CT & PT

LV Tape WPL CT

LV Tape WPL CT

Ratio: 50/ 1A, VA/CLS: 4/1.0 | Frq: 50Hz, ILV: 0.72/3/-KV

Voltech's LV Tape Wound Primary Line (WPL) Current Transformer, from 100/5-1A upto 15VA, Class 1 rating at 50Hz, accurately measures low-voltage current for metering and protection. Built to withstand 3kV insulation levels, it suits panel builders and utilities needing compact, accurate current transformers.

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LV Resin Cast WPL CT

LV Resin Cast WPL CT

Ratio: 30/ 1A, VA/CLS: 15/1.0 | Frq: 50Hz, ILV: 0.72/3/-KV

The Voltech LV Resin Cast WPL Current Transformer, from 120/5-1A upto 15VA, Class 1 rating at 50Hz, offers superior insulation and mechanical strength through resin-cast construction. This resin cast CT resists moisture and contamination, ideal for harsh industrial environments needing reliable, long-life current measurement.

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Resin Cast LV Ring Rectangular CT

LV Resin Cast Ring & Rectangular CT

Ratio: 30/ 1A, VA: 30/1.0 | Frq: 50Hz, ILV: 1.1/4/-KV

Voltech's LV Resin Cast Ring & Rectangular Current Transformer, from 5000/5-1A upto 20VA, Class 0.2 rating at 50Hz and 1.1/4kV insulation, provides flexible mounting for varied panel designs. This ring and rectangular CT delivers accurate metering and protection current sensing for switchgear and control panel manufacturers.

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Summation CT

Summation CT

Ratio: 5+5+5/ 5A, VA: 15/1.0 | Frq: 50Hz, ILV: 0.72/3/-KV

The Voltech Summation Current Transformer, rated 5+5+5/5A with 15VA, Class 1 rating at 50Hz, combines multiple current inputs into a single summed output for accurate aggregate load metering. This summation CT is essential for multi-feeder metering panels and energy audit applications in industrial and utility installations.

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Potential Transformer

Potential Transformer

Up to 25 KVA

Voltech's Potential Transformer (PT), rated up to from 800/415/110V, 15VA, Class 0.5 rating at 50Hz steps down high voltage to safe, measurable levels for metering, protection relays, and synchronizing equipment. This potential transformer ensures accurate voltage sensing in substations and switchgear panels, supporting reliable protection and revenue metering.

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Frequently Asked Questions

A current transformer (CT) steps down high current for safe metering and protection, while a potential transformer (PT) steps down high voltage for the same purpose. Voltech manufactures both — CTs in tape and resin-cast designs, and PTs rated up to 800V/110V.
A resin cast CT is encapsulated in epoxy resin for superior mechanical strength, moisture resistance, and longer service life compared to oil or air-insulated designs. Voltech's LV Resin Cast WPL CT is rated 30/1A with 15/1.0 VA/CLS.
A summation current transformer combines multiple current inputs (such as from parallel feeders) into a single summed output, simplifying metering for aggregate load measurement. Voltech's summation CT is rated 5+5+5/5A with 15/1.0 VA.
CT accuracy directly affects billing accuracy in revenue metering — an inaccurate CT can cause significant under- or over-billing. Voltech's CTs are manufactured to defined VA/CLS accuracy classes (e.g., 4/1.0, 15/1.0, 30/1.0) for reliable metering and protection.
Voltech Manufacturing Company Pvt Ltd manufactures LV Tape and Resin Cast Current Transformers, Ring & Rectangular CTs, Summation CTs, and Potential Transformers, supplying panel builders, utilities, and industrial customers across India.
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