THE ROLE OF AUTOMATIC GENERATOR AND TRANSFER SWITCH SYSTEM

The totally Automatic Transfer Switch (ATS) checks incoming voltage from the utility line, 24/7. When utility power is disrupted, the automatic transfer switch instantly senses the problem and signals the genset to start. If the genset runs at appropriate speed, the Automatic Transfer Switch ATS) securely turn off the utility line and simultaneously opens the generator power line from the generator. Within seconds, the genset system starts supplying electricity to the critical emergency circuits of home/business. The transfer switch continues to check the conditions of the utility line. Once the Automatic Transfer Switch (ATS) senses the utility line voltage returned at a stable condition, it re-transfers the electrical load back to the utility line and continues monitoring for successive utility loss. The genset continues to run for an engine cool-down period of several minutes while the entire system stands ready for the following power outage.

Other purposes of a transfer switch. Fire or homeowners insurance may be cancelled when installingl a generator without a transfer switch, as these switches are required by the building code electrical codes in most areas. Provided below are information which explains other data why transfer switches are a requirement. AVOID CONNECTING A GENERATOR THROUGH A DRYER PLUG OR OUTLET IN A BUILDING. IT CAN CAUSE A FIRE OR ELECTROCUTE SOMEONE!

USE A TRANSFER SWITCH  It must be installed by a professional electrician or skilled individual and must be compliant with all pertinent laws and electrical codes.

TRANSFER SWITCH SAFEGUIARDS LINEMAN The utility line voltage is usually "reduced" before entering the building, by a transformer. The transformer can work in reverse if voltage is sent through it in the opposite direction and "accelerate" the voltage. This accelerated voltage, back-feeding through the utility lines, may electrocute workers that come into contact with the utility lines.

A TRANSFER SWITCH SAFEGUARDS THE HOME Inappropriate connections can allow electrical current from the genset to short circuit with utility line current if power is resumed. This can trigger a fire in the electrical system.

A TRANSFER SWITCH SHIELDS THE GENERATOR Inappropriate connections can allow electrical current from the genset to short circuit with utility line current when power is resumed. This could trigger explosion or burning of the genset.

SEVERAL TYPES OF TRANSFER SWITCHES There are different types of transfer switches that may be used with generators. Portable and Small Generator Transfer Switches These switches are limited to 21,000 watts (21 kW) and are basically manually switched. Provided below are the details providing specifications and a just a few recommendations for matching a transfer switch to a generator:

TRANSFER SWITCH OPERATION Small & Portable Generators The Transfer switch separates selected circuits from the home with "Break" then "Make" switches. Eevery switch has 3-positions; LINE, OFF and GEN (generator). In the LINE spot, utility power feeds the chosen circuits. In the GEN position, generator power feeds the chosen circuits. To switch from LINE to GEN, the switch is led through the OFF position, which lets a positive break to happen, which prevents sparking, arcing or short circuits that might be developed if the positive break was not part of the system. Individual circuit protectors shield every chosen circuit from overload, allowing a larger generator to be connected to the transfer switch without the transfer switch being overloaded.

Large/Industrial Generator Transfer Switches These switches can handle different voltages and are generally unlimited in the size available. Basically, they transfer automatically and have a wide range of features like automatic excising, changeable start and stop delay times, changeable cool down times and other features. Transfer switches are available fused and with breakers. Special switches allow the use of more than one generator at a time, switching between multiple generators and other situations.