86
W. Li et al.
Table 3. Parameters of motors in Dali Station
Designations of motors P0401 P0402 P0403 P0404
Voltage (V)
380
380
380
380
Frequency (Hz)
50
50
50
50
Power (kw)
75
132
132
132
Revolving speed (r/min) 2975 2980 2980 2980
Rated current (A)
135
237
237
237
Efficiency (%)
0.89
0.89
0.89
0.89
Duty
S1
S1
S1
S1
Fig. 2. Performance curve of pump P0401
3 Analysis of the Demand to Increase the Transmission and Related
Content
Mains power supply of Dali Delivery Station with pump adopts single-bus connection
with voltage of 10 kV, rated current of 630 A, transformer rated capacity of 630 kVA
and voltage of 400 V after transformation. Power supply of main pump motor in Dali
Delivery Station with pump is 380 V, and rated current of motor P0401 is 135 A, rated
current of P0402, P0403 and P0404 motor are 237 A.
W. Li et al.
Table 3. Parameters of motors in Dali Station
Designations of motors P0401 P0402 P0403 P0404
Voltage (V)
380
380
380
380
Frequency (Hz)
50
50
50
50
Power (kw)
75
132
132
132
Revolving speed (r/min) 2975 2980 2980 2980
Rated current (A)
135
237
237
237
Efficiency (%)
0.89
0.89
0.89
0.89
Duty
S1
S1
S1
S1
Fig. 2. Performance curve of pump P0401
3 Analysis of the Demand to Increase the Transmission and Related
Content
Mains power supply of Dali Delivery Station with pump adopts single-bus connection
with voltage of 10 kV, rated current of 630 A, transformer rated capacity of 630 kVA
and voltage of 400 V after transformation. Power supply of main pump motor in Dali
Delivery Station with pump is 380 V, and rated current of motor P0401 is 135 A, rated
current of P0402, P0403 and P0404 motor are 237 A.