Products
YBW-40.5/12 35KV Pad Mounted Prefabricated Distribution Compact Transformer Elec
 YBW-40.5/12  Prefabricated substation1. General Description
1.1 Application: For the higher voltage 40.5 kV, the lower voltage 12 kV three-phase AC 50 hz outdoor equipment (7.2). And widely be used to cities, towns, factories and oil field etc. Also be applied to some large construction sites, transformation and distribution of electrical energy. Depending on complete sets of strong, it can cover some small areas, easy installation and used with the advantage of low cost, high degree of automation, safe and reliable running etc.
 
1.2 Standards : IEC 1330
1.3 Parameters: Rated voltage: 12~40.5K
2.1.Compact design
2.2.Easy operation and installation
2.3.Reliable interlock
2.4.Less Maintenance
 
3.Technical Data
3.1 Main technical parameter of VCB ZN85-40.5 or VCB ZN12-40.5 equipped to main switch in KYN61-40.5 or XGN-40.5 switchgear.
No. Item Unit Data
3.1.1 Rated voltage kV 40.5
3.1.2 Rated insulation level kV 95 for 1min power frequency withstand voltage(effective)
kV 185 for rated lightning impulse withstand voltage (effective)
3.1.3 Rated frequency Hz 50
3.1.4
 
Rated current A 1250   1600
 
3.1.5
Rated short-circuit breaking current kA 25    31.5
Rated short-time withstand current kA 25   31.5
Rated short circuit continuous time s 4
3.1.6 Rated peak withstand current kA 63   80
Rated short-circuit closing current(peak) kA 63   80
3.1.7 Rated operation sequence   Open-0.3s-close open-180s-close open
3.1.8 Breaking time ms <80
3.1.9 Rated breaking current(capacitor) A 630
3.1.10 Mechanical life   10000times
3.1.11 Rated operating voltage V -110/~110,-220~220
3.1.12 The current breaking times for rated short-circuit broken   20 times
      
3.2.See technical parameters of VCB ZN63A(VS1) installed in XGN36-12(DXG-12), KYN28A-12 related product of our company.
No. Item Unit Data Data Data Data Data
3.2.1 Rated voltage kV 12 12 12 12 12
3.2.2 Rated current A 630 1250 630,1250 630,1250,1600 1250,1600,2000 1250,2500,3150
3.2.3 Rated insulation level kV 42 42 42 42 42
75 75 75 75 75
3.2.4 Rated short-circuit breaking current kA 16 20 25 31.5 40
3.2.5 Rated short-circuit closing current(peak) 40 50 63 80 100
3.2.6 Rated peak withstand current 40 50 63 80 100
3.2.7 Rated short-time withstand current 16 20 25 31.5 40
3.2.8 The current breaking times for rated short-circuit broken times 50 50 50 50 30
3.2.9 Rated short circuit continuous time S 4 4 4 4 4
3.2.10 Rated operation sequence Open-t-close-open-180s-close-open
3.2.11 Mechanical life time 20000 20000 20000 20000 20000
3.2.12 Rated breaking current(unit capacitors) A 630 630 630 630 630
3.2.13 Rated breaking current(back to back capacitors) A 400 400 400 400 400
※Noted: 16KA,20KA,31.5KA: t=0.3s; 40KA: t=180s
 
3.3.Technical parameter of transformer


Model Rated voltage (kV) Rated capacity (kV) Transformation ratio (kV /kV)
SZ7 35 30,   50 35/0.4
SZ9 10 30,   50 35/0.4
3.4 CT
3.5. Technical parameter of XGN36-12(DXG-12) with VCB ZN28-12 
No. Item Unit Data
3.5.1 Rated voltage kV 12
3.5.2 Rated current A 630,1000,1250,1600,2000
3.5.3 Rated short-circuit breaking current kA 20,25,31.5
3.5.4 Rated short-circuit closing current(peak) kA 50,63,80
3.5.5 Rated peak withstand current kA 50,63,80
3.5.6 Rated short-time withstand current kA 20,25,31.5
3.5.7 Rated short circuit continuous time S 4
3.5.8 The current breaking times for rated short-circuit broken time 30
3.5.9 Rated operation sequence Open-0.3s-close-open-180s-close-open
3.5.10 1min power frequency withstand voltage(effective)   42
3.5.11 Lightning impulse withstand voltage (peak)   75
3.5.12 Mechanical life time 10000
3.5.13 Rated operating voltage A -110/~110, -220/~220,
3.5.14 Center distance for Phase-phase A 210±2.5, 230±2.5(≤1600A), 250±2.5(2000A),
3.6. Technical parameter of surge arrester
Item Rated voltage(kV) Residual voltage(kV)
HY5WZ 42 134
 
4.Type Meaning and specification
YBW-40.5/12:
                       Type of VCB
                         Lower rated voltage(kv)
                          Higher rated voltage(kV)
                         Design no.
                          Prefabricated substation

 
 
 
5.Working Condition
5.1 Ambient air temperature: -15℃~ +40℃(-25℃~ +45℃ available as customized products).
5.2 Altitude: ≤1000m
5.3 Relative humidity: Daily average ≤95%
Monthly average ≤ 90%
5.4 Earthquake intensity: ≤magnitude 8.
5.5 Air speed: ≤34m/s
5.6 Applicable in the places without steam, explosion, corrosive, and flammable gas.
※Note: Customized products are available according to your requirements.





General structure

The overall layout of the substation is "H" shaped, consisting of 35kV switch equipment room, 10kV switch equipment room, automatic control room, transformer and so on.The control room and the 35kV or 10kV switch room shall form a box body according to the specific situation, and the other switch room shall form a box rest. The transformer shall be placed outside and the transformer installation area shall be formed through certain protection and spacing.The transformer is connected to the two switches by overhead bus or cable.

Generally, the cabin is made of high quality steel plate after surface corrosion protection and spraying treatment, with insulation material in the middle, which can effectively ensure the normal work of the temperature control system inside the box.

In addition, the box material can be anodized aluminum alloy plate, or made of color steel composite plate.

 

△ 40.5kV switch equipment room

Xgn-40.5 box type fixed switch cabinet, ABB gis-zx1 40.5kv type switch cabinet and kyn61-40.5 type switch cabinet can be configured according to the actual use requirements of the substation.

1. Xgn-40.5 (2)1600-31.5 has the characteristics of novel and compact structure, small size and convenient maintenance, which is very suitable for 35kV substation.

2. ABB gis-zx1 40.5kv switch cabinet has the following advantages:

A. gis-zx1 40.5kv switchgear seals all switch rooms, bus rooms and cable joints in SF5 gas chamber.

B. Peak value. MV-PART (medium voltage parts) will not require maintenance during its entire service life.

C. Not affected by corrosive air of external environment such as chemical industry, cement production industry and salty air in coastal and salt mine areas.

D. can be used at high altitudes.

3. Kyn61-40.5 removable switchgear can be used for convenient maintenance of components.

 

Delta 12kV switch equipment room

Different types of switchgear can be configured according to the actual requirements of users.

1. Dxg-12 (xgn36-12) fixed switchgear can be equipped with zn63a-12 (VS1) or zn28-12 vacuum circuit breaker.

2. Type kyn28a-12 armoured removable switchgear, available with zn63-12 (VS1) or ABB VD4 vacuum circuit breaker.

3. Hxgn17a-12 vacuum ring network cabinet can be equipped with fzn25-12. Hall 630-20 vacuum load switch or fzrn25-12 / t125-31.5 load switch plus fuse combinator.

4. Hxgn15-12 type sulfur hexafluoride ring network cabinet, can own fln36-12d or flrn36-12d type sulfur hexafluoride load switch or load switch plus fuse combination electrical appliances.

 

△ Relay room

Ac panel, dc panel, signal panel, motion control panel (RTU) carrier panel or optical fiber terminal panel shall be installed in the relay protection room.

Note: according to customer requirements, this substation can be protected by conventional relays

 
3.Technical Data
3.1 Main technical parameter of VCB ZN85-40.5 or VCB ZN12-40.5 equipped to main switch in KYN61-40.5 or XGN-40.5 switchgear.
No. Item Unit Data
3.1.1 Rated voltage kV 40.5
3.1.2 Rated insulation level kV 95 for 1min power frequency withstand voltage(effective)
kV 185 for rated lightning impulse withstand voltage (effective)
3.1.3 Rated frequency Hz 50
3.1.4
 
Rated current A 1250   1600
 
3.1.5
Rated short-circuit breaking current kA 25    31.5
Rated short-time withstand current kA 25   31.5
Rated short circuit continuous time s 4
3.1.6 Rated peak withstand current kA 63   80
Rated short-circuit closing current(peak) kA 63   80
3.1.7 Rated operation sequence   Open-0.3s-close open-180s-close open
3.1.8 Breaking time ms <80
3.1.9 Rated breaking current(capacitor) A 630
3.1.10 Mechanical life   10000times
3.1.11 Rated operating voltage V -110/~110,-220~220
3.1.12 The current breaking times for rated short-circuit broken   20 times
      
3.2.See technical parameters of VCB ZN63A(VS1) installed in XGN36-12(DXG-12), KYN28A-12 related product of our company.
No. Item Unit Data Data Data Data Data
3.2.1 Rated voltage kV 12 12 12 12 12
3.2.2 Rated current A 630 1250 630,1250 630,1250,1600 1250,1600,2000 1250,2500,3150
3.2.3 Rated insulation level kV 42 42 42 42 42
75 75 75 75 75
3.2.4 Rated short-circuit breaking current kA 16 20 25 31.5 40
3.2.5 Rated short-circuit closing current(peak) 40 50 63 80 100
3.2.6 Rated peak withstand current 40 50 63 80 100
3.2.7 Rated short-time withstand current 16 20 25 31.5 40
3.2.8 The current breaking times for rated short-circuit broken times 50 50 50 50 30
3.2.9 Rated short circuit continuous time S 4 4 4 4 4
3.2.10 Rated operation sequence Open-t-close-open-180s-close-open
3.2.11 Mechanical life time 20000 20000 20000 20000 20000
3.2.12 Rated breaking current(unit capacitors) A 630 630 630 630 630
3.2.13 Rated breaking current(back to back capacitors) A 400 400 400 400 400
※Noted: 16KA,20KA,31.5KA: t=0.3s; 40KA: t=180s
 
3.3.Technical parameter of transformer
Model Rated voltage (kV) Rated capacity (kV) Transformation ratio (kV /kV)
SZ7 40.5 1000~20000 35/10/35/6.3
SZ9 40.5 1000~20000 35/10/35/6.3


Technical parameters of current transformer
Model Rated primary current  Rated secondary current Accurate grades times Secondary load
LCZ-35Q 40~50 5 0.5/10P10 less than 10 50
LZJC-10 100~1000 5 0.5/10P10    
 

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