Healthcare infrastructure.
Start with the critical-load brief.

A useful starting point

Hospitals and healthcare campuses can have essential and non-essential loads, backup sources and constrained plant rooms. The electrical designer must define how these systems interact. Transformer supply alone is not a guarantee of power continuity, clinical performance or a healthcare approval.

Typical needs to define

• Separate essential and non-essential load information and explain any standby or changeover arrangements.
• Share relevant load characteristics, equipment-starting duties and protection/selectivity requirements from the project engineer.
• Describe plant-room access, ventilation, maintenance clearances and any specified acoustic or environmental constraints.

Which transformer type fits?

An oil-filled distribution transformer may be discussed where the approved site arrangement permits it. Dry-type up to 3 MVA may be considered for an indoor installation with the required ventilation and enclosure design. It should not be labelled inherently risk-free, maintenance-free or automatically healthcare-compliant. Power-transformer requirements depend on the campus network and confirmed company range.

What to send for a quote

• Electrical single-line diagram and the critical-load/backup philosophy.
• Indoor/outdoor location, fire-strategy requirements and consultant specification.
• Access, planned installation windows, required documentation and responsibilities.

Also include the required rating, HV/LV voltage, phase, frequency, winding preference, quantity and delivery state/country. Mark unknown values for confirmation rather than copying assumed defaults.

Documents and project-specific confirmation

OSTL acquired BIS licences in all five major transformer categories in 2020. Request the current licence documents and the applicable product/rating scope; this is not evidence of registration or approval by a utility or procurement platform. Routine tests per IS 1180 / IS 2026 are confirmed; the applicable standard and agreed test/document schedule must be checked for the offered design.

OSTL has manufactured transformers since 2007. The corporate office is in Kolkata and the transformer manufacturing unit is in Howrah, West Bengal. Discuss your brief with the Kolkata office on +91 93310 15264 or ostltd@hotmail.com.

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