Medium voltage integrated switchgear
View Patent ↗An electric power distribution switchboard ( 1 ) in which one or more functional units are equipped with a switching device compartment ( 3 ) that integrates primary and secondary functions. Within the switching device compartment ( 3 ) are included, together with the switching device ( 37 ), the current and voltage sensors ( 36 ), the position sensors for interlocking, a human machine interface (HMI) and an Intelligent Electronic Device (IED) ( 4 ) and the related local configuration point ( 32 ) to configure the IED ( 4 ). The IED ( 4 ) realizes functional unit supervision, control, protection, communication and monitoring and acts as a concentrating point of functional unit information and decisions. The switchboard ( 1 ) of the invention further comprises power supply section, an I/O section and a communication system.
1. An integrated Medium Voltage switchboard, comprising a functional unit that further comprises:
a switching device compartment;
a switching device;
a power supply section;
an I/O section;
an Intelligent Electronic Device; and
a communication section,
wherein the Intelligent Electronic Device is physically located in said switching device compartment, on-board said switching device;
wherein said Intelligent Electronic Device performs monitor, protection and control activities of said functional unit;
wherein said Intelligent Electronic Device collects, concentrates and manages all information from different parts of said functional unit;
wherein said Intelligent Electronic Device comprises at least:
a control unit;
a I/O functional block, which realizes the conditioning and conversion of signals exchanged between said control unit and the rest of said functional unit;
a power supply block, which realizes the conditioning and adaption of power supply received from the rest of the power supply section of said functional unit;
a power drive block, which manages the energy supply of an actuator of said switching device; and
a communications block, which allows the Intelligent Electronic Device to exchange information with the rest of said functional unit and of said switchboard.
2. An integrated Medium Voltage switchboard according to claim 1 , wherein said Intelligent Electronic Device comprises a Human Machine Interface block forming a Human Machine Interface for said functional unit.
3. An integrated Medium Voltage switchboard according to claim 2 , wherein said Human Machine Interface block is located on a cover of said switching device compartment.
4. An integrated Medium Voltage switchboard according to claim 1 , wherein said power supply section comprises a self supply unit.
5. An integrated Medium Voltage switchboard according to claim 1 , wherein said power supply section comprises an auxiliary supply unit.
6. An integrated Medium Voltage switchboard according to claim 1 , wherein said I/O section comprises voltage and current sensors on-board said switching device.
7. An integrated Medium Voltage switchboard according to claim 1 , wherein said communication section comprises a station communication system.