Why AC evaluated in Tons, Not in kW?

Air conditioning (Air-conditions and Refrigeration are constantly evaluated in Tons)

Forced air systems

These systems are constantly evaluated in Tons capacity instead of kW since Air conditioners are planned based on the amount of warmth expulsion from the room, lobby or explicit region. Amount of warmth is named in Tons implies if a forced-air system can expel 1000 kilo calories of warmth or 4120 kilojoules or 12000 BTU of warmth in an hour that AC evaluated as 1 Ton of AC since 1000 Kilocalories or 4120 kilojoules or 12000 BTU equivalent to one Ton of warmth. Additionally, this is a similar case for cooler and icebox for example refrigeration framework.

Great to know:

BTU = British warm unit. An estimation of warmth, explicitly, the measure of warmth expected to raise the temperature of a pound of water by 1°F.

Meaning of Ton

A Ton of refrigeration (RT) is roughly equal to 12,000 BTU/h or 3,516.8528 W or 4.7142Hp.

A Ton of refrigeration (RT) is a unit of intensity used to portray the warmth extraction limit of cooling and refrigeration types of gear. It is characterized as the warmth of the combination consumed by softening 1 short ton of unadulterated ice at 0 °C (32 °F) in 24 hours.

What number of kW and HP are there in 1 Ton?

1 Ton = 3.5168525 kW = 4.714Hp

Clarification

1 Ton = 12,000 BTU/h

1 Watt = 3.412141633 BTU/h

1 Ton = 12,000/3.412141633 = 3,516.8528 Watts = 3.5168528 kW.

1 Ton = 3,516.8528 Watts = 3.516 kW.

Too

1 Ton = 3,516.8528W/746 = 4.7142798928 Hp →→→ (1 Hp = 746 Watts)

1 Ton = 4.714 Hp

How to change over Tonto Kw and the other way around?

One RT(Refrigeration Ton) = 3.5168528 kW…

1 RT = 3.5168528 kW

1 kW = 0.284345 RT(Refrigeration Ton)

1 kW = 0.28434517 RT

In this way,

The power P in kW = Power P in RT (Refrigeration Ton) times 3.5168528….

P(kW) = P(RT) × 3.5168528

Model

Convert 3 Ton AC into kW for example Convert 3 RT to kW.

Arrangement:

P(kW) = 3 RT × 3.5168528

P(kW) = 10.55 kW

3 Ton AC = 10.55 kW

The amount Current in Ampere will a 2 Tons AC attract Single Phase and Three Phase System?

Assume, There are 230V and Power factor = Cosθ = 0.95 in Single Phase AC framework…

1 Ton = 3,516.8528 Watts = 3.516 kW.

2 Ton = 2 x 3.516 kW = 7.032kW = 7032W

Power in a Single Phase AC System

P = VxI Cosθ and current…

I = P/(V x Cosθ)… .. Where Cosθ = Power factor

I = 7032W/(230V x .95)

I = 32.18 A

In this manner, a 2 Ton AC (Air-condition in Single Phase AC framework will take 31.18 Ampere Current

And Three Phase System

Assume, There are 440V and Power factor = Cosθ = 0.85 in Three-Phase AC framework…

Power in a Three-Phase AC System

P =√3 x VLxIL Cosθ and current… .

I = P/( √3xVxCosθ)

I = 7032W/(1.732 x 440V x .85) Where Cosθ = Power factor and √3 = 1.732

I = 10.855 A

In this way, a 2 Ton AC (Air-condition in Three-Phase AC framework will take 10.855 Ampere Current

Great to Know: This is simply figuring dependent on Electrical equations. In genuine, Air conditioner current depends a great deal on working conditions, for example, the surrounding temperature, refrigerant weight, Energy Efficiency Ratio (EER) and so on for example, if EER is 6, at that point info control for 2 Tons Air conditioner is 24000BTU/6 = 4000 watts.

On the off chance that this is a 230-volt framework, at that point forced air system load current would be = 4000/(230x.95) = 18.5 A

For more detail… Check the Air conditioner Nameplate rating.

Another comparable rating is Coefficient of intensity (COP) which is the yield control in watts partitioned by information control, so with a COP = 1.8, for example, input control for 2 Tons Air conditioner is 7032W/1.8 = 3906 watts. Presently you can discover current by utilizing the above strategy which is equivalent to 18A approx.

What number of 2 Ton A.C (Air conditioner) would I be able to keep running on a 25 kVA Generator?

2 Ton = 2 x 3.516 kW = 7.032kW = 7032W

The Efficiency of Utility Power Generator is 90% around.

Proficiency of Generator = 25kVA x (90/100) = 22.5kVA

Presently the Number of 2 Ton AC (Air conditioners) which you can keep running on a 25 kVA Generator easily.

22.5kVA/7032W

= 3

So you can run Three Air conditioners of 2 Tons each on a 25kVA Generator.

What is the reasonable rating of MCB for 2 Ton and 1 Ton AC (Air conditioner) and why?

As we have determined the heap current for 2 Ton AC Air conditioner…

Determined Current for 2 Ton A.C = I = 32.18 A

Presently 40A Class "C" MCB (scaled-down electrical switch) would be appropriate for 2 Ton AC (cool) because in beginning time it takes increasingly flow of the full burden flow

What's more, 20 A Class "C" MCB would be better for 1 Ton AC (cool)

Great to Know:

Class "'C' Type MCBs

Class "C" Type MCBs are reasonable for establishments with the high inrush of current at the beginning exchanging time. at the end of the day, hardware and gadgets having inductive loads, for example, forced air systems, enlistment engines, fluorescent lights, transformers etc.

What can we use for a single line diagram?

In electrical engineering, a one-phase diagram or single-line diagram (SLD) is a simplified notation to represent a three-phase power system.

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The one-line diagram has its greatest application in power flow studies. Electrical elements such as circuit breakers, transformers, capacitors, bus bars, and conductors are shown by standardizing schematic symbols. Instead of representing each of the three phases with a separate line or terminal, only one conductor is represented.

This is in the form of block diagram illustration illustration

The path for power flow between system entities. The elements on the diagram do not represent the physical shape or location of the electrical device, but a general convention is to arrange the diagram with the same left to right, top to bottom sequence

Represented switchgear or other equipment.

A high-line diagram can also be used to show a high-level view of a drain for a PLC control.

system.

The balanced system theory of three-phase power systems tells us that as long as the load on each of the three phases is balanced, we can consider each phase separately. In electrical engineering, this notion is often useful, and for all to consider

The three phases require more effort with very little potential benefit.

An important and often

• The exception is only an odd problem in one or two phases of the system.
• One-line diagrams are commonly used with other notable simplifications, such as per-unit system.
• A secondary advantage of using a one-line diagram is that the simple diagram leaves more
• Location for non-electric, such as economic, information to be included.

In unbalanced systems,

When using the symmetric components method, there are different one-line diagrams.

Each is designed for positive, negative and zero-sequence systems. This simplifies the analysis of unbalanced conditions of a polyphase system.

Electrical equipment for which there are different constraints

Different phase sequences are identified in the diagrams.

For example, a generator would normally have different positive and negative sequences.

Impedance and some transformer winding connections block zero-sequence currents.

The unbalanced system can be solved in three single line diagrams for each sequence and is interconnected to show how unbalanced components add to each part of the system.

What is the main difference between electrical and electronics?

We know that the term electronics has its origin from the invention of the diode and triode valves from electricity. Therefore we can define electronics in terms of electronics as a branch of electrical that studies about an active electrical device with a passive device which is known as electronics.

Some used to say - the study of high voltage AC and AC devices is called electrical while the study of low voltage DC and DC devices is called electronics.

This is partly true, but not absolute because in power electronics we control high voltage AC power using active electronic devices such as SCR, Triac, etc., so the branch is called power electronics and not electrical.

If you glow an ordinary 3v filament bulb, it is not part of the electronics, while it is part of the electromagnet, using battery DC.

Electrical also studies the magnetic and heating effects of electricity. Electronics may also include magnetic and thermal measurements but active devices must include this.

Controlling the light intensity of the 3v filament bulb using a rheostat comes in electrons while controlling the light intensity of the 3v filament bulb using transistors and presets comes into the electronics.

Some people used to say - electrical equipment manages the flow of electricity and electronic example manages the flow of information. This is true whether they work with AC or DC.

For example, we can say that a DC supply, such as a cell, is an electrical device because it is designed to manage the flow of power. Remember that television is an electronic device because its electronic circuits manage the flow of information in the form of sounds and pictures.

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