The recommended voltage input for a 24 VAC transformer is typically around 120 volts.
15/600 * 200
qsq
48*2.2 = 105.6VA
You can use a transformer with a turns ratio of 24:5 to convert 24 VAC to 5 VAC. This means the primary winding has 24 turns for every 5 turns on the secondary winding, which will step down the voltage proportionally. Make sure the transformer is rated for the appropriate power and frequency.
A1: Usually this is in reference to a transformer that either steps up or steps down the Line Voltage. For example if your house line voltage was 120 VAC and this voltage was attached to the input (Primary) or a transformer, the output side of the transformer might step up the voltage to 240 VAC. This would be called line out voltage on the secondary of the transformer. A2: In case the question was related to audio signalling and amplification, Line In and Line Out are low level inputs and outputs of audio signals, often using RCA phono jacks, such as what is connected between a tape deck or CD player and your mixer or amplifier with coaxial cables.
The terminology would typically reference a device such as a power supply, charger, diverter or transformer. The Input Voltage is the voltage supplied to the device to make it work. The Output Voltage is what the device supplies to an application. For example, a power supply for a laptop might convert 120 VAC to a voltage like 19.5 volts (A Sony Laptop) for charging a laptop battery.
No, a device designed to work on 50 Hz/60 Hz at 120 VAC will not work on 220 VAC without a voltage converter or transformer. The difference in voltage can damage the device and may not function properly. Always ensure that the device is compatible with the voltage and frequency of the power supply before connecting it.
Check the label on the power module "brick" that was supplied with your Acer to see what voltage input range it will accept. Generally speaking, the power supplies nowadays have "universal input" such that it will accept an input voltage from 90 VAC to 240 VAC. If that's the case on your power module, you should only need a suitable input cord that is compatible with the Japanese power system. Normal line voltage in Japan is 100 VAC at 60 Hertz frequency.
Transformers that operate specific devices should be matched to the specific voltage on the device that the manufacturer specifies.
In the United States, 110-120/240 VAC is the standard.
Yes, it is possible to get 115VAC from a 110VAC source by using a transformer with a step-up ratio. The transformer will increase the voltage level to 115VAC while maintaining the same frequency.
The transformer size is calculated by using the load current that is required on the secondary side of the transformer. This secondary current is multiplied by the secondary voltage times 1.73. This total is then divided by 1000 to give you KVA. KVA = I x E x 1.73/1000.