Tap changes are vital mechanism in transformers and the power grids. The indigenously manufactured MACPOWER OLTC (on load tap changer) offers zero-compromise quality and maximum reliability.
The on-load tap-changer has to provide uninterrupted current flow during the transition operation from one tap to the other. The current flow must be maintained uninterrupted without partial short-circuiting of the tapped winding.
The operation of an on-load tap-changer can be understood by two identifiable functions.
It implies a switching device that transfers the throughput power from one tap of the transformer to an adjacent one. During this operation the two taps will be connected through fitted transition impedance. In this phase the two taps will share the load current. There after the connection to the former tap will be interrupted and the load has been transferred to the new tap.
Prefer the service of your concern in the hands of skilled professionals of MACPOWER and enjoy the supremacy of our entire range of products
R11
• Rated Voltage -11KV
• Maximum Current – 200A
• Maximum Step Voltage -300V
• No.of Tap Positions – 9/12/17/21
• Tapping Arrangement – Linear
• Power flow – Unidirectional
• Arc quenching medium – Fluid
RI11
• With Integrated Control unit
• Rated Voltage -11KV
• Maximum Current – 200A
• Maximum Step Voltage -300V
• No.of Tap Positions – 9/12/17
• Tapping Arrangement – Linear
• Power flow – Unidirectional
• Arc quenching medium – Fluid
RD11
• Rated Voltage -11KV
• Maximum Current – 150A
• Maximum Step Voltage -300V
• No.Of Tap Positions – 9/12/17
• Tapping Arrangement – Coarse Fine
• Power flow – Bidirectional
• Arc quenching medium – Air
RDI11
• Rated Voltage -11KV
• With Integrated Control unit
• Maximum Current – 150A
• Maximum Step Voltage -300V
• No.Of Tap Positions – 9/12/17
• Tapping Arrangement – Coarse Fine
• Power flow – Bidirectional
• Arc quenching medium – Air
RC11
• Rated Voltage -11KV
• Maximum Current – 150A
• Maximum Step Voltage -300V
• No.of Tap Positions – 9
• Tapping Arrangement – Linear
• Power flow – Uni directional
• Arc quenching medium – Fluid
RCI11
•Rated Voltage -22KV
•Maximum Current – 200A
•Maximum Step Voltage -600V
•No.of Tap Positions – 9/12/17/21
•Tapping Arrangement – Linear
•Power flow – Unidirectional
•Arc quenching medium – Fluid
RI22
• Rated Voltage -22KV
• With Integrated Control unit
• Maximum Current – 200A
• Maximum Step Voltage -600V
• No.of Tap Positions – 9/12/17
• Tapping Arrangement – Linear
• Power flow – Unidirectional
• Arc quenching medium – Fluid
R33
• Rated Voltage -33KV
• Maximum Current – 200 / 300 A
• Maximum Step Voltage – 850V
• No.Of Tap Positions – 9/12/17/21
• Tapping Arrangement – Linear
• Power flow – Unidirectional
• Arc quenching medium – Fluid
RI33
• Rated Voltage -33KV
• With Integrated Control unit
• Maximum Current – 200 / 300 A
• Maximum Step Voltage -850V
• No.of Tap Positions – 9/12/17
• Tapping Arrangement – Linear
• Power flow – Unidirectional
• Arc quenching medium – Fluid
RB33
• Rated Voltage -33KV
• Maximum Current – 200 / 300A
•Maximum Step Voltage – 850V
•No.Of Tap Positions – 9/12/17
•Tapping Arrangement – Coarse Fine
•Power flow – Bidirectional
•Arc quenching medium – Fluid