Pad mounted transformer
YB() American-pattern tank-type transformer, also called pad-mounted transformer, …
Pad mounted transformer

Pad mounted transformer

Detailed description

  • Description
  • Technical data
  • 12kV/24kV/36kv Prefabricated Substation
  • 36kV/40.5kV Prefabricated Substation
  • Underground Prefabricated substation
  • Miniaturization Intelligent Prefabricated Substation
YB() American-pattern tank-type transformer, also called pad-mounted transformer, is a functional and energy saving combined transformer which integrates the high voltage device, low voltage device, transformer and other components. Its small but strong body and high efficiency make it suitable for outdoors and indoors usage. Strong tank protection
The sealed tank is made from high quality stainless steel with special design which helps to protect the devices and reduce the heat inside. Excellent cooling and drying system
Temperature control system and humidity control system are installed. When the temperature or humidity reaches certain levels, the systems automatically work to maintain the safe condition inside the tank. Functional and reliable
It owns loop or dual power supply and terminal power supply two ways of power supply. Therefore, it can serve as a substation. Lower cost and higher efficiency
It costs less than the traditional distribution house and only covers the area of about 3cbm.
Safe
All the devices are isolated by thick steel board. The efficient insulation system helps to protect the people from electric accident. Easy installation and maintenance
The installation only requires connecting the cables. The fully sealed transformer design keeps the oil away from the air, so it is free of maintenance.Working conditions:
Application: outdoor
Working temperature: -25°C ~ +45°C
Average temperature of the hottest month: +30℃;
Lowest temperature: -25°C
Max. difference in daily temperature: 25K
Altitude: ≤1,000m
Wind pressure: ≤700Pa
Daily average humidity: ≤95% (at 25°C)
Monthly average humidity: ≤95% (at 25°C)
Installation place leaning angle: <3°
Ambience requirement: free from fire, blast, chemical corrosion, avoid vibration

Item

Unit

Parameter

Rated Voltage Un

HV main loop

kV

12

LV main loop

0.4

Rated Thermal steady current

HV main loop

kA

16

LV main loop

As customer requirement

Rated dynamic steady current

HV main loop

kA

40

LV main loop

kA

As customer requirement

1minPower frequency withstanding voltage

HV switch loop

kV

42

LV main loop

kV

2.5

Assistant loop

kV

2

Lightening impulse withstanding voltage

kV

75

Backup-type fuse short circuit current

kV

40

Insert-type fuse short circuit current

kA

2.5

Sound level

dB

≤50

Protection level

IP33

Structure View
HV:1.Manometer; 2.Oil level gauge; 3.Air valve; 4.Oiling plug; 5.Fuse; 6.Thermometer; 7.Load switch operation indicator plate; 8.Load switch; 9.HV cable contactor; 10.Hanging; 11.Tap changer; 12.Earthing&earthing label;13.Dual-purpose valve; 14.HV cable bracket.

LV: 15.Measuring equipment; 16.LV branch; 17.Measurement lead sealing;18.Transformer oil tank.




General


YB() series products is a kind of set of equipment which assembles the MV switch apparatus, transformer, LV distribution equipment together according to fixed connection scheme. This series substation is suitable for neighborhood unit, hotel, large-scale work site and high building that the voltage is 12kV /24kV/36kV/40.5kV, the frequency is 50Hz and the capacity is under 2500kvA.










Service environment

a) Air temperature: Maximum temperature: +40℃; Minimum temperature:-25℃
b) Humidity: Monthly average humidity 95%; Daily average humidity 90% .
c) Altitude above sea level: Maximum installation altitude: 2500m
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
e) No frequent violent shake


Main technical specifications

Name

Unit

HV equipment

Transformer

LV Equipment

Rated voltage

kV

12/24/36

(12/24/36)/0.4

0.4
Rated current

A

630
3/75-150/3750
Less than 4000
Frequency

Hz

50
Rated Capacity

kVA

50-2500
Pfr withstand

kV

42/50/70/95
2.5
BIL

kV
75/125/170/185

Crust Protection Grade


IP23
Oil type 55; dry type 65
IP23
Noisy Grade

dB


Appearance Dimensions

mm
According to primacy wiring circuit schema



HV Room

LV Room
Transformer Room


Main Designation Characteristics

The crust of the substation is designed according to the foreign advanced technology and physical reality. We provide many kinds of crust material such as aluminum alloy steel composite stainless steel board and non metal material(glass fiber).

The HV side use charge switch or vacuum circuit breaker. The transformer could be oil type hermetically-sealed type and dry type.

The proof of the box is double layers structure and between the layers is filled with foam. There are independent boards in HV and LV room, and in the transformer room will install auto thermal controller heater and cooling equipment.

Note: we offer special customized products according to client’s requirement.



Each different outside coating style for client options


36kV/40.5kV Prefabricated Substation Characteristics

This type substations are the HV side 40.5 kV, LV side 0.4-12 kV and 3 phase outdoor complete equipment .It is wide used in cities , towns ,factories and oil fields, wharfs etc. It is also used in some construction sites. The characteristics are small volume, convenient installation, low cost, high automation safe and reliable operation. Substation is combined with HV switch room,LVswitch room, relay room and transformer room.


Main technical specifications for 36kV/40.5kV Prefabricated Substation

Name
Unit
HV equipment
Transformer
LV Equipment
Rated voltage
kV
40.5
40.5/12/0.69/0.4
12/6.3/0.69/0.4
Rated current
A
Less than 1250

Less than 4000
Frequency
Hz
50
Rated Capacity
kVA
1250-20000
Pfr withstand
kV
70/95
42/2.5(Auxiliary)
BIL
kV
170/185
75
Crust Protection Grade

IP23
Oil type 55; dry type 65
IP23
Noisy Grade
dB



Appearance Dimensions
mm
According to primacy wiring circuit schema


36kV/40.5kV prefabricated transformer substation




Main Primacy Wiring Circuit Schemas for Substation(40.5kV)

Note: we offer special customized products according to client’s requirement.

This equipments also belong to this Prefabricated substation category with a compact and special function of HV, LV and Transformer are all underground. People can enter into it through a well.

This substation is suitable for installing in square seeded strip and park The clients can choose half-buried type or whole-buried type.



Sketch map of half-buried substation


Sketch diagram of whole-buried substation
Miniaturization Intelligent Prefabricated Substation


This series pre-fabricated substation uses imported SF6 ring switch as its HV incoming and outgoing network realized the power ring system easily. And the substation selects integrated automation system which can realize unattended mode.

Best solution for your power!
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