Diesel Generator Automatic Transfer Switches

All entrepreneurs can appreciate the fact that time is money, which is why your business operation simply cannot afford to let power outages stop production. When the primary power supply (from the utility company) fails, a generator can be used as a backup source to transfer power to the onsite applications. For this to happen, however, a transfer switch is needed to redistribute the power in an effective manner. An automatic system is able to perform in such a manner due to the use of a control panel.


While a manual transfer switch is controlled by a human, an ATS works autonomously to provide fast and reliable backup power. The intricate system can detect power failures before immediately transferring power to the generator, with the control system allowing the generator automatic switch to let applications reach the desired voltage and frequency. To do this effectively, the advanced system relies on several key elements.


Voltage & Frequency


Diesel Generators require a certain level of voltage and frequency to provide a suitable level of power to applications. The control system can detect a drop in voltage as well as a complete lack of energy. When it does, the sensors direct the ATS so that it can check the generator has the ability to accept the load. Once the minimum levels are reached, the power can be transferred to the generator. All phases are monitored against preset settings, so this detection and transfer of power occur in a seamless fashion.


Time Delays


While an auto transfer switch can detect and rectify issues far quicker than a human user, they need to boast a short time delay function too. This is because a drop in power from the utility company can often be a momentary lapse before correcting itself. This delay is most commonly set to one second although it can range anywhere from 0-6 seconds, and this essentially prevents loads from being unnecessarily transferred during those short-lived drops in power.


Likewise, a delay will be used once the normal power source has returned in order to ensure that the traditional systems are running smoothly. This can last for up to 30 minutes, but the control panel is able to automatically bypass this once normal service is resumed.


Engine Control Contact Point


When power from the grid fails, the system control can use a closed contact point to complete the circuit from the cranking batteries to the engine controls once more. Alternatively, the contact point automatically opens to break the circuit and allow the generator to shut down. Some ATS switches may incorporate several contact points to avoid the threat of one single point of failure. Control systems within the automatic transfer switch should also include a manual control point.


If your business needs help with its ATS and backup power supplies, our friendly and experienced technicians are on hand to provide that peace of mind with a host of related services. Once completed, power outages will never ruin productivity again.