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Hi, I have a question regarding DC-DC converter. I am looking to get 25 kw output 3 phase power from the inverter, with the help of solar panel modules. The inverter requires a DC input voltage of 1000 Vdc (max) and 38A dc (max). i want to step the voltage from 110 V dc, 250 Adc from the solar...

Hi, I have a question regarding the usage of current relays in the circuits. I am planning to install a thermostatic heater along with a current relay circuits to monitor if the heater is working. Since it is thermostatic, it will be operating only during certain temperature ranges. The times...

Hi I am trying to find the logic behind powering an AC device from the output of a fuel cell. I know the fuel cell output voltage is DC and hence we may need a DC-DC converter and an inverter but i am not sure of the stages involved. Can someone explain how to go about it or if theres any good...

Hi, i have a question regarding selection of electrical instruments like compressors, fans, etc. The compressors are available in both three phase and single phase according to the datasheet. How do we select which type we need if we are designing a system from scratch (ie both three phase and...

Hi I have to decide on a circuit breaker for an air 22 KW, 3 phase 400V Air compressor. Load current = P / (1.732 * V *PF) =22000 /(1.732*400*0.8) = 39.69A Imposing the 125% CB rule in accordance with NEC, Current = 39.69*1.25 = 49.61A Therefore a 50 A Type C CB is used. These are my...