Ningbo Tianan (Group) Co.,Ltd.
| Payment Terms | L/C, T/T, D/A, D/P |
| Supply Ability | 2000 sets/ year |
| Delivery Time | 50 work days |
| Packaging Details | Nude |
| Voltage rating | 11KV12kv |
| Cooling Method | Oil-immersed Type Transformer |
| Capacity | 1250kVA |
| Frequency | Power Frequency |
| Brand Name | TIANAN |
| Model Number | ZGS-Z. F-/11 |
| Certification | ISO9001-2000, ISO9001, CCC |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T, D/A, D/P | Supply Ability | 2000 sets/ year |
| Delivery Time | 50 work days | Packaging Details | Nude |
| Voltage rating | 11KV12kv | Cooling Method | Oil-immersed Type Transformer |
| Capacity | 1250kVA | Frequency | Power Frequency |
| Brand Name | TIANAN | Model Number | ZGS-Z. F-/11 |
| Certification | ISO9001-2000, ISO9001, CCC | Place of Origin | CHINA |
| High Light | oil immersed distribution transformer ，packaged transformer substation | ||
Main technical parameter of transformer
Voltage combination
Rated voltage of HV side: 12kV
Rated voltage of LV side: 0.27kV, 0.3kV, 0.315kV, 0.4kV
HV tapping range+5% or + 2x2.5%
Connecting symbol: Dyn11 or Yyn0
Condensation controller and other auxiliary equipment can be added in the body as per clients' requests.
Insulation class: A class
No. of phases: three
Note: As per different requirement from client, the capacity of transformer can be customized.
Product technical parameter
11kV oil immersed load switch
Table 1
S/N |
Name | Unit | Parameter | ||
| 1 | Rated voltage | KV | 12 | ||
| 2 | Rated current | A | 315 | 630 | |
| 3 | Rated frequency | Hz | 50 | ||
| 4 | Rated short-circuit withstand current | kA/2s | 12.5 | 20 | |
| 5 | Rated peak withstand current | kA | 31.5 | 50 | |
| 6 | Mechanical endurance | times | 2000 | ||
| 7 | 1 min power withstand voltage (phase-to-phase, phase-to-earth) | kV | 42 | ||
| 8 | Lightning impulse level (phase-to-phase, phase-to-earth) | KV | 75 | ||
11kV Fuse
Table 2
| Rated voltage | Fuse rated current A | Rated Max. breaking current kA | Remark |
| 15.5 | 63, 80,100,125,150 | 50 | off line |
Lightning arrester
Table 3
| Rated voltage | Continuous operating voltage | DC reference voltage (1mA) | Nominal discharging current | Nominal discharging current residual | 2ms square-wave current withstand value |
| 17kV | 13.6kV | ≥24kV | 5kA(peak value) | ≤45kV (peak value) | ≥250A(peak value) |
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
1969
Total Annual:
250000000-300000000
Employee Number:
3000~3500
Ecer Certification：
Verified Supplier
Ningbo Tianan (Group) Co, Ltd is a famous leading influential enterprise of the power transmission equipment manufacturing in China.It was founded in 1969,currently under the group, we have 1 national-level R&D center, 2 provincial-level R&D center, 10 professional companies, 70 sales office... Ningbo Tianan (Group) Co, Ltd is a famous leading influential enterprise of the power transmission equipment manufacturing in China.It was founded in 1969,currently under the group, we have 1 national-level R&D center, 2 provincial-level R&D center, 10 professional companies, 70 sales office...
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