Rockwill Electric Group
Prefabricated Switchgear Substation
Rockwill is a professional manufacturer and designer of prefabricated moible substation with SF6 switch (switchgear) station,completed mobile substation. ...

Detailed description

  • Description
  • main Characteristics
  • 36kV/40.5kV Prefabricated Substation
  • Underground Prefabricated substation
  • Miniaturization Intelligent Prefabricated Substation

General:

Rockwill providing with Designing  & manufacturing for Prefabricated mobile substation with outdoor SF6 switch (switchgear) station, completed moible substation:
Prefabricated outdoor SF6 switch station for the exchange of 50Hz, rated voltage 12kV, 24kV, 40.5kV power distribution 630A rated current distribution network of secondary structure. Can be used as urban residential areas and factories mainstream electricity supply program. The opening and closing the main switch by the use of SF6 gas-insulated and insulated the entire load interrupter switch, with a number of international patent technology. First imported into the round of insulating material made of branches of cable connectors, protection grade can reach IP68. Opening and closing the main use of 304 stainless steel outside the box and then the second spray process.
a. anti-filthy, anti-corrosion;
b. full-confined, all-insulated, maintenance-free;
c. ring network with SF6 load switch-type inflatable counters;
d. touch with silicone rubber cable plugs;
e. to meet local user groups focus on electricity supply;
f. with ordinary cable distribution boxes all the characteristics;
g. institutions can be allocated to electric operation;
h. can be set aside for distribution automation CT, PT interface.
The whole insulation, all sealed, anti-Gel; into line with three-position switch or circuit breaker SF6 load; into the round about at home, safe and reliable; can be allocated

to electric operation agencies, and set aside automation interface; landscape design; wiring convenient and reliable, into the round can be equipped with anti-type fault indicator.

 

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.

Prefabricated Substation factory

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.

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