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Power system protection is a branch of electrical power engineering that deals with the protection of electrical power systems from faults [citation needed] through the disconnection of faulted parts from the rest of the electrical network. The objective of a protection scheme is to keep the power system stable by isolating only the components ...
The isolation procedure generally includes the following tasks: [2] Announce shut off; Identify the energy sources; Isolate the energy sources; Lock and tag the energy sources; Prove that the equipment isolation is effective; The locking and tagging of the isolation point lets others know not to de-isolate the device.
An LPCI is an emergency system which consists of a pump that injects a coolant into the reactor vessel once it has been depressurized. In some nuclear power plants an LPCI is a mode of operation of a residual heat removal system, also known as an RHR or RHS but is generally called LPCI. It is also not a stand-alone valve or system.
Switchgear. A section of a large switchgear panel. This circuit breaker uses both SF 6 and air as insulation. In an electric power system, a switchgear is composed of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment. Switchgear is used both to de-energize equipment to allow work ...
Earthing systems. v. t. e. An earthing system (UK and IEC) or grounding system (US) connects specific parts of an electric power system with the ground, typically the equipments conductive surface, for safety and functional purposes. [ 1] The choice of earthing system can affect the safety and electromagnetic compatibility of the installation.
An isolation transformer is a transformer used to transfer electrical power from a source of alternating current (AC) power to some equipment or device while isolating the powered device from the power source, usually for safety reasons or to reduce transients and harmonics. [1] Isolation transformers provide galvanic isolation; no conductive ...
Carbon capture and storage ( CCS) is a process in which a relatively pure stream of carbon dioxide (CO 2) from industrial sources is separated, treated and transported to a long-term storage location. [ 2]: 2221 In CCS, the CO 2 is captured from a large point source, such as a chemical plant, coal power plant, cement kiln, or bioenergy plant ...
An emergency power system is an independent source of electrical power that supports important electrical systems on loss of normal power supply. A standby power system may include a standby generator, batteries and other apparatus. Emergency power systems are installed to protect life and property from the consequences of loss of primary ...