12kv Outdoor Prefabricated Compact Transformer Power Electrical Substation Equipment Box Type Substations

Prefabricated Transformer Substation

Service condition
1. Altitude: ≤ 1000m (above sea level)
2. Ambient temperature: Max. 40C Min. -25C
Max. Monthly average temperature: ≤ 35C
Max. Yearly average temperature: ≤ 25C
3. Relative humidity: Daily average value≤ 95%, monthly average value≤ 90%
4. Max. Daily difference in temperature: 25C
5. Sunlight intensity: 0.1W/CM2 (wind speed 0.5M/S);
6. Outdoor wind speed: ≤ 35m/s;
7. Pollution grade: Grade III;
8. Rain proof grade: Grade 3;
9. The gradient on installation spot shall be not more than 3° ;
10. Ability of anti-earthquake: Horizontal acceleration of ground surface is 0.2g
      Vertical acceleration of ground surface is 0.1g;
11. Installation spot: The spot should has no fire/explosion danger/serious pollution/chemical corrosion and exquisite shake.

Customer should negotiate with manufacturer if the service condition is different from above.

	Items	Unit	Parameters
High Voltage Part	Rated voltage	kV	12
	Rated frequency	Hz	50
	Rated current of main busbar	A	630
	1mm power frequency withstand voltage (to earth and between phases/disconnecting fracture)	kV	42/48
	Lightning impulse withstand voltage (to earth and between phases/disconnecting fracture)	kV	75/85
	Rated short time withstand current	kA/s	25/2
	Rated peak withstand current	kA	63
	Rated short time making current	kA	50
	Rated transfer current	A	1500
	Breaking current of fuse	kA	31.5        40
Low Voltage Part	Rated voltage	V	400
	Rated current of main circuit	A	100-4000
	Rated limiting short circuit breaking ability	kA	80
	Rated operating short circuit breaking ability	kA	50 (65)
	Rated short time withstand current	kA/1s	50 (65)
	Branch current, compensating capacity	According to requirements of users
Transformer	Rated capacity	kVA	30-2000
	Impedance voltage	%	4           4.5
	Tapping range	%	±2×2.5    ±5
	Connection symbol	Y, yn0  D, yn11
Case	Protection level of enclosure	IP23
	Sound level	dB	≤50

Our Best Service For You
1. Pre sale service
A. Make technical solution
B. Send quotation, technical data sheet and drawing
C. Prepare power transmission plan, testing plan,and shipment plan
2. In sale service
A. Supervise the manufacturing schedule totally in accordance with the plan
B. Send photos to customer during every manufacturing process(hold point)
C. Inform the customer one week before testing.
3. After sale service
A. Installation and commissioning, training the workers
B. Quick response within 12 hours any time
C. Provide 12 months gurantee period normally.

Order Instructions
When you choose our company product, please offer following data:
Transformer model:                    
Rated capacity:                     kVA
Phase       :    Three-phase
Single-phase
Frequency   :     50HZ
 60HZ
Rated voltage ( H.V. / L.V. ):               
Tapping range: ±      ×       %
Insulation level: LI      AC      / LI      AC       kv
Veotor group:  Dyn11
            Yyno
            Other
Short-circuit Impedance:       %
Cooling method:  ONAN
               ONAF
Tapping method:  OLTC
               OCTC
               Other
Other requirement:                                           

Notes:
We also can design special products according to customer's particular requirements.
The final dimension is subject to outline drawing.

Thanks for choosing VILLE as your reliable partner and please trust both
of us will create a brilliant future!