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How many 120 volt 7 amp draw lights can be run on a 15 kva single phase transformer?
To determine how many 120-volt, 7-amp lights can be run on a 15 kVA transformer, first convert the transformer capacity to watts: 15 kVA equals 15,000 watts. Each light draws 120 volts * 7 amps = 840 watts. Dividing the transformer capacity by the wattage of each light gives 15,000 watts / 840 watts per light ≈ 17.86. Therefore, you can run a maximum of 17 lights on a 15 kVA transformer.
How much does it cost to run electric 185 watts per hour?
185 watts will use up 185 watt-hours every hour. That is 0.185 kilowatt-hours each hour, costing about £0.03
How much will it cost to run a 185 watts per day?
To calculate the cost of running a device that consumes 185 watts per day, you need to know the cost of electricity per kilowatt-hour. Assuming an average cost of $0.12 per kWh, running a 185-watt device for 24 hours a day would cost about $0.50 per day (185 watts / 1000 * 24 hours * $0.12).
How much does it cost to run a 75 watt CFL bulb?
the rule is.... run 100 watts 24/7 for 100.00/year. Your cfl will cost apx.75/year. However, while your cfl only uses 75 watts it is equivalent to apx 350 watts and produces a broad variety of colors in the spectrum making it great for growing!
How much does it cost to run a 400 watt halogen light if 14pence per KW?
To calculate the cost of running a 400-watt halogen light, first convert watts to kilowatts: 400 watts is 0.4 kW. If the cost is 14 pence per kWh, the cost to run the light for one hour would be 0.4 kW × 14 pence = 5.6 pence. Therefore, it costs approximately 5.6 pence for each hour of operation.
How many 120 volt 7 amp draw lights can be run on a 15 kva single phase transformer?
To determine how many 120-volt, 7-amp lights can be run on a 15 kVA transformer, first convert the transformer capacity to watts: 15 kVA equals 15,000 watts. Each light draws 120 volts * 7 amps = 840 watts. Dividing the transformer capacity by the wattage of each light gives 15,000 watts / 840 watts per light ≈ 17.86. Therefore, you can run a maximum of 17 lights on a 15 kVA transformer.
What size of 12v transformer will run 500watts?
To run a 500-watt load with a 12V transformer, you need to calculate the current required using the formula: Current (Amps) = Power (Watts) / Voltage (Volts). For 500 watts at 12 volts, that would be approximately 41.67 amps (500W / 12V). Therefore, you should select a transformer rated for at least 500 watts, but it's advisable to choose one with a higher capacity (e.g., 600-700 watts) to ensure it can handle the load safely and accommodate any inrush currents.
How much does a plasma screen tv cost to run?
This information would be on the back of the screen. look for a number with the word WATTS after it. I would guess something between 120 and 190 watts.
How much does it cost to run a computer for 50 hours in a week if the monitor runs on 140 Watts and the tower runs on 260 Watts and the Electric Company charges 11.2 cents per kilowatt-hour?
It would cost $2.24 in electricity to run the computer 50 hours in a week.
How much does it cost to run a 100 horsepower electric motor?
A 100 horsepower electrical motor would consume 74,600 watts.
How much does it cost to run electric 185 watts per hour?
185 watts will use up 185 watt-hours every hour. That is 0.185 kilowatt-hours each hour, costing about £0.03
Is it dangerous to run an appliance with more watts than the transformer?
A transformer has a rating that is usually expressed in KVA. This is approximately a wattage rating. It is not dangerous but it can be the cause of some concern. An appliance has a set current that is draws. This current times the voltage is the appliance's wattage. The same goes for the transformer. It only has a certain capacity to supply a specific current that is governed by its KVA (watts). Driving the transformer beyond its rated capacity tends to heat the transformer beyond its working temperature. If left in this over current draw the transformer's windings insulation will break down and the windings will short circuit. This is usually the end of a working transformer. So short answer, more watts (amps) from appliance equals burned out transformer.
How much will it cost to run a 185 watts per day?
To calculate the cost of running a device that consumes 185 watts per day, you need to know the cost of electricity per kilowatt-hour. Assuming an average cost of $0.12 per kWh, running a 185-watt device for 24 hours a day would cost about $0.50 per day (185 watts / 1000 * 24 hours * $0.12).
How much does it cost to run a 75 watt CFL bulb?
the rule is.... run 100 watts 24/7 for 100.00/year. Your cfl will cost apx.75/year. However, while your cfl only uses 75 watts it is equivalent to apx 350 watts and produces a broad variety of colors in the spectrum making it great for growing!
How much does it cost to run a 400 watt halogen light if 14pence per KW?
To calculate the cost of running a 400-watt halogen light, first convert watts to kilowatts: 400 watts is 0.4 kW. If the cost is 14 pence per kWh, the cost to run the light for one hour would be 0.4 kW × 14 pence = 5.6 pence. Therefore, it costs approximately 5.6 pence for each hour of operation.
What does it cost to run a 5.8 amp motor at 120 volts?
Use the following formula to find the watts used. W = Amps x Volts. Divide that number by 1000. This will give you kWs. Determine how long the motor is to run and multiply this amount by the kilowatts you calculated. This will give you kW/hours. On your utility bill it will be stated how much you pay for a kW/h. Multiply that by your answer and you can estimate how much it costs you to operate the motor.
what is the cost of electricty what does it cost to run 1000watts per hour?
1000 watts per hour is a kilowatt hour and is usually 10 cents
