Not yet available
Transformer sizing
Load list → required kVA → recommended standard rating (R10), with current and reactive compensation.
Preparation
The exact input requirements follow the required fields on the tool page.
From equipment conditions to a verifiable selection basis
Transformers & reactors
What this is
Organise the transformer and reactor conditions, and confirm the data each analysis target needs.
Who it is for / at what stage
For equipment data preparation and early scheme discussion.
What you can review
Review the matching calculation or check results, the inputs and any unconfirmed items. The actual output depends on the tool once it is wired up.
Boundaries
A single result does not prove the whole scheme compliant, the equipment suitable or the work ready to build. Site conditions, manufacturer data and specialist review still apply.
Next step
Choose what you need to check
Read the scope and input requirements first, then open the matching tool. No tool replaces another's engineering check.
Not yet available
Series reactor calculator
Current-limiting effect of a series reactor (IEC 60909): Ik with/without, reduction, terminal voltage, ±10% tolerance sweep.
Preparation
The exact input requirements follow the required fields on the tool page.
Not yet available
Core flux density calculator
Enter the winding design data (E_rms, f, N, core section A_c) and get the peak flux density Bm, or enter a target Bm and get the turns or the core section needed - no scheme required.
Preparation
The exact input requirements follow the required fields on the tool page.
Not yet available
Loss / temperature rise / core flux
Transformer winding temperature rise and hot spot (IEC 60076-7), loss split between iron and copper, and the reactor fault-current waveform with the core saturation characteristic (IEC 60909-0). No scheme needed.
Preparation
The exact input requirements follow the required fields on the tool page.
Not yet available
Transformer thermal-model calculator
Enter the cooling method, rated losses, a loading curve and the ambient temperature; the engine returns top-oil and hot-spot temperature-rise curves and flags them against a hot-spot limit - no scheme needed.
Preparation
The exact input requirements follow the required fields on the tool page.
Not yet available
Temperature-rise criteria
Top-oil, winding and hot-spot temperature rise to {p1} against the rated rises and the hot-spot limit - no scheme needed.
Preparation
The exact input requirements follow the required fields on the tool page.
Not yet available
Load-rate / loss curve
Transformer loss against load rate, curve and composition, from the engine sweep - no scheme needed.
Preparation
The exact input requirements follow the required fields on the tool page.
Not yet available
No-load / load loss & efficiency
No-load loss P0, load loss Pk and the total loss, load-zone verdict, temperature rise and annual energy loss at your real load — to GB 20052-2020, no scheme required.
Preparation
The exact input requirements follow the required fields on the tool page.
Status
Tools that are not open yet are rendered non-clickable per site rules; no link that would 404 is provided.
A page existing does not mean the function is accepted; results still need review against the applicable conditions.
Preparation
Prepare the data, then choose a tool
Equipment data and operating conditions; the exact fields are defined by each tool.
List missing data as to-be-confirmed first; never invent parameters just to enter a flow.
Confirm voltage, equipment and operating conditions
Separate existing data, assumptions and inputs that still need confirmation.
Keep the source and unit of each parameter
Use nameplate, design or measurement records; do not compare values of different conventions directly.
Check the required fields for the chosen tool
Having data is not completeness; completeness comes from checking fields, units, relations and scope of use.
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Calculation toolsSolutionsOutputs & selection
Selection & designTransformers & reactors
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