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Blog Entry# 1729028
Posted: Feb 04 2016 (01:15)
6 Responses
Last Response: Feb 04 2016 (17:36)
6 Responses
Last Response: Feb 04 2016 (17:36)
------- Opinion Sought for Display of HOG Loco List in CLW's Official Website -----------
Do you really think that there should be a link in the Official Website of CLW displaying "HOG Locos Turn Out From CLW" like "IGBT Loco Position/IGBT Loco Turned out From CLW" in this existing Link of CLW's Official Website.
click here
So far we have 360 IGBT Locos turn...
more...
Do you really think that there should be a link in the Official Website of CLW displaying "HOG Locos Turn Out From CLW" like "IGBT Loco Position/IGBT Loco Turned out From CLW" in this existing Link of CLW's Official Website.
click here
So far we have 360 IGBT Locos turn...
more...
3 Posts
Sir,
In very simple words IGBT has the advantages of both high current handling capability and ease of control which GTO don't have. In 3-Phase Locomotive both the Cabin of the Loco is considered as Bogie 1 & Bogie 2. In case of GTO based Loco if any Traction Motor is malfunctioning then you have to isolate the Bogie whose TM is damaged(TM is fixed with wheels of the Loco) and without repairing the same you can't proceed with the Loco. But in case of IGBT you need not wait for repairing you can proceed with the Loco with other Functional TMs and operating rules in IGBT is much more easier than GTO for the LPs of 3-Phase Loco.
More...
more...
In very simple words IGBT has the advantages of both high current handling capability and ease of control which GTO don't have. In 3-Phase Locomotive both the Cabin of the Loco is considered as Bogie 1 & Bogie 2. In case of GTO based Loco if any Traction Motor is malfunctioning then you have to isolate the Bogie whose TM is damaged(TM is fixed with wheels of the Loco) and without repairing the same you can't proceed with the Loco. But in case of IGBT you need not wait for repairing you can proceed with the Loco with other Functional TMs and operating rules in IGBT is much more easier than GTO for the LPs of 3-Phase Loco.
More...
more...
Thanks a lot Nilanjan, for taking your time for updating my knowledge about IGBT Loco etc.
A few points to note :-
1. Main advantage of IGBT over GTO is the switching frequency. The switching frequency of IGBT is about 3-4 times higher than that of GTO. Through higher switching frequencies, we can put tighter bounds on the stator flux. As a result, torque pulsations can be minimized.
2. GTO, being a thyristor, requires external snubber circuits as a result of which the switching losses are higher. IGBT does not require such snubber circuits because of di/dt and dv/dt control. Hence, the switching losses are considerably lower.
3....
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1. Main advantage of IGBT over GTO is the switching frequency. The switching frequency of IGBT is about 3-4 times higher than that of GTO. Through higher switching frequencies, we can put tighter bounds on the stator flux. As a result, torque pulsations can be minimized.
2. GTO, being a thyristor, requires external snubber circuits as a result of which the switching losses are higher. IGBT does not require such snubber circuits because of di/dt and dv/dt control. Hence, the switching losses are considerably lower.
3....
more...