A capacitor is an energy storage device widely used in electronic circuits to block direct current while allowing alternating current to pass. They are used in filter networks to smooth the output current of power supplies and stabilise system voltage.

Do I need a capacitor solution?

  1. Poor power factor due to inductive loads creating an inefficient electrical system
  2. Overheating of transformers, switchgear and cabling
  3. Unstable voltage supply
  4. Unstable equipment operation
  5. High energy usage and costs

Why use capacitors?

Capacitors can have a wide range of applications in electrical circuits:

Power factor correction: Capacitors are a purely reactive electrical component. They can be used to offset inductive loads such as motors to improve power quality.

Harmonic filtering and power conditioning: Given its ability to store energy, a capacitor does not instantaneously change value with changes in system voltage levels. This response time allows the capacitor to provide smoothing of output current fluctuations.

Energy storage: A capacitor stores electrical energy when connected into a powered circuit. This energy is dissipated when the power circuit is disconnected, acting as a temporary battery. Capacitors are commonly used in electronic devices to maintain power supply while batteries are being changed, or can provide extended service capacity for uninterruptible power supplies (UPS).

Motor starters: Capacitors can be used to alter the current to one or more windings of a single phase AC induction motor to create a rotating magnetic field. The force of the magnetic field provides sufficient torque to allow it to begin to rotate.

What we offer

Captech is one of Australia’s leading suppliers of capacitor components, specialising in custom solutions for a range of industries and applications including motor starting and running, power electronics and lighting and power factor correction to improve electrical utilisation and efficiency. Our range includes:

1. Multi-purpose capacitors – Captech offers a range of 1ph DUCATI multi-purpose capacitors suitable for a wide range of applications including motors, pumps, compressors, power tools, fans, air-conditioning units, lighting, electrical appliances, whitegoods and other general-purpose equipment.

2. Medium voltage capacitors – Partnering with FRAKO, Captech’s range of medium voltage capacitors can be produced in various dimensions with a variety of voltage and power ratings for fast delivery.

3. Motor start capacitors – Captech’s range of motor start capacitor are suitable for welders, generators, power supply, inverter, rectifier, UPS, strobe, and a wide range of electronic circuit applications.

4. Electrolytic capacitors – Suitable for welders, generators, power supply, inverter, rectifier, UPS, strobe, and a wide range of electronic circuits applications.

5. Power capacitors – Partnering with FRAKO, Captech offer a range of power capacitors specially designed to suit power factor correction and filtering applications

Captech can also deliver capacitors according to custom specifications.

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