Monitoring an energy parameter in a distribution station

In a distribution station of a power distribution network including a monitoring device with a device identifier, and a readout device for querying the monitoring device, the readout device comprising:

• an interface for receiving the device identifier;
• and
• an access unit for determining access information based upon the device identifier;
• and
• an interrogation unit for (i) transmitting a request comprising the access information to the monitoring device, and (ii) receiving an energy parameter directly from the monitoring device.

A monitoring system for monitoring energy parameters in a distribution station of a power distribution network, the monitoring system comprising:

• a monitoring device for monitoring an energy parameter;
• a readout device for querying the monitoring device;
• the monitoring device comprising a device identifier for uniquely identifying the monitoring device, a measurement unit for measuring at least one of the electrical current and the voltage of an alternating current flowing through the voltage conductor;
• an evaluation unit for determining said energy parameter based upon the result of said measurement unit;
• a communication unit for receiving a request from the readout device, and transmitting the energy parameter directly to the readout device only if the received request comprises access information corresponding to the device identifier;
• the readout device comprising an interface for receiving the device identifier, an access unit for determining access information based upon the device identifier, and an interrogation unit for (i) transmitting a request comprising the access information to the monitoring device, and (ii) receiving an energy parameter from the monitoring device;
• and
• a system identifier for uniquely identifying the monitoring system, which system identifier adapted to be read out from the immediate spatial proximity.

A method for monitoring an energy parameter in a distribution station with a monitoring device for attachment to a voltage conductor in the distribution station, comprising the steps of:

• measuring at least one of an electrical current or a voltage of an alternating current flowing through the voltage conductor;
• determining the energy parameter based on at least one of the measured electrical current and voltage;
• receiving a request from a readout device;
• and
• transmitting the energy parameter directly to the readout device if the received request comprises access information that is based on a device identifier for uniquely identifying the monitoring device, wherein the device identifier is designed to be read out from immediate spatial proximity.

A method for querying a monitoring device in a distribution station, the method comprising:

• receiving a device identifier of the monitoring device;
• determining access information that is based on the device identifier;
• transmitting a request to the monitoring device, wherein the request comprises access information;
• and
• receiving an energy parameter directly from the monitoring device.