Compact transformer substation, pad-mounted transformer, American substation

 SUBSTATION 15KV 1)SLD   2) Place arrangement  HMedium voltage compartment  TDistribution transformer compartment  LLow voltage switchgear compartment 3) Control and protection (see refer attached file)4) Communication5) LV system  6) Description of main equip

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Compact Transformer Substation Pad Mounted Transformer American Substation
Compact Transformer Substation Pad Mounted Transformer American Substation





Compact Transformer Substation Pad Mounted Transformer American Substation
 

SUBSTATION 15KV

 

1)SLD

 

 

 

2) Place arrangement

 

 

H

Medium voltage compartment

 

 

T

Distribution transformer compartment

 

 

L

Low voltage switchgear compartment

 

3) Control and protection (see refer attached file)

4) Communication

5) LV system

 

 

6) Description of main equipment

 

The units are to be supplied as fully equipped packaged substations, including

a) Outer housing

b) Medium voltage compartment

c) Distribution transformer compartment

d) Low voltage switchgear compartment

 

7) Technical data sheet

2.1 Electrical data

       Nominal voltages                             15kV                         

       Rated Voltage                                24kv               

       Number of phases                            Three                          

       Rated Frequency                             50 Hz                          

       Rated Short-time   

       Withstand current for 1s                    16kA                          

       Power frequency withstand voltage           50kV               

         Lightning Impulse withstand

         Voltage (1.2/50 ms)                      125 kv     

 

 

3. Electrical Design Standard

 

3.1 Transformer.

 

The substation is designed to cater for bushings on opposite sides of the transformer. 

The bushings on the transformers should be covered, preferably by using cable entry transformers. If not, then suitable earthed metal cable covers shall be installed on the transformer to remove all bare live connections.

 

3.2 High voltage switchgear

 

Various types of high voltage switchgear are available which will cover all applications. Typical one is a Ring Main Unit comprising two feeder cable switches and one fused switch/circuit breaker for one transformer

 

3.3. Low Voltage Switchboard

 

The low voltage switchboard will have a load break switch for each transformer. The customer's supply is to be protected with either fuses - up to 1200 Amp (two stripe fuses in parallel) - or circuit breakers - above 1200 amps. The low voltage board also provides the facility for supplying the substation's light and power and ventilation and sump pump equipment if installed and also contains maximum demand indicators.

 

-   Service voltage                                      15kV            

       -      Off-load tapping                         ± 2x2.5%     

       -      Ratted low-voltage at no-load               400 V           

       -      System frequency                            50 Hz           

       -      Vector group                                 Dyn5            

       -      Short-circuit impedance                   According to IEC60076

       -      Highest system voltage                      24 kV                 

       -      Rated lightning impulse withstand voltage

              (1.2/50 ms) for MV windings                 125 kV         

       -      withstand voltage for MV windings            50kV     

       -      Rated one minute power frequency

       -      Withstand voltage for LV windings            3 kV     


Compact Transformer Substation Pad Mounted Transformer American Substation
Compact Transformer Substation Pad Mounted Transformer American Substation
Compact Transformer Substation Pad Mounted Transformer American Substation

Compact Transformer Substation Pad Mounted Transformer American Substation
Compact Transformer Substation Pad Mounted Transformer American Substation
Compact Transformer Substation Pad Mounted Transformer American Substation

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Compact Transformer Substation Pad Mounted Transformer American Substation
Compact Transformer Substation Pad Mounted Transformer American Substation



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Contact Person: Ms. Diana
Office Address: No. 555, Chezhan Road, Liushi, Yueqing city, Zhejiang,China
Factory Address: No111, Xiaolan Industrial zone, Nanchang, Jiangxi, China 
Post Code:325604
 

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