Technical Calculator

Transformer Calculator

Select the parameters and enter their values. The calculator will immediately calculate voltage, current value, and other transformer-related terms.

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Transformer?

A transformer operates to supply modern-day from one AC circuit to at least one or greater AC circuits. This factor works consistent with Faraday’s Law of Electromagnetic Induction to both step up or down the voltage.

formulation:

Voltage Equation:

\(V_p = N_p / N_s × V_s\)

Where:

  • \(V_p\) = Primary Coil Voltage
  • \(V_s\) = Secondary Coil Voltage
  • \(n_p\) = Number of Turns on Primary Coil
  • \(n_s\) = Number of Turns on Secondary Coil

equal cutting-edge Equation:

\(I_s=I_p*\dfrac{N_p}{N_s}\)

Load Currents:

Single-Phase:

\(Full-Load Current (Amps)= kVA × 1000 / V\)

Three-Phase:

\(Full-Load Current (Amps) = kVA × 1000 / (1.732 × V)\)

Turns Ratio:

\(Turns Ratio = N_1 / N_2 = V_1 / V_2 = I_2 / I_1\)

Transformer Amperage Chart:

Single Phase Transformers, Full Load Amperes (FLC):

KVA 120V 208V 240V 277V 480V 600V
.25 1.2 1. 0.9 0.5 0.4
.50 4.2 2.4 2.1 1.8 1.0 0.8
.75 6.3 3.6 3.1 2.7 1.6 1.3
1 8.3 4.8 4.2 3.6 2.1 1.7
1.5 12.5 7.2 6.2 5.4 3.1 2.5
2 16.7 9.6 8.3 7.2 4.2 3.3
3 25 14.4 12.5 10.8 6.2 5
5 41 24 20.8 18 10.4 8.3
7.5 62 36 31 27 15.6 12.5
10 83 48 41 36 20.8 16.7
15 125 72 62 54 31 25
25 206 120 104 90 52 41
37.5 312 180 156 135 76 62
50 416 240 208 180 104 83
75 625 340 312 270 156 125
100 833 480 416 361 208 166
167 1391 803 695 603 347 278

Three Phase Transformers, Full Load Amperes (FLC):

KVA 208V 240V 480V 600V
3 8.3 7.2 3.6 2.9
6 16.6 14.4 7.2 5.8
9 25 21.6 10.8 8.6
15 41.7 36.1 18.0 14.4
30 83.4 72.3 36.1 28.9
45 124 108 54.2 43.4
75 208 180 90 72
112.5 312 270 135 108
150 416 360 180 144
225 624 541 270 216
300 832 721 360 288
500 1387 1202 601 481
750 2084 1806 903 723
1000 2779 2408 1204 963

Insulation Class and Temperature Rise:

KVA Insulation
1 Phase 3 Phase NEMA Class Temperature Class Temperature Rise
0.25-25 3-15 F 180° C 115° C
15-167 15-1000 H 220° C 150° C
Property Description
Definition A transformer is an electrical device that transfers electrical energy between circuits through electromagnetic induction.
Formula for Voltage V₂ = (N₂ / N₁) × V₁
Formula for Current I₂ = (N₁ / N₂) × I₁
Variables V₁ = Primary voltage (V)
V₂ = Secondary voltage (V)
N₁ = Primary turns
N₂ = Secondary turns
I₁ = Primary current (A)
I₂ = Secondary current (A)
Example Calculation If N₁ = 500, N₂ = 1000, and V₁ = 120V, then V₂ = (1000/500) × 120 = 240V.
Power Conservation Transformers obey the equation P₁ = P₂ (P = V × I), assuming ideal efficiency.
Step-Up Transformer Increases voltage (N₂ > N₁), commonly used in power transmission.
Step-Down Transformer Decreases voltage (N₂ < N₁), used in household appliances.
Efficiency Efficiency (%) = (P₂ / P₁) × 100, typically above 95% for well-designed transformers.
Application Used in power grids, electronic circuits, industrial machines, and renewable energy systems.

FAQs.

What is a Transformer Calculator.

An Electromagnetic Adjustment Gauge is an instrument for assessing various electrical characteristics of a transformer, including voltage, current, turn ratio, and power output. "Supports creating and assessing transformer models for various uses, ensuring they work well and use energy effectively.

How does a transformer work.

A transformer operates based on electromagnetic induction. It consists of primary and secondary windings wrapped around a core. When alternating current (AC) traverses the primary coil, it engenders an electromagnetic field that provokes voltage in the secondary coil, converting the voltage magnitude.

Why are transformers used in electrical systems.

Transformers adjust voltage levels, increasing or decreasing them for power delivery. Transmitting power at high voltage helps save energy when traveling far apart, and step-down transformers shrink this high voltage to a safer level for homes and factories.

What is the transformer turns ratio.

The turn ratio represents the quotient obtained by dividing the quantity of spirals in the initial coil by the quantity in the secondary coil. It determines the voltage transformation. If the primary coil surrenders more coiled loops than the secondary, it lowers energy force; if not, it boosts energy force.

How is transformer efficiency calculated.

Transformer efficiency is determined by comparing output power to input power. Efficiency = Output Power ÷ Input Power × 100High-quality transformers typically have efficiencies above 95%, minimizing energy losses.

What are the different types of transformers.

Different kinds of transformers exist, such as voltage-increasing, voltage-reducing, separation, self-transformers, and multiphase transformers. 'Every component has a distinct function within electricity transmission, factory processes, and electronic pathways.

What is transformer impedance.

Transformer impedance represents the opposition to AC flow within the transformer. It affects voltage regulation and short-circuit currents. "Lower resistance enhances voltage control, whereas greater resistance ensures more effective circuit protection.

What is a step-up transformer.

A voltage-increasing transformer elevates electric potential from the initial coil to the secondary coil while reducing the electric flow. It is widely employed in electricity supply networks to diminish wastage during extended line delivery.

What is a step-down transformer.

A low-voltage transformer lessens the voltage from input winding while augmenting current. It's commonly used in things like home gadgets, factory equipment, and electricity devices to ensure they work properly.

What is the difference between single-phase and three-phase transformers.

Individual-phase transformers function using a solitary alternating voltage sequence, appropriate for domestic and modest-scale utilization. Three-phase motors manage three alternating currents, delivering enhanced electric distribution for manufacturing and business needs.

How does a transformer affect power loss.

Transformers lose energy because of core losses (called hysteresis and eddy currents) and copper losses (known as winding resistance). Use appropriate layout, superior substances, and chilling mechanisms reduce waste, enhancing performance.

What is the role of transformer cooling.

Transformers generate heat due to energy losses. Cooling techniques, namely moving air, oil soaking, and powered fans, aid in lowering temperature, avoiding too much heat, and making electrical transformers last longer.

Can transformers work with DC power.

No, transformers require alternating current (AC) to function. Direct current does not result in altering magnetic flux, which are essential for electrical conversion. Special circuits such as inverters are required to transform DC to AC prior to employing transformers.

What factors should be considered when selecting a transformer.

'Essential elements incorporate voltage specification, current ability, energy measure, vibrational rate, chill procedure, and effectiveness. 'In this rewrite, all original synonyms were replaced with their corresponding synonymous terms while still conveying the same concepts as presented in the initial sentence. "Selecting the proper transformer guarantees secure, steady, and productive functioning within electrical setups.

How does a Transformer Calculator simplify transformer design.

A Voltage Analysis Device instantly determines crucial factors such as voltage levels, electric current, energy dissipation, and effectiveness. It conserves time, improves precision, and assists technicians in refining transformer efficiency for diverse uses.