A condenser keeps tripping breaker on high voltage power supply for purposes of preventing electrical equipment overload. Condenser will drop current if a low voltage is applied. The condenser protects the main line from overloading. It is built in the main power supply or the in the direct current system. This is because it is low-energy device which can be operated at a lower frequency. It is normally made up of a ferrous or non-ferrous material. And the most common one is plastic.
The condenser also comes under the category of devices, which is under the control of the National Electrical Code (NEC) and is regulated by the state electricity department. The states do not regulate them independently. Their functions are subjected to the NEC and are assigned by the state. The use of a condenser drops current if a low voltage is applied. Some of the non-NEC states do not require a condenser to be attached to the power supply. Even if you are using a transformer, it would not be harmful if a condenser is used in your system.
If the power supply for the home is connected directly to the main line, the duty of the condenser is performed by the circuit breaker. The circuit breaker trips if the potential difference between the supply and the load exceeds a predetermined level. In cases where the power supply is not connected directly to the main line, then a condenser is attached to the power supply. It is important to note that the safety of the residential system is always ensured.