A five-tonne cargo which is required to lift a load of 5 tonnes at 36.5m/min. Calculate the power rating of the 220V driving motor if the efficiency of the winch gearing is 75 per cent and that of the motor can be taken as 85 per cent. Calculate also the current taken from the ship’s 220V mains.

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A five-tonne cargo which is required to lift a load of 5 tonnes at 36.5m/min. Calculate the power rating of the 220V driving motor if the efficiency of the winch gearing is 75 per cent and that of the motor can be taken as 85 per cent. Calculate also the current taken from the ship’s 220V mains.

Home/ College/A five-tonne cargo which is required to lift a load of 5 tonnes at 36.5m/min. Calculate the power rating of the 220V driving motor if the efficiency of the winch gearing is 75 per cent and that of the motor can be taken as 85 per cent. Calculate also the current taken from the ship’s 220V mains.