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VACUUM BALANCING FACILITY |
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This
Balancing tunnel is used for balancing of Generator
Rotor, Steam turbine rotors of the order of Max. Weight
50 tonnes. The dimensional and Physical details of
the Jobs Vs capability of the Balancing pedestals,
and achievable tolerances are as following.
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| S.No |
Parameter |
DH
9 Pedestals of Schenck/Germany |
DH
70 Pedestals of Schenck/Germany (Ready by May 2002) |
| 1 |
Job
Weight |
2500-50,000
Kgs. |
1000-20,000
Kgs. |
| 2 |
Job
Length |
10.5
mtrs |
10.5
mtrs |
| 3 |
Job
Diameter |
3300
mm |
2250
mm |
| 4 |
Dia.
of Plain bearing shell which can be used on Pedestals |
650
mm |
500
mm |
| 5 |
Min.
Distance between bearings |
1800
mm |
600
mm |
| 6 |
Max.
Rotational Speed |
6,000
rpm |
10,000
rpm |
| 7 |
Max.
Centrifugal force |
800,000
Nw |
400,000
Nw |
| 8 |
Balancing
standards |
ISO
1134
Plant standards TG 45228 & TC 51357
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| 9 |
Measurement
and supporting systems for balancing. |
CAB
690H Measuring Head with software CABLINK for continuous
data Acquisition, Display and Storage, indicating speed,
unbalance and vibration in velocity & displacement.
M482 / M363 F measuring units for additionally indicating
unbalance force in Newtons. All Sourced through Schenck/Germany. |
| 10 |
Supporting
Auxillary system |
Drive
motor (D.C)-------1800Kw (2 nos of 900 Kw in Tandem
operation)
Thyristor Drive -----------800v, 1260 amps
Atomospheric oil Station. ----300 lpm
Vacuum Oil Station. ---------300 lpm
Vacuum pumping Station ----2 mbar.
(Pfeiffer/Germany) |
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Salient
features of Balancing Tunnels at BHEL / Ramachandrapuram
/ Hyderabad / INDIA
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HIGH SPEED BALANCING FACILITY |
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This
balancing tunnel is used for balancing of steam turbine
rotors, Compressor drive turbine rotors and Brushless
exciter armatures and Impeller. The dimensional and
Physical details of the jobs Vs capability of the
Balancing Pedestals, and achievable tolerances are
as following.
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| S.No |
Parameter |
DH
4 Pedestals of Schenck/Germany |
DH
6 Pedestals of Schenck/Germany |
| 1 |
Job
Weight |
60-1250
Kgs. |
400-8,000
Kgs. |
| 2 |
Job
Length |
4
mtrs |
10.5
mtrs |
| 3 |
Job
Diameter |
3300
mm |
2250
mm |
| 4 |
Dia.
of Plain bearing shell which can be used on Pedestals |
650
mm |
500
mm |
| 5 |
Min.
Distance between bearings |
1800
mm |
600
mm |
| 6 |
Max.
Rotational Speed |
6,000
rpm |
10,000
rpm |
| 7 |
Max.
Centrifugal force |
800,000
Nw |
400,000
Nw |
| 8 |
Balancing
standards |
ISO
1134
Plant standards TG 45228 & TC 51357
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| 9 |
Measurement
and supporting systems for balancing. |
CAB
690H Measuring Head with software CABLINK for continuous
data Acquisition, Display and Storage, indicating speed,
unbalance and vibration in velocity & displacement.
M482 / M363 F measuring units for additionally indicating
unbalance force in Newtons. A,l Sourced through Schenck/Germany. |
| 10 |
Supporting
Auxillary system |
Drive
motor (D.C)-------1800Kw (2 nos of 900 Kw in Tandem
operation)
Thyristor Drive -----------800v, 1260 amps
Atmospheric oil Station. ----300 lpm
Vacuum Oil Station. ---------300 lpm
Vacuum pumping Station ----2 mbar.
(Pfeiffer/Germany) |
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