Rockwill Electric Group
11/0.4kV 800kVA Mining substation
Mining substation / Package mining transformer substation Rockwill provide with pacakge mining substation for industry miner, It is high protection class heavy duty substation. ...

Detailed description

  • Description
  • Technical data
  • 12kV/24kV/36kv Prefabricated Substation
  • 36kV/40.5kV Prefabricated Substation
  • Underground
  • Miniaturization Intelligent Prefabricated Substation

Miningsubstation / Package transformer substation

Product description

This products have following characters: serialization, modularization, multiple functions, complete facility, small volume, light weight and good looking. They meet the requirement of IEC1330 standard and applicable to city public distribution, street lamp power supply, as well as power consumption in industrial/mineral enterprises, high-rises, residential areas, oil fields, jetty and site construction.

 

Feature

The product consists of HV distribution unit, and LV distribution unit and is divided into HV chamber, transformer chamber and LV. The HV chamber has complete functions, it with HXGN-10 ring main unit forms the primary supply system, may be arranged into several supply modes(ring main supply, terminal supply and dual-source supply) and also may be provided with HV metering elements to meet requirements on HV metering. Model S9,S11 and other low oil-immersed transformers or dry transformers else may be selected. The transformer chamber is designed to have automatic forced air cooling system and lighting system. The LV chamber can constitute user-required power supply schemes in a panel type or cabinet type structure, provide several functions(power distribution, lighting distribution reactive power compensation, and metering of electrical power) to meet users’ different requirements. And facilitate supply management and improve power supply quality.

The HV chamber is compact in structure and is provided with mis-operation preventive interlocking function. Each chamber has automatic and forced lighting device. In addition, all elements in HV and LV chamber are reliable in performance and easy in operation, which makes the products safe and reliable and easy in operation and maintenance.

It adopts both natural ventilation and forced ventilation to each good ventilation and cooling effects. The transformer chamber and LV chamber are provided with air ducts. The blower fan has a temperature controller to automatically start and stop as per the preset temperature, thus ensuring on-load running of transformer.

The casing body prevents rain water and foreign matter from entrance and it is made of hot-galvanized color steel sheet or anti-rust aluminum alloy sheet and subjected to anti-corrosin treatment. It looks artistic, keeps long-term corrosion, water and dust-proof under outdoor conditions, and prolong service life of transformer.

item
Unit
H.V.unit
Power transformer
(S11:SGB(B):SC(B))
L.V.unit
 
 
 
 
Load switch
Fuse
rated voltage
kV
12
12
10/0.4
0.4
Rated power
kVA
 
 
 
 
≤1600
 
 
Power frequency test voltage
kV/1min
42
 
 
35
2.0  2.5
Impulse test voltage
kV
75/85
 
 
75
8.0
Rated current(main circuit)
A
630
 
 
 
 
 
 
Rated switch circuit
kA
 
 
31.5
 
 
 
 
Short circuit switch current
kA
50
 
 
 
 
10-65(15)
Dynamic current
kA
20
 
 
 
 
 
 
Noise level
dB
 
 
 
 
<28 <75
 
 
Protect class
The front side of the box is IP43, the top cover ventilation section and the bottom of the box is not lower than IP23

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.

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.

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.

About Us

Success References