Combination transformer Substation
Combination transformer Substation
Model: ZBW1
Details

 Combined transformer substation General :

  Combined Substation is a kind of integrated complete power transmission and distribution equipment, used in 6~104kV,AC 50Hz power transmission and distribution system with a transformer rated capacity of 30~2000kVA. It is widely used in out-door power supply fields such as high buildings, residential zone, factory and mining, hotel, park, oil field, airport, wharf, railway, shopping store, and other temporary facilities, etc. This product can be used not only in a close ring –net for power distribution, but also in transformation power net for terminal power supply.

     ZBW1-12 Series Combined Substation is a kind of three parts: transformer room, high voltage room and low voltage room.
 
  High voltage side is equipped with HXGN series RMU switchgear (aero genesis type, compressed air type, vacuum type or SF6 type) and equipped with load switch and fuse internal (circuit breaker could be equipped, if required).
     A kind of molded case auto-air switch should be adopted in LV voltage side with high breaking capacity and good protection capacity 
     Oil-immerged type transformer or dry type transformer could be adopted as transformer.
     Varied materials could be chose as enclosure materials, such as aluminum alloy plate, compound plate, etc. And a kind of heat-resistance material should be chose as internal lining and tow-layer structure should be used in the top roof, so it could efficiently protect against heat radiation.
     Temperature dropping facility and condensation proof measure will be equipped in the substation.
 

Feature :
 
      1. The frame of substation is made of steel and angle iron galvanized to have the enough mechanical strength.
      2. Cold-rolled steel sheet, stainless steel, aluminum alloy sheet or compound colorful sheet is used for the enclosure.
      3. Each cubicle is separated by steel sheet to be different shape inside.
      4. The illuminating devices are installed inside L.V.&H.V. cubicles and transformer cubicle for supervision and maintenance.
      5. The cover is double-layer to prevent the heat from increasing temperature.
      6. Natural ventilation is taken for transformer. When the temperature inside the transformer cubicle is higher than the set temperature, the fan installed on the top will start to work and control the temperature.
      7. Sealing devices are put on the turning parts to be moisture-proof.
      8. Perfect protection and convenient operation, particularly "five-proof"functions on H.V. side ensures the security of maintenance.
      9. The product is good-looking and natural in certain environment

 

Technical parameter :

 

Description

 
Items
Unit
Data
H.V. unit
Rated voltage
kV
12
Rated current of main bus-bar
A
630
Rated short-time withstand current
kA/s
25/2
Rated crest withstand current
kA
63
Rated short-time making current
kA
63
Breaking current of fuser
kA
31.5 40
L.V. unit
Rated voltage
V
400
Rated current of main circuit
A
100-4000
Rated max. short-circuit breaking capability
kA
80
Rated operation short-circuit breaking capability
kA
50(65)
Rated short-time withstand current
KA/1s
50(65)
Branch current and compensation capacity
 
According to the requirement of customer
Transformer unit
Rated capacity
kVA
30-2000
Impedance voltage
%
4 4.5
Tapping range
%
+/- 2x2.5
+/- 5
Vector group
 
Y,yn0 D,yn11
Enclosure
Enclosure protection grade
 
IP23
Sound level
dB
<=55

 

Remark : The parameters are taken example for the equipments such as HXGN26-12 H.V. switchgear, TANW1 series intelligent circuit breaker, and S9-M oil immersed transformer.

Ordering Notes :

      1. Type of substation
      2. Type of transformer
      3. H.V/ L.V. wiring mode, type and parameters of chosen elements
      4. Regarding to enclosure color, if there is no special requirement by customer, it would be dark green.
      5.If any requirement is put forwarded by customer, it can be discussed while ordering.
 
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