Pad mounted transformer

Application
Power
Certification
ISO9001:2000
Structure
Fixed Board
Size
3 Uint
Form
Partly-welded Type
Operation Voltage
High Voltage
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Pad mounted transformer

Description

Pad mounted transformer

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

Technical data

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

StructureView
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.

12kV/24kV/36kv Prefabricated Substation

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.

36kV/40.5kV Prefabricated Substation

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 completeequipment .It is wide used in cities , towns ,factories and oil fields, wharfs etc. It is also used insome 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.

Underground Prefabricated substation

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

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.

Feedback

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