Ningbo Tianan (Group) Co.,Ltd.
| Payment Terms | T/T, L/C, D/A, D/P, Western Union, MoneyGram |
| Supply Ability | 2000sets per year |
| Delivery Time | 60 work days |
| Packaging Details | International standards package |
| Rated voltage | 12kV 11kV |
| Power capacity | 800KVA |
| Low voltage | 690V 400V |
| HV Rated current | 400A-1250A |
| LV Current | 200A-2500A |
| Power Frequency | AC50HZ |
| Brand Name | Tianan Electric |
| Model Number | ZBW1 |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | T/T, L/C, D/A, D/P, Western Union, MoneyGram | Supply Ability | 2000sets per year |
| Delivery Time | 60 work days | Packaging Details | International standards package |
| Rated voltage | 12kV 11kV | Power capacity | 800KVA |
| Low voltage | 690V 400V | HV Rated current | 400A-1250A |
| LV Current | 200A-2500A | Power Frequency | AC50HZ |
| Brand Name | Tianan Electric | Model Number | ZBW1 |
| Place of Origin | China | ||
| High Light | packaged transformer substation ，power distribution substation | ||
HV / LV Prefabricated Compact Transformer Substation Combined Substation
Service condition
Max. monthly average temperature: ≤ 35℃
Max. yearly average temperature: ≤ 25℃
Vertical acceleration of ground surface is 0.1g;
Customer should negotiate with manufacturer if the service condition is different from above.
Technical parameters
| Items | Unit | Parameters | |
| High Voltage Part | Rated voltage | kV | 12 24 |
| Rated frequency | Hz | 50 | |
| Rated current of main busbar | A | 630 | |
| 1mm power frequency withstand voltage (to earth and between phases/disconnecting fracture) | kV | 42/48 | |
| Lightning impulse withstand voltage (to earth and between phases/disconnecting fracture) | kV | 75/85 | |
| Rated short time withstand current | kA/s | 25/2 | |
| Rated peak withstand current | kA | 63 | |
| Rated short time making current | kA | 50 | |
| Rated transfer current | A | 1500 | |
| Breaking current of fuse | kA | 31.5 40 | |
| Low Voltage Part | Rated voltage | V | 400 |
| Rated current of main circuit | A | 100-4000 | |
| Rated limiting short circuit breaking ability | kA | 80 | |
| Rated operating short circuit breaking ability | kA | 50 (65) | |
| Rated short time withstand current | kA/1s | 50 (65) | |
| Branch current,compensating capacity | According to requirements of users | ||
| Transformer | Rated capacity | kVA | 30-2000 |
| Impedance voltage | % | 4 4.5 | |
| Tapping range | % | ±2×2.5 ±5 | |
| Connection symbol | Y, yn0 D, yn11 | ||
| Case | Protection level of enclosure | IP23 | |
| Sound level | dB | ≤50 | |
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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