CAPACITOR DISCHARGE UNIT
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CAPACITOR DISCHARGE UNIT |
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| CAPACITOR DISCHARGE UNIT (CDU) | |||
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| Some types of solenoid point motors require a large current to switch them. A typical transformer can only supply enough current to switch one or perhaps two point motors at the same time | |||
| The purpose of capacitor discharge units is to store up this lower current in a capacitor. The charge stored in the capacitor is then released, on demand, as a burst of a much larger current. | |||
| Our high power CDU allows 6 or more point motors to be operated simultaneously. | |||
| The CDU will also protect point motors from being burnt out by a fault in the switching circuit. After the CDU has discharged it will not allow recharging until the switching circuit reopens. | |||
| Both the standard power and high power CDU may be operated from any AC voltage up to 24volts. | |||
| Using a high voltage increases the power from a CDU. | |||
| Operating from 24 volts instead of 12 volts gives 4 times the power. (24 volts can be obtained by connecting the two 12 volt transformer windings in series). | |||
| SIZE Length x Width | |||
| 2.8 x 1.35 inches 71 x 34 millimetres | |||
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| The above diagram shows three Point Motors powered by a CDU, each Point Motor using a different switch. Click on Information for more about Solenoid Point Motors. | |||