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A 1-phase tranformer has a leakage impedance of 1+ j4 Ω for primary and 3+ j11 Ω for secondary windings. This transformer has
- a)H.V primary
- b)Medium voltage primary
- c)L.V primary
- d)L.V secondary
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
A 1-phase tranformer has a leakage impedance of 1+ j4 Ω for prim...
Understanding Transformer Impedance
To determine the type of primary winding in a transformer, we analyze the leakage impedances provided for both the primary and secondary windings.
Leakage Impedance Values
- **Primary Winding Impedance:** 1 + j4 Ω
- **Secondary Winding Impedance:** 3 + j11 Ω
The leakage impedance is significant as it reflects the winding's ability to resist current flow due to leakage flux.
HV, MV, and LV Definitions
- **H.V (High Voltage) Primary:** Typically above 33kV
- **M.V (Medium Voltage) Primary:** Ranges from 1kV to 33kV
- **L.V (Low Voltage) Primary:** Usually below 1kV
Analysis of the Given Values
- The primary leakage impedance of 1 + j4 Ω indicates a relatively low impedance, suggesting that the transformer is likely designed for lower voltage applications.
- The higher secondary leakage impedance (3 + j11 Ω) implies more resistance and reactance, which is common in secondary windings.
Conclusion: Identifying the Transformer Type
Given the low primary leakage impedance, it indicates that the primary winding operates at a lower voltage level, thus categorizing it as:
- **L.V Primary:** This is supported by the low values of impedance, which are characteristic of low voltage applications.
Therefore, the correct answer is **L.V primary (option 'C')**.
This analysis shows that the operational characteristics of a transformer, particularly the impedance, are essential in classifying its voltage type.
To determine the type of primary winding in a transformer, we analyze the leakage impedances provided for both the primary and secondary windings.
Leakage Impedance Values
- **Primary Winding Impedance:** 1 + j4 Ω
- **Secondary Winding Impedance:** 3 + j11 Ω
The leakage impedance is significant as it reflects the winding's ability to resist current flow due to leakage flux.
HV, MV, and LV Definitions
- **H.V (High Voltage) Primary:** Typically above 33kV
- **M.V (Medium Voltage) Primary:** Ranges from 1kV to 33kV
- **L.V (Low Voltage) Primary:** Usually below 1kV
Analysis of the Given Values
- The primary leakage impedance of 1 + j4 Ω indicates a relatively low impedance, suggesting that the transformer is likely designed for lower voltage applications.
- The higher secondary leakage impedance (3 + j11 Ω) implies more resistance and reactance, which is common in secondary windings.
Conclusion: Identifying the Transformer Type
Given the low primary leakage impedance, it indicates that the primary winding operates at a lower voltage level, thus categorizing it as:
- **L.V Primary:** This is supported by the low values of impedance, which are characteristic of low voltage applications.
Therefore, the correct answer is **L.V primary (option 'C')**.
This analysis shows that the operational characteristics of a transformer, particularly the impedance, are essential in classifying its voltage type.
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Community Answer
A 1-phase tranformer has a leakage impedance of 1+ j4 Ω for prim...
- The given impedance values indicate the leakage impedances of the transformer windings. The primary winding has a leakage impedance of 1 + j4 Ω, and the secondary winding has a leakage impedance of 3 + j11 Ω.
- In a transformer, the primary winding is connected to the higher voltage side, while the secondary winding is connected to the lower voltage side. Therefore, based on the given impedance values, we can conclude that the primary winding of this transformer has a low voltage (L.V) rating.
- Since the primary winding is specified as L.V (low voltage) and there is no information given about the secondary winding, we cannot determine the voltage rating of the secondary winding. Therefore, option D: L.V secondary, cannot be inferred from the given information.
- Hence, the correct answer is C: L.V primary.
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A 1-phase tranformer has a leakage impedance of 1+ j4 Ω for primary and 3+ j11 Ω for secondary windings. This transformer hasa)H.V primaryb)Medium voltage primaryc)L.V primaryd)L.V secondaryCorrect answer is option 'C'. Can you explain this answer?
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