Double Wound Transformers

About Double Wound Transformers

 TOROPOWER

COMPACT  EFFICIENT  ECONOMICAL  TOROIDAL TRANSFORMERS BY VOLTAMP

AUTO TRANSFORMERS

A range of high quality toroidal transformers with one 230V AC
winding and taps provided as per requirement All leads for both input
and output are doubleinsultated enameled wire with stripped 
tinned wire ends thereby reducing assembly time

There are no air gaps in the core  no vibrating laminations The simple
construction of the toroid results in savings in weight as compared to
the conventional laminated type transformers High conductivity
copper windings on insulated torodial core made of high grade cold
rolled grain oriented silicon steel ensures very low magnetizing
currents  results in savings in power consumption making this range
particularly attractive for compact power source and slimline
equipment A further benefit of this gapless core is the reduced level of
radiated electrical noise hum field

NOTE

Each transformer is supplied with a dished washer protection pads
and nut bolt and washer for single hole fixing The pads are to be
fitted above and below the transformer winding and the dished
washer on top of the upper pad

Under no circumstances should both ends of the fixing bolt contact a
metal chassis or frame as this would create a shorted turn causing
irreparable damage

THESE TRANSFORMERS DO NOT PROVIDE ISOLATION FROM
MAINS

TOROPOWER range of toroidal transformers are available

 With Voltages as per customers specifications upto
   600 volts max

 Also available in sheet steel Enclosed or Rosincast models


FEATURES

 230 V AC Input  115 AC Output 5060 Hz
 Popular voltage tappings 220240 VAC also available
 Negligible wave form  power factor distortion
 Excellent short time overload capacity
 Small size and low weight as compared to traditional
  stacked lamination type transformers
 Extremely low level of radiated magnetic field
 Very low induced noise hum
 Very low iron loss  magnetizing current  good
  regulation
 Double Insulated leads
 Supplied with mounting kit having a single hole mounting
  arrangement
 100 electrical and flash tested
 High quality manufacturing and testing


TECHNICAL SPECIFICATIONS

Rated  Regulation           Temp Rise                   Dimensions                     Weight Kg

VA       Percentage    Degrees Celsius   Diameter MM   Height MM                  

1000          7                        70                       160                40                      45

500            6                        60                       115                70                      34

250            6                        60                        110               50                      21


Allow 5 mm extra where leads emerge  for mounting kit
DimensionsData are subject to change without prior notice


TOROPOWER

COMPACT  EFFICIENT  ECONOMICAL  TOROIDAL TRANSFORMERS BY VOLTAMP

DOUBLE WOUND TRANSFORMERS

A range of high quality toroidal transformers with twin 115V AC
primary windings and wide choice of secondary voltages The primary
windings can be connected in series or parallel to cater for 115V or
230V 5060Hz AC Inputs All leads for both primary and secondary are
doubleinsulated enameled wire with stripped wire ends thereby
reducing assembly time

There are no air gaps in the core  no vibrating laminations The
reluctance is low resulting in very low magnetizing currents with
savings in power consumption A further benefit of this gapless core is
the reduced level of radiated electrical noise hum field

The simple construction of the toroid and the resultant saving in weight
as compared to the conventional laminated transformers makes this
range particularly attractive for compact power supplies and slimline
equipment Weight of conventional laminated transformer of 1 KVA is
approximately12 kg whereas weight of TOROPOWER toroidal
transformer is approximately7 kg

NOTE

Twin 115V AC 5060Hz primary windings which may be connected in
series for 230V or in parallel for 115V operation

Twin secondary windings may be connected in series or parallel or can
be used independently

Each transformer is supplied with a dished washer protection pads
and nut bolt and washer for single hole fixing The pads are to be fitted
above and below the transformer winding and the dished washer on
top of the upper pad

Under no circumstances should both ends of the fixing bolt contact a
metal chassis or frame as this would create a shorted turn causing
irreparable damage

FEATURES

 Dual standard primary winding 115230V AC
 Small size and low weight as compared to traditional
  stacked lamination type transformers
 Extremely low level of radiated magnetic field
 Very low induced noise hum
 Very low iron loss  magnetizing current  good regulation
 Double insulated leads
 Supplied with mounting kit having a single hole mounting
  arrangement
 100 electrical and flash tested
 High quality manufacturing and testing


TECHNICAL SPECIFICATIONS

Rated  Regulation            Temp Rise                    Dimensions               Weight Kg

VA       Percentage       Degrees Celsius   Diameter MM   Height MM        

1000        9                             70                          165                       85                  6850
500          9                             50                          165                       60                  4650
160          8                             50                          115                       70                  2350
120          6                             45                          115                       45                  1600

Allow 5 mm extra where leads emerge  for mounting kit
DimensionsData are subject to change without prior notice