Synchronous Machines
Synchronous Machines: Harnessing the Symphony of Efficiency and Precision
Ramakrishna Electrical Winding Works
AC Synchronous Motor
Synchronous motors are widely used in various applications due to its special operating characteristics.
Advantages:
High efficiency, high power-factors, and constant speed operation.
RKEWW has rich experience in providing unique solutions in repair, rewinding & overhauling (cryogenic cleaning) for large size synchronous motors.
Such tailored remediation services in taking up design challenges made
RKEWW, the preferred ‘solution provider’ for ‘large specialized synchronous motors.
.
Among many synchronous machines handled so far, one large synchronous motor, redesigned, repaired by RKEWW, act as a testimony of skills. It is 11.5 MW 10KV 1500 RPM Synchronous motor manufactured in Italy and belongs to our esteemed customer M/s Neelachal Ispat Nigam Limited, Orissa.
During the start of a synchronous machine, high current flows in damper windings resulting in high temperature rise. In course of time, the damper windings in this machine were experiencing both thermal & mechanical stress. This led to the development cracks in damper rings. RKEWW, after an in-depth analysis, traced the root cause of ‘damper ring failure’ and identified a design flaw in the damper ring system. RKEWW came up with a reliable solution that involved complete redesigning and forging of damper rings with modified metallurgy composition. This new design improved both mechanical and thermal properties.
RKEWW carried out complete stator rewinding with newly manufactured transposition coils, and class H & F Insulating system. NDT test was conducted to ensure successful operation of the machine.
RKEWW -AC mOTERS
AC MOTERS
Constant Synchronous motors are widely used in various applications due to special operating characteristics.
Advantages over other types of Synchronous Motors:
High efficiency, high power factors, and constant speed operation.
.
The advantages over other types of motors are high efficiency, high power factors, and constant Synchronous Motor ™”s &e oh efficiency high power factors, and constant speed operation.
RKEWW has rich experience in providing unique solutions in repair rewinding & overhauling (cryogenic leaning), such as remediation services in taking up design challenges made RKEW, the preferred ‘solution provider’ or large specialized synchronous motors.
This photo shows
a 11.6 MW, 1496 RPM, 11 KV,Chinese
make motor came for complete rewinding with class F insulation for MDBFP motor application,
belongs to M/s. Vedanta Limited – Aluminium & Power CPP motor Jharsuguda, Odisha
Basic Information
Among many synchronous machines handled so far,
one large synchronous motor, redesigned, repaired by RKEWW,
act as a testimony of skills.
It is 11.5 MW 10 KV 1500 RPM synchronous motor
– manufactured in Italy
– belongs to our esteemed customer M/s Neelachal Ispat Nigam Limited, Orissa.
.
During the start of a synchronous machine, high current flows in damper windings resulting in high temperature rise. In course of time, the damper windings in this machine were experiencing both thermal & mechanical stress.
This led to the development cracks in the damper rings. RKEWW, after an in-depth analysis, traced the root cause of ‘damper ring failure’ and identified a design flaw in the damper ring system. RKEWW came up with a reliable solution that involved complete redesigning and forging of damper rings with modified metallurgy composition. This new design improved both mechanical and thermal properties.
RKEWW carried out complete stator rewinding with newly manufactured transposition coils, and class H&F Insulating system. NDT test was conducted to ensure successful operation of the machine.
This photo shows a 11.6 MW, 1496 RPM, 11 KV, Chinese
make motor came for complete rewinding with class F insulation for MDBFP motor application,
belongs to M/s. Vedanta Limited – Aluminium & Power CPP motor Jharsuguda, Odisha
