Product Application
LZZBJ9-20/220b current transformer is an indoor epoxy resin cast pillar-type full-duty product. It is used for relay
protection and electric energy measurement in power systems with a rated frequency of 50Hz and a rated voltage of 20kV and below. LZZBJ9-20/220b is installed in a center-mounted switchgear or other types of switchgear.
Implementation Standards
GB/T20840.2-2014
Operating Conditions
● Ambient temperature between -40℃ and 70℃, with a daily average temperature not exceeding 35℃.
● No significant dust, smoke, corrosive gases, steam, or salt contamination.
● Relative humidity: Daily average not exceeding 95%, monthly average not exceeding 90%.
● Altitude not exceeding 1000 meters.
Technical Parameters
Rated Secondary Current: 5A, 1A
| Rated Primary Current (A) | Accuracy Class Combination | Rated Output (VA) | Rated Thermal Current (kA/1S) | Rated Dynamic Stability Current (kA) |
| 20 - 30 | 0.2S/10P15 | 10/15 | 2.5 | 6.25 |
| 0.5/10P15 | 10/15 | |||
| 0.2S/10P20 | 15/20 | 3.5 | 8.75 | |
| 0.5/10P20 | 15/20 | |||
| 40 | 0.2S/10P15 | 10/15 | 4.0 | 10 |
| 0.5/10P15 | 10/15 | |||
| 0.2S/10P20 | 15/20 | 6.0 | 15 | |
| 0.5/10P20 | 15/20 | |||
| 50 - 100 | 0.2S/10P15 | 10/15 | 7.5 | 18.75 |
| 0.5/10P15 | 10/15 | |||
| 0.2S/10P20 | 15/20 | 11.25 | 85 | |
| 0.5/10P20 | 15/20 | |||
| 150 - 500 | 0.2S/10P15 | 10/15 | 45 | 110 |
| 0.5/10P15 | 10/15 | |||
| 0.2S/10P20 | 15/20 | 45 | 110 | |
| 0.5/10P20 | 15/20 | |||
| 600 - 2000 | 0.2S/10P15 | 10/15 | 110 | 215 |
| 0.5/10P15 | 10/15 | |||
| 0.2S/10P20 | 15/20 | 110 | 215 | |
| 0.5/10P20 | 15/20 |
Dimensional Drawing
Keywords
current transformer
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Category
Product Application
LZZBJ9-20/220b current transformer is an indoor epoxy resin cast pillar-type full-duty product. It is used for relay
protection and electric energy measurement in power systems with a rated frequency of 50Hz and a rated voltage of 20kV and below. LZZBJ9-20/220b is installed in a center-mounted switchgear or other types of switchgear.
Implementation Standards
GB/T20840.2-2014
Operating Conditions
● Ambient temperature between -40℃ and 70℃, with a daily average temperature not exceeding 35℃.
● No significant dust, smoke, corrosive gases, steam, or salt contamination.
● Relative humidity: Daily average not exceeding 95%, monthly average not exceeding 90%.
● Altitude not exceeding 1000 meters.
Technical Parameters
Rated Secondary Current: 5A, 1A
| Rated Primary Current (A) | Accuracy Class Combination | Rated Output (VA) | Rated Thermal Current (kA/1S) | Rated Dynamic Stability Current (kA) |
| 20 - 30 | 0.2S/10P15 | 10/15 | 2.5 | 6.25 |
| 0.5/10P15 | 10/15 | |||
| 0.2S/10P20 | 15/20 | 3.5 | 8.75 | |
| 0.5/10P20 | 15/20 | |||
| 40 | 0.2S/10P15 | 10/15 | 4.0 | 10 |
| 0.5/10P15 | 10/15 | |||
| 0.2S/10P20 | 15/20 | 6.0 | 15 | |
| 0.5/10P20 | 15/20 | |||
| 50 - 100 | 0.2S/10P15 | 10/15 | 7.5 | 18.75 |
| 0.5/10P15 | 10/15 | |||
| 0.2S/10P20 | 15/20 | 11.25 | 85 | |
| 0.5/10P20 | 15/20 | |||
| 150 - 500 | 0.2S/10P15 | 10/15 | 45 | 110 |
| 0.5/10P15 | 10/15 | |||
| 0.2S/10P20 | 15/20 | 45 | 110 | |
| 0.5/10P20 | 15/20 | |||
| 600 - 2000 | 0.2S/10P15 | 10/15 | 110 | 215 |
| 0.5/10P15 | 10/15 | |||
| 0.2S/10P20 | 15/20 | 110 | 215 | |
| 0.5/10P20 | 15/20 |
Dimensional Drawing
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0411-83167110
Address
No. 95, West Section, Century Road, Pulandian District, Dalian City, Liaoning Province
