JMD Electricals PVT LTD | CT PT Manufacturer India | 11kV 33kV Current & Potential Transformer
ISO 9001:2015 Certified Manufacturer

India's Trusted CT & PT Transformer Manufacturer

Precision-engineered Current Transformers (CT) and Potential Transformers (PT) for 11kV, 33kV and LT systems. Manufactured to IS 2705 & IS 3156 standards. Supplying to power utilities, industries & EPC contractors PAN India.

10+
Years of Manufacturing
500+
Projects Delivered
PAN
India Delivery
IS
2705 & 3156 Certified
ISO 9001:2015 Certified
IS 2705 Current Transformer
IS 3156 Potential Transformer
Made in India β€” PAN India Supply
BIS Approved Manufacturing
10+
Years of
Expertise
ISO 9001:2015
IS 2705 Compliant
IS 3156 Compliant
BIS Approved
About JMD Electricals

Precision Manufacturing.
Trusted by India's Power Sector.

JMD Electricals PVT LTD is a dedicated manufacturer of Current Transformers (CT) and Potential Transformers (PT) serving power utilities, industrial plants, and EPC contractors across India. Our state-of-the-art manufacturing facility produces instrument transformers that conform strictly to BIS standards IS 2705 and IS 3156.

BIS & ISO Certified Quality
Every transformer undergoes rigorous testing as per IS 2705 (CT) and IS 3156 (PT) before dispatch. ISO 9001:2015 certified quality management system.
Full Product Range β€” 11kV to 33kV
From LT CT to 33kV Oil Cooled outdoor transformers, we manufacture the complete range of instrument transformers for all voltage classes.
On-Time Delivery. PAN India.
Strong logistics network enabling timely supply to power projects, discoms, and industrial clients across every state in India.
Our Products

CT & PT Transformers
We Manufacture

Precision instrument transformers for 11kV, 33kV and LT voltage classes β€” resin cast and oil cooled β€” manufactured to IS 2705 and IS 3156 standards.

11kV R/C CT
11kV Resin Cast

11kV R/C Current Transformer (CT)

Indoor resin cast current transformers for 11kV metering and protection. High accuracy class, suitable for panel mounting in switchgear cubicles. Available in various CT ratios and burden ratings.

IS 2705 Indoor Type Class 0.5 / 1 Single Phase
11kV R/C PT
11kV Resin Cast

11kV R/C Potential Transformer (PT)

High precision resin cast potential transformers for 11kV indoor applications. Designed for accurate voltage measurement and protection relay operation in substation panels.

IS 3156 Indoor Type 11kV/110V Draw-out Type
LT CT
LT Low Tension

LT CT (Low Tension Current Transformer)

Low tension current transformers for 0.433kV LV metering, energy metering panels and protection applications. Compact design, high accuracy, suitable for MCC and LT panels.

IS 2705 0.433kV Class 0.5 / 1 Tape Wound
33kV R/C CT & PT
33kV Single Phase

33kV R/C Single Phase CT & PT

Single phase resin cast current and potential transformers designed for 33kV class indoor substations. High insulation level, excellent accuracy for metering and differential protection.

IS 2705 / 3156 33kV Class Single Phase Indoor
Oil Cooled CT & PT
11/33kV Oil Cooled

Oil Cooled CT & PT (Outdoor)

Outdoor oil immersed current and potential transformers for 11kV and 33kV class installations. Designed for harsh outdoor environments, substations, and pole-mounted applications. Superior thermal stability and longevity.

IS 2705 / 3156 Outdoor Type 11kV / 33kV Oil Immersed
Custom Requirements?

Need a Specific CT/PT Specification?

We manufacture custom CT & PT transformers as per your technical specifications, ratio, burden, and accuracy class requirements.

Request Custom Spec
Why Choose JMD

The Preferred CT PT
Manufacturer in India

Thousands of instrument transformers delivered. Power utilities, industries, and EPC contractors rely on JMD Electricals for precision, reliability, and compliance.

500+
Projects Executed
10+
Years Manufacturing
100%
Quality Tested
IS 2705 & IS 3156 Compliant
All products manufactured and tested strictly as per Bureau of Indian Standards β€” IS 2705 for CT and IS 3156 for PT.
High Accuracy Ratings
Class 0.2, 0.5, 1 and 3 accuracy available. Suitable for revenue metering, protection, and differential relay applications.
Custom Designs Available
We manufacture to your exact specifications β€” CT ratio, PT ratio, burden, accuracy class, and application-specific requirements.
Pan India Delivery
Reliable supply chain for timely delivery to project sites, warehouses, and EPC contractors across every state in India.
Dedicated Technical Support
Expert team available to assist with product selection, technical specifications, and post-installation support.
Modern Manufacturing Facility
State-of-the-art plant with precision winding machines, vacuum impregnation, and full testing infrastructure.
Manufacturing Process

How We Build
Every CT & PT Transformer

A disciplined, multi-stage manufacturing process ensures every transformer that leaves our facility meets the highest quality standards.

01
Core Selection
Premium CRGO / CRNO silicon steel cores selected for lowest iron losses and highest accuracy.
02
Precision Winding
CNC precision winding of primary and secondary coils with high-grade enamelled copper wire.
03
Insulation & Resin Cast / Oil Fill
Vacuum resin casting for indoor types or transformer-grade mineral oil filling for outdoor oil cooled units.
04
Curing & Assembly
Temperature-controlled curing of resin cast units ensures structural strength and dielectric integrity.
05
Type & Routine Testing
All units tested as per IS 2705 / IS 3156 β€” ratio error, phase displacement, insulation, power frequency withstand.
06
Dispatch & Delivery
Packed in weather-proof export-grade packaging with test certificates and dispatch to site PAN India.
Quality & Standards

Built to Indian &
International Standards

Our CT and PT transformers are designed, manufactured, and tested in strict compliance with applicable BIS standards, ensuring reliability and safety in every power system application.

IS 2705 β€” Current Transformers
Bureau of Indian Standards specification for current transformers β€” all ratios, accuracy class, burden and insulation requirements.
IS 3156 β€” Voltage Transformers (PT)
BIS specification for potential/voltage transformers β€” accuracy class, ratio, insulation level and thermal rating compliance.
ISO 9001:2015 β€” Quality Management
Certified quality management system ensuring consistent product quality, process control and customer satisfaction at every stage.
IEC 61869 β€” Instrument Transformers
Products designed in alignment with international IEC standards, making them suitable for export and international projects.
100%
Units Routine Tested Before Dispatch
0.2
Accuracy Class Available (Metering Grade)
33kV
Highest Voltage Class Manufactured
IS+
BIS Certified Manufacturing Process
Full Test Certificates Provided
Ratio error, phase displacement, insulation resistance, power frequency withstand test reports with every supply
Client Testimonials

Trusted by India's
Power Industry

β˜…β˜…β˜…β˜…β˜…

"We have been procuring 11kV and 33kV CT PT units from JMD Electricals for our substation projects for over three years. Their products consistently meet IS standards, and test certificates are provided with every supply. Delivery is always on time."

TG
Procurement Head, Hyundai E&C
β˜…β˜…β˜…β˜…β˜…

"JMD Electricals supplied oil cooled CTs and PTs for our 33kV outdoor substation. The units passed all type tests and have been performing flawlessly for two years in harsh outdoor conditions. Highly reliable manufacturer."

PB
Project Manager, M3M Group
β˜…β˜…β˜…β˜…β˜…

"For our LT CT requirements across multiple industrial plant projects, JMD Electricals has been our go-to supplier. Competitive pricing, correct accuracy class, and proper documentation every time. Excellent technical support team."

RK
Electrical Engineer, Elan Group
Get In Touch

Request a Quote or
Technical Inquiry

Contact our team for product specifications, pricing, or custom CT PT requirements. We respond within 24 hours.

Phone / WhatsApp
+91 95402 49966
Available Mon–Sat, 9am–6pm IST
Email Us
jmdelectricalsctpt@gmail.com
Send technical specs or RFQ
Head Office
JMD Megapolis, Sector-48
Unit No. EF-846, 8th Floor, Gurugram, Haryana – India
Request a Quote
Fill in your requirements and our team will get back to you within 24 hours.
πŸ”’ Your information is secure and will not be shared with third parties.