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11KV Substation
Model
Y---------------------------------------prefabricated type
B---------------------------------------substation      
□--------------------------------------structure characteristics
P M
□--------------------------------------design No.
□--------------------------------------HV Switchgear with main switch
□--------------------------------------HV Switchgear with operating mechanism
□--------------------------------------transformer rated capacity KVA
 
 
General

      YBM, YBP series of prefabricated substation is the combination of the HV electrical apparatus, transformer, and low voltage transformer equipments and therefore is used in the high-rise buildings, residential districts, urban and rural construction, hi-tech development zone, small and medium size enterprise, mine and oil fields and the temporary construction sites to receive and distribute the power.
YBM, YBP series of prefabricated substation is complete set, small sized, compacted structure, running safely, easy maintenance, and mobile. And it only takes the 1/10-1/5 of the space of the same capacity of civil construction distribution, and therefore greatly reduces the construction cost. It can be used in the ring net distribution system, double power distribution system or radiator terminal distribution system. It is the new complete set equipment used for rural and urban substation construction and reformation.
      YBM, YBP series of prefabricated substation is fully in accordance with the standard of SD320-1992 (the technology of Boxes substation) and the standard of GB/T 17467-1998 (HV/LV prefabricated substation). The shell is made of non-metal, composite board or the steel sheet as per the users.
 
 
Technical parameter

Serial No.
Unit
Item
HV electrical apparatus
transformer
LV electrical apparatus
1
Rated voltage Ue
KV
11
11/0.4
0.4
2
Rated capacity Se
KVA
 
P: 200~1250
 
M: 50~400
3
Rated current le
A
200~630
 
100~3000
4
Rated drop-out current
A
Load switch400~630A
 
15~63
KA
Composite apparatus
5
Rated short time withstand current (S)
KA(xs)
20*(2)
200~400KVA
15*1
12.5*(4)
400KVA
30*1
6
Rated withstand current (peak)
KA
31.5、50
200~400KVA
30
400KVA
63
7
Rated making current
KA
31.5、50
 
 
8
Power frequency withstand voltage 1min
KA
Phase-earth and phase-phase 32、40
Oil-immersed:35/5min
≤300V:2KV
34、48
Dry-type:28/5min
300、600V:2.5KV
9
Lightning impulse
KV
Phase-earth and phase-phase 60、75
75
 
Isolation fracture:75、85
75
10
Noise level
dB
 
Oil-immersed:55
 
Dry-type:65
11
Protection degree
 
 
IP23D
 
12
External dimension
as per the capacity of the transformer
 

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