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Segregated Phase Busduct (SPB) ** - MV

Product Specification
Compliance with the standard IS 8084, ANSI/IEEE C37.23, IEC62271
Rated Continuous Current 630A-5000A
Conductors Aluminium / Copper
Rated Operational Voltage (Ue) 3.3kV – 33kV (AC)
Rated Short Time Withstand Current (Icw) up to 50kA (for 3 Sec.)
Enclosure Material Aluminium Alloy
Rated Impulse Withstand Voltage (Uimp) 40kV – 170kV (1.2/50 µSec)
Degree of Protection IP 55 / IP 65

** Non Segregated Phase Busduct (NSPB)-MV design is available on request.

Segregated Phase Busduct (SPB) Solutions by MYEPC Pvt. Ltd.

MYEPC Pvt. Ltd. offers Segregated Phase Busducts (SPB) under the premium “Isobar Range,” delivering medium voltage power busbar solutions from 3.3kV to 33kV with current ratings of 630A to 5000A. Our SPB systems are designed for reliable, efficient power distribution in small power generation units, industrial setups, and infrastructure projects.

Applications of SPB

The SPB systems are suitable for a wide range of power transmission applications:

  • Transformer to switchgear panel connections

  • Interconnection between multiple switchgear panels

  • Generator phase terminals to generator transformers with tap-off connections

  • Generator transformers to unit auxiliary transformers (UAT), Neutral Grounding Cubicles (NGC), Excitation Transformers, and Lightning Arrester Voltage Transformer (LAVT) cubicles

  • Generator phase terminals to generator circuit breakers (GCB) and onward connections to transformers and auxiliary equipment

Industries & Segments Served

Our SPB systems provide reliable power transmission in:

  • Power generating stations – Captive Power Plants, Hydro, and Solar

  • Process plants and manufacturing industries

  • Industrial buildings and infrastructure projects – Airports, Metros, Railways, Tunnels, and Ports

Why MYEPC Pvt. Ltd.

With over four decades of experience, our Power Busbar Division delivers world-class solutions backed by:

  • Expertise in Cast Resin Insulated Busways

  • Advanced R&D and engineering capabilities

  • State-of-the-art manufacturing plants and in-house testing facilities

  • Comprehensive project management for turnkey solutions

Our SPB systems combine reliability, safety, and efficiency, making MYEPC Pvt. Ltd. a one-stop solution provider for all medium voltage power busbar requirements.

Benefits of Segregated Phase Busducts (SPB) by MYEPC Pvt. Ltd.

  • Superior Short-Circuit Protection – Non-magnetic metal barriers between phases provide excellent shielding under short-circuit conditions.

  • Reduced Phase-to-Phase Faults – Design minimises the risk of electrical faults between phases, enhancing operational safety.

  • International Standards Compliance – Fully conforms to global IEC and other relevant standards, ensuring reliability and safety.


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