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Types of relay microprocessor protection
ELECTRIC CABINETS
●Distribution boards; ● Main distribution cabinets; ● Automatic reserve input; ● Lighting distribution cabinets; ● Operating current cabinets.
AUTOMATION PANELS
● Excitation of synchronous generators; ● Control of drive systems; ● Movement system control; ● Cabinets with controllers; ● Reserve power supply; ● Cabinets with HMI and PC; ● Servers; ● Cabinets of data collection from photovoltaic power stations; ● Video surveillance cabinets.
REACTIVE POWER COMPENSATION
● Adjustable by controller; ● Local (for engines, generators); ● Medium voltage (6, 10 kV); ● High-speed (on solid-state switches); ● With protection against higher-order harmonics.
EXCITATION BOARDS
Synchronous generator excitation systems:● reconstruction of the existing devices for machine excitators;● reconstruction of shunt excitation;● introduction of thyristor static excitation from the power of the distribution board for in-house needs;● introduction of thyristor static excitation from the power of generator busbars;● introduction of thyristor static excitation with simultaneous operation from an independent source for autonomous generator operation.
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