A.C / D.C Transformers Rectifier Power Supplies

TMC Manufacture a vast range of transformer rectifier units to suit your requirements either open or enclosed types. Enclosed types can be either fixed wall or floor mounting or portable which can be supplied to your required IP rating up to IP66. We also build 50V DC TJ units for the railway industry as well as DC points heater transformers. DC rectifier units can be supplied with silicon or selenium rectifiers, smoothed or un-smoothed, half wave or full wave bridge or centre tap. If required anti-surge & transient suppressors can be added.

AC SUPPLY FREQUENCY RANGE:- 16, 33.3, 50, 60, 75, 125, 400, 800Hz

DC VOLTAGE RANGE:-
from 1 to 750V with multi tappings on input & output if required.

DC CURRENT RANGE:-
from 10mA to 1000A. Connections from solder tags to Cu busbar.
 
CIRCUIT PROTECTION:-
For short circuit we would recommend high speed fuse links to protect the silicon diodes. For overload protection thermal cut outs / mcb’s can be fitted. The type of protection that is used is dependant on the nature of the load.

SWITCH MODE POWER SUPPLIES:-
TMC can also manufacture ferrite transformers & chokes for the SMP industry.

Recifier Circuit Types :-

Single Phase

  HALF WAVE FULL WAVE CENTRE TAP OR BRIDGE
PULSE :- 1 2
RIPPLE V:- 121% 48%
( In Terms of DC )    
     

Three Phase

  HALF WAVE CENTRE TAP OR BRIDGE
PULSE :- 3 6
RIPPLE V:- 18% 4.2%
( In Terms of DC )    
     
  DELTA/STAR BRIDGE 2off X’SFMR’S DELTA /STAR BRIDGE
PULSE :- 12 24
RIPPLE V :- 1.1% 0.4%
( In Terms of DC )    
  (These two items can be supplied with an inter-phase reactors)  

 

The above ripple voltages are for un-smoothed DC. With a 50Hz AC.supply.
Extra smoothing can be obtained with a capacitive or choke input filter. TMC can manufacture DC smoothing chokes to suit your requirements.

 

PLEASE CONTACT TMC SALES FOR A FREE ESTIMATE OR FURTHER ASSISTANCE WITH DESIGNING THE EXACT UNIT FOR YOUR APPLICATION.