Automatic Transfer Switch (ATS)

When using the automatic transfer switchboard, the start / stop of the DGU will be performed by an external command, which is fed to the corresponding input of the DGU from an external device (voltage monitoring relay installed on the control panel or on the ATS unit).

When assembling ATS on the front panel, as a rule, there are indicators of control with such indicators of main and reserve inputs as:

• parameters of electric energy;
• switching on contactors;
• voltage;
• violation of the order of alternation of phases of different inputs.

With ATS devices can be combined:

• light indication and audible alarm;
• electricity metering and distribution devices;
• devices for monitoring load and power parameters.

Depending on the rated current and the customer’s wishes, the assembly of ATS devices can be carried out in a floor or hinged version, and the need for unimpeded access to the elements of maintenance and management is also taken into account.

The standard ATS device provides a number of the following functionalities:

• protection against short circuits and overloads;
• automatic transition to a backup source when the mains voltage drops;
• reverse transition to the main input after restoration of voltage on it;
• giving a signal to switch on and stop the electric generating set;
• light indication;
• process details on the controller display;
• at the request of the client, we can provide, for an individually designed ATS shield, a number of additional functions and successfully implement them in the production process.

At the request of the customer, Labscand specialists can supply the ATS shield with such additional functions as:

• Ability to manually control the generator from the shield
  Sometimes it is necessary to force the generator to run (prevention, unstable network, controller problems). In this case, you can independently control the generator without leaving the street.

• Automatic heating and cooling of the generator
  In order for the generator to “live” in a gentle mode, it needs warm-ups before starting and cooling down after. And also rest intervals, regulated by the generator manufacturer. This will take care of the ATS unit.

• Weekly preventive triggering of the generator
  That the generator was in constant combat readiness, it must be periodically started – at 10-15min. In this case, you will be aware that everything is in order, the generator is started and the automation is working.

• +2 attempts to start the generator when the first fails
  If the first attempt to start the generator fails, the ATS shield tries to start it two more times. This increases the chances of successful network backup when it disappears.

• Mains power supply for battery charging and heating
  While the network is in order, it is necessary to recharge the generator’s starting battery, and also to heat it for a more reliable start-up in the cold season.

• A workaround for full switching to the network
  Important safety switch! If anything in the automation unit fails, you can switch to direct power from the network at any time.

• Self-powered battery
  Will make the control unit independent of the state of the network and the charge of the starting battery of the generator (for several days).

• Wide range of settings
  To control the time of work and rest, warming up and cooling the generator.