Blog

In brief – Power autotransformers

Autotransformers are a special type of power transformers that feature a single winding wound onto a laminated core. They are used to either step up or step down the voltage. They’re similar to two-winding transformers. However, their differences lie in how the primary and secondary winding are interrelated. Types of autotransformer Autotransformers are broadly categorized into two …

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Selecting the optimum cores for SMPS transformers

The selection of the magnetic components, especially transformer cores, to be used in a Switch Mode Power Supply (SMPS) design is the most crucial element. Core choice is generally based upon the application’s power requirements, the switching topology, and the frequency required. The power requirement and choosing the suitable topology of SMPS’ is the first …

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Evaluating Insulation Integrity: Partial Discharge

One of the primary functions of a magnetic transformer is to provide isolation between two sections of an electronic circuit. This isolation is required to comply with a specific safety specification or protect sensitive circuits from high voltages or fluctuations. In brief, the isolation required is set by the voltage present in the circuit and …

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Choosing a Current or Potential Transformer

When measuring AC currents and voltages of high magnitude, we often take for granted clamp and amp meters. However, the question is, how are these portable measuring instruments able to step down the magnitude to a standard range instrument? How can the original magnitude be determined by just multiplying the result with the transformation ratio? …

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Zatka Machine Transformers

One of the biggest challenges any livestock owner or farmer faces is selecting the proper fencing and equipment for their operation’s needs. Electric fencing should not only keep animals in or out and establish farm boundaries; it should also keep predators and unwanted visitors out. This article will put out some important buying aspects of …

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Why are all transformer manufacturers not the same?

Transformers are the most critical element of almost all electrical systems, so choosing the most trusted, reliable, and experienced manufacturer becomes difficult. There are various transformer types available, each having a unique construction, a unique working, and a unique purpose of solving. And, every different kind of transformer requires appropriate skill and specializations. Every transformer …

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Non applicability of higher TDS rate

Dear Customer, The Government of India (GoI) has introduced section 206AB in the Income-tax Act, 1961 (Act), which mandates higher Tax Deducted at Source (TDS) in case of non-filing of income tax returns (ITR) by a taxpayer for two immediately preceding financial years (FY). The new provisions are applicable from July 1, 2021. In case of …

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Price increase and strategic review

Dear Customers, Trust that you and your family are staying safe during this challenging time. The ongoing COVID-19 pandemic continues to create challenges thought-out the world economy, including the mineral and metal-dependent transformer industry. At Shreejee Electronics, among other challenges, many of our material suppliers are struggling to meet our demand – resulting in cost …

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Safety Tips: Caring for Transformers

any electrical hazards can be prevented by following some easy-to-follow caring tips for transformers. Below are some general electricity safety precautions every transformer manufacturer and end-user should know and follow. Always remember to ask a professional if you’re uncertain about the safety of a high voltage transformer. This blog post is Part 2 of the …

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