Meghna Power
MEGHNA POWER
Substation Specialists
HomeProductsCT-PT Unit
CT-PT Unit
Metering

CT-PT Unit Manufacturer in Bangladesh

A correctly specified and accurately wound Current Transformer or Potential Transformer is the foundation of any reliable metering or protection system. Meghna Power manufactures CT-PT units at our Chowala, Narsingdi workshop, winding each unit in-house to achieve tight ratio accuracy and low burden. Our units are widely used in Low-Tension and High-Tension metering panels across industrial facilities, utility connections, and BPDB/DESCO substation installations throughout Bangladesh.

Our Current Transformers are manufactured in accuracy classes 0.5, 1.0, and 3.0 for metering, and 5P10, 5P20 for protection. Potential Transformers are available for primary voltages from 415V to 33kV, with standard accuracy classes 0.5 and 1.0. Every unit undergoes ratio error, phase displacement, and burden testing before dispatch — we do not ship units that fail to meet their declared class.

We supply CT-PT units individually or as assembled metering cubicle sets, ready for direct installation into your LT or HT panel. When the metering panel is also being fabricated by Meghna Power, CT-PT units are matched and installed as part of the complete panel build — reducing co-ordination effort and ensuring the metering circuit is tested as a system before delivery.

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SPECIFICATIONS

CT accuracy class0.5, 1.0, 3.0 (metering); 5P10, 5P20 (protection)
PT accuracy class0.5, 1.0
Primary voltage (PT)415V to 33kV
CT primary current5A to 3000A (standard)
CT secondary current1A or 5A
Burden5 VA to 30 VA
Insulation level0.66kV to 33kV class
Frequency50 Hz
StandardsIEC 61869-2 (CT), IEC 61869-3 (PT)
TestingRatio error, phase displacement, burden test on every unit

APPLICATIONS

Industrial HT Metering Panels

CT-PT sets integrated into 11kV metering cubicles for BPDB commercial demand metering at factory connection points.

LT Distribution Boards

Revenue metering CTs for LT panels where sub-metering or utility billing accuracy is required.

Substation Protection

High-accuracy protection class CTs for differential, over-current, and earth fault relay schemes in primary substations.

Power Quality Monitoring

Metering-class CTs feeding power quality analysers and energy management systems in smart factory applications.

Capacitor Bank Control

CTs providing load current signal to automatic PFI panel controllers for reactive power compensation.

Generator Synchronisation Panels

Precision PTs for bus voltage sensing in generator synchronisation and paralleling control panels.

FREQUENTLY ASKED QUESTIONS

Q

What accuracy classes are available?

For current transformers we supply metering class 0.5, 1.0, and 3.0, and protection class 5P10 and 5P20. Potential transformers are available in accuracy class 0.5 and 1.0. Higher accuracy (class 0.2S) is available on request for revenue-grade applications.

Q

Can you supply CT-PT units as part of a complete panel?

Yes. When Meghna Power is fabricating the metering panel, CT-PT units are selected, wired, and tested as part of the complete assembly. The finished panel is dispatched with test certificates covering the full metering circuit.

Q

How do you verify ratio accuracy before dispatch?

Every CT and PT is tested on our in-house ratio bridge for ratio error and phase displacement at 25%, 100%, and 120% of rated current or voltage. Units that do not meet their declared accuracy class are rewound — we do not ship non-compliant units.

Q

Do you supply replacement CTs for existing panels?

Yes. Provide us the existing CT nameplate data (ratio, class, burden, terminal markings) and we will supply a drop-in replacement. We can match most standard and non-standard ratios within 2–3 working days for commonly wound sizes.

GET A FREE QUOTE
WITHIN 24 HOURS

Tell us your requirement — kVA rating, voltage, quantity, site location — and our engineers will respond with a detailed technical and commercial proposal.

Send Enquiry →📞 +880 1741 774141

Meghna Power · Chowala, Narsingdi, Bangladesh · Sat–Thu 9 AM – 6 PM