied as per your requirements
|
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