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Products -> Single Phase Transformers -> DC Power Supply Transformers

DC Power Supply Transformers

Single Phase

We can design and manufacture to order DC power supplies with a range of characteristics to suit the customer’s specific requirements.

These include

Bi-phase Rectified
Bi-phase Rectified and Smoothed
Full Wave Rectified
Full Wave Rectified and Smoothed

Un-smoothed Single Phase DC Supply
Smoothed Single Phase DC Supply

Our transformers are designed with the correct level of compensation of the AC output voltage for regulation and peak currents to provide the required DC output voltage.

Transformers as standard for these applications include 2 primary trim taps.

Smoothed DC units incorporating large capacitors are fitted with discharge resistors to prevent the possibility of accidental shock after the unit is switched off. Such resistors are designed to discharge to safe voltage levels within 30 to 60 seconds without dissipating excessive power during normal operation of the supply.

Rectifiers are selected and mounted on suitable heat-sinks to operate continuously at the required DC output current.

Options for open style : Fuses Enclosures

DC Supplies can be supplied in a range of enclosures from IP22 to IP66

Options for enclosed: Fuses Thermal Protection MCB’s & RCD’s Plugs & Sockets Isolators Meters

We do not supply DC units with Half Controlled or Full Controlled Thyristor or Triac Rectifiers however we can provide transformers suitable for use with such devices.

3 Phase

We can design and manufacture to order various DC power supplies to operate on 3 phase supply systems. These DC supplies automatically provide high levels of smoothing without the requirement for capacitors and inductors

6 Pulse Rectifiers
12 Pulse Rectifiers (series connected)
12 Pulse Rectifiers (parallel connected)
Greater than 12 pulse systems
Smoothed to 4.5% ripple
Smoothed to 2.5% ripple
Smoothed to 2.5% ripple
Smoothed to requested levels

3 Phase 18 Pulse Transformer Rectifier
3 Phase DC Supply with
Discrete Diode Assembly

Options for open style : Fuses Enclosures

DC Supplies can be supplied in a range of enclosures from IP22 to IP66

Options for enclosed: Fuses Thermal Protection MCB’s & RCD’s Plugs & Sockets Isolators Meters

Variable DC Power Supplies

We can design and manufacture variable DC supplies either single phase or 3 phase using a variac or a Variac / Transformer combination before the rectifier. When connected directly they will give a variable output from 0V to the required maximum DC voltage or when connected in a “Buck-Boost” configuration will give a DC supply variable over a ± Tolerance range.

The units can be supplied open style as a kit of parts

  • Variac / Transformer / Rectifier and heatsink
  • Variac / Complete DC power supply assembly

to be built into your own panel or as a complete enclosed assembly

Options for enclosed: Fuses Thermal Protection MCB’s & RCD’s Plugs & Sockets Isolators Meters
 
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