With the method according to the invention, more than two trigger characteristic curves can be used, each being larger than the trigger characteristic curve used immediately beforehand but smaller than the maximum trigger characteristic curve.

The breaker trips according to a trip curve split into three protection regions.

If the impedance values lie within the trigger characteristic curve, the trigger signal is generated, otherwise the system switches to a maximum trigger characteristic curve corresponding to the section to be monitored.

Impedance values following those determined first are checked to see whether they lie within the maximum trigger characteristic curve, and the trigger signal is generated if necessary.

According to the invention, in the event of a short-circuit, impedance values formed from the current and voltage for obtaining a trigger signal are checked to see whether they lie within a predetermined trigger characteristic curve.

The thermal model implements a difference equation that determines using a low-pass filter two parameters corresponding to calibration points along an overload trip curve.

With the method according to the invention, more than two trigger characteristic curves can be used, each being larger than the trigger characteristic curve used immediately beforehand but smaller than the maximum trigger characteristic curve.

If the impedance values lie within the trigger characteristic curve, the trigger signal is generated, otherwise the system switches to a maximum trigger characteristic curve corresponding to the section to be monitored.

The breaker trips according to a trip curve split into three protection regions.

If the impedance values lie within the trigger characteristic curve, the trigger signal is generated, otherwise the system switches to a maximum trigger characteristic curve corresponding to the section to be monitored.

The invention relates to a method for initiating a brake engagement before curves by a driver assistance system.

The activating characteristic curve of a respective accident type linearly runs up to a first impact speed value.

Impedance values following those determined first are checked to see whether they lie within the maximum trigger characteristic curve, and the trigger signal is generated if necessary.

The characteristic response curve (7) of the bypass circuit (15) can be varied automatically as a function of parameters set for the normal tripping situation.

The invention relates to an electronic tripping device (10) for a circuit breaker (7), containing a circuit arrangement for simulating the response curve of a fuse.