Abstract: The aim of the invention is to use a separate device between the analog and digital communications lines to convert the digital load sharing information from the digital communication line to the analog communication line and vice versa. The device does not generate power itself for the load sharing and therefore does not disturb the load sharing of the generators on the both sides of the device. The device can be seen as a gate between the digital communication line and the analog communication line. The device simulates load situation of the generator/s connected to the digital communication line for load sharing with other generator/s connected to the analog communication line, and similarly it simulates load situation of the other generator/s connected to the analog communication line for load sharing with the generator/s connected to the digital communication line.

Abstract: The aim of the invention is to use a separate device between the analog and digital communications lines to convert the digital load sharing information from the digital communication line to the analog communication line and vice versa. The device does not generate power itself for the load sharing and therefore does not disturb the load sharing of the generators on the both sides of the device. The device can be seen as a gate between the digital communication line and the analog communication line.

Abstract: The modelling arrangement of the configuration situation of the electric power transmission network according to the invention comprises a modelling element (7) designed to be installed in each generator of the electric power transmission network. The modelling element (7) is arranged to measure the state of the said switches until an open switch is detected and to detect the corresponding generator on the basis of the closed switch and thus to model the power transmission network comprising the detected generators and the area of the power transmission network belonging to the same electric network via closed switches.

Abstract: A processing arrangement for the fault situation of a local electric power transmission grid comprises a generator-specific element arranged to monitor the fault situation of a data communication bus and the statuses of the switches of the electric power transmission network and to compare the status data concerning the same switch. In case of a fault situation the generators change into droop control only if there are no other possibilities to continue with the normal adjustment of the generator.

Abstract: A processing arrangement for the fault situation of a local electric power transmission grid comprises a generator-specific element arranged to monitor the fault situation of a data communication bus and the statuses of the switches of the electric power transmission network and to compare the status data concerning the same switch. In case of a fault situation the generators change into droop control only if there are no other possibilities to continue with the normal adjustment of the generator.

Abstract: The modelling arrangement of the configuration situation of the electric power transmission network according to the invention comprises a modelling element (7) designed to be installed in each generator of the electric power transmission network. The modelling element (7) is arranged to measure the state of the said switches until an open switch is detected and to detect the corresponding generator on the basis of the closed switch and thus to model the power transmission network comprising the detected generators and the area of the power transmission network belonging to the same electric network via closed switches.

Abstract: A gas engine has a first fuel feed system, a second fuel feed system and a third fuel feed system. The gas engine is operated by introducing combustion air into a combustion chamber of the engine. In a first mode of operation of the engine, gaseous fuel is added to the combustion air via the first fuel feed system and ignition fuel is injected into the mixture of gaseous fuel and combustion air via the second fuel feed system. In a second mode of operation of the engine, gaseous fuel is added to the combustion air via the first fuel feed system and ignition fuel is injected into the mixture of gaseous fuel and combustion air via the third fuel feed system.

Abstract: An indicator arrangement according to the invention also comprises a resistor (4) the first end of which is connected to between a passive acceleration sensor (1) and a filtering means (2) and the other end is connected to a basic voltage level. An output (5) is also connected to the connection of the first end of the resistor. The indicator arrangement also comprises a direct voltage source (3) the first end of which is connected to a passive acceleration sensor (1) while the other end is connected to a basic voltage level. Voltage can be detected from the output (5) of the indicator arrangement for detecting a fault in the indicator arrangement.

Abstract: An an internal combustion engine has a plurality of cylinders for providing the necessary energy used for the work performed by the engine. Cylinder specific knock monitoring is used in order to distribute the load automatically among the cylinders of the engine. When an individual cylinder knocks continuously, the antiknock control system of the cylinder aims at reducing permanently the quantity of fuel supplied to the cylinder. The fall in the total output caused by the reduction of fuel supply is compensated by increasing the fuel supply to all cylinders. The new operating values of the engine provided by the adjustment are stored in the memory and used also as new reference values.

Abstract: The present invention relates to an internal combustion engine, which has a plurality of cylinders for providing the necessary energy used for the work performed by the engine. According to the invention, cylinder specific knock monitoring is used in order to distribute the load automatically among the cylinders of the engine. When an individual cylinder knocks continuously, the antiknock control system of the cylinder aims at reducing permanently the quantity of fuel supplied to the cylinder. The fall in the total output caused by the reduction of fuel supply is compensated by increasing the fuel supply to the all cylinders. The new operating values of the engine provided by the adjustment are stored in the memory and used also as new reference values.

Abstract: A gas engine has a first fuel feed system, a second fuel feed system and a third fuel feed system. The gas engine is operated by introducing combustion air into a combustion chamber of the engine. In a first mode of operation of the engine, gaseous fuel is added to the combustion air via the first fuel feed system and ignition fuel is injected into the mixture of gaseous fuel and combustion air via the second fuel feed system. In a second mode of operation of the engine, gaseous fuel is added to the combustion air via the first fuel feed system and ignition fuel is injected into the mixture of gaseous fuel and combustion air via the third fuel feed system.

Abstract: A method of operating a knock detection system of a multi-cylinder piston engine in which the knock detection system comprises a sensor arranged in connection with each cylinder and a measurement circuit connected to the sensor includes running the engine at a load being less than full load and setting the output signal of each separate sensor between certain preset limits by adjusting one or more adjustment variables of the measurement circuit. The values of the adjustment variables for each separate cylinder are stored in the detection system. During normal use, the engine is run and the previously stored values of the adjustment values for each cylinder are used in the knock detection system.

Abstract: A method of operating a knock detection system of a multi-cylinder piston engine in which the knock detection system comprises a sensor arranged in connection with each cylinder and a measurement circuit connected to the sensor includes running the engine at a load being less than full load and setting the output signal of each separate sensor between certain preset limits by adjusting one or more adjustment variables of the measurement circuit. The values of the adjustment variables for each separate cylinder are stored in the detection system. During normal use, the engine is run and the previously stored values of the adjustment values for each cylinder are used in the knock detection system.