Slipring or Squirrel Cage: Picking the Rotor for Crushers, Mills and Crane Hoists A squirrel cage motor on a VFD suits most crane...Read More
Electricals for a Steel Melt Shop, Itemised: Furnace to Caster Every electrical item a steel melt shop needs, itemised by...Read More
IEC 61439 in Plain Terms: What a Type-Tested LV Assembly Means and What Your Panel Builder Must Prove What a type-tested LV panel means under IEC 61439: the...Read More
Vacuum or SF6 at 11 kV, 22 kV and 33 kV: The Decision After the F-Gas Phase-Down Vacuum or SF6 circuit breaker at 11, 22 and 33...Read More
Arc Flash in MV Switchgear: Containment, Sensing, and What Can Actually Be Retrofitted Arc flash in MV switchgear: why IAC containment cannot be...Read More
Megger Testing a Motor Before You Energise It: Insulation Resistance, PI Ratio and What the Numbers Actually Mean How to megger test a motor before energising: test voltage...Read More
Power Factor Correction: How APFC Panels Cut an Industrial Electricity Bill How APFC panels cut an industrial electricity bill: power factor...Read More
Sizing a Distribution Transformer: Load, Diversity and the Cost of Getting It Wrong Size on maximum demand, not connected load. How demand and...Read More
Gearbox Selection: Helical Versus Worm, and Where Each Belongs Helical or worm gearbox? Compare efficiency, thermal limits, ratio range...Read More
Hazardous Area Classification and Selecting a Flameproof Motor Zone, gas group and temperature class decide the motor, not...Read More
Cast Resin Dry Type Versus Oil Filled Transformers: How to Choose Cast resin dry type or oil filled? Fire load, tap...Read More
Balance of Plant Electricals: The Real Cost of Multi-Vendor Procurement Splitting motors, panels, transformers and pumps across suppliers wins the...Read More
NPSH and Cavitation: Diagnosing a Pump Before It Fails Cavitation warns you twice before it damages an impeller. Learn...Read More
Derating Electrical Equipment for African Installations: What Changes Versus an Indian Specification A nameplate is a test condition, not a promise about...Read More
VFD Panels: Where Drives Save Energy and What They Do to Your Supply Where a VFD panel actually saves energy, what its harmonics...Read More
Industrial Motor Efficiency: Why an Ageing Motor Costs More Than a New One Energy is over 97% of a motor's lifecycle cost. See...Read More
DOL, Star Delta, Soft Starter or VFD: Choosing How to Start a Motor DOL, star delta, soft starter or VFD? Compare starting current,...Read More
Fire Hydrant Systems and Fire Pumps: Specification, Standards and Statutory Approvals in India How to specify a fire hydrant system and fire pumps...Read More
Substations for Industrial Plants: AIS, GIS and Containerised Compared AIS, GIS or a containerised substation for your plant? Compare...Read More
Medium voltage panels: how to specify an 11kV, 22kV or 33kV MV switchgear panel How to specify an 11kV, 22kV or 33kV VCB panel:...Read More
