Hydraulic Power Supplies encompasses the generation and conditioning of pressurised hydraulic power within aircraft systems, covering engine-driven pump (EDP) interfaces, electric motor-driven pump (EMDP) units, power transfer units (PTUs), and ram air turbine (RAT) driven sources, together with associated pressure regulation, flow conditioning, and system monitoring instrumentation operating to typical aerospace hydraulic system pressures of 3,000 or 5,000 psi.
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