Substation protection screen, monitoring and control screen DC, AC voltage is generally how much? Is there a requirement?
Power supply, DC DC220V, AC three-phase AC380V, single-phase AC220VPT secondary AC voltage 100VCT secondary AC current 5A or 1A
Design procedures are provided, generally into the protective screen voltage should not be higher than 220V. And the voltage from the PT is 100V, so the protection of the AC voltage within the screen is generally only 220V (for relay protection power), or 100V (for voltage protection signal input)
DC power supply: DC110V, DC220V. AC power: AC380 / 220V.PT Circuit: 100 / 57.7V.CT Circuit: 5A, 1A
