20kV Outdoor Post Current Transformer
20kV Outdoor Post Current Transformer
Application
LZZW-20 series outdoor type current transformer, is used for 20kV, 50/60Hz power system. When used with the measuring instruments in the secondary circuit to detect the operation of the power system and transmit the production and consumption of electric energy. When used with protection relay, it is applied to protection of over voltage, over-current, overload and single-phase grounding for power system and equipment.
Specifications
Outline Dimension
Parameter
| Rated transfomation ratio(A) | Accuary casses combination | Rated output (VA) | ALF | FS | Short-time thermal current lth(kA/S) | Rated dynamic current ldyn(kA) | ||
| Measuring | Protective | |||||||
| 0.2(S) | 0.5 | 10P | ||||||
| 10-200/5 | 0.2(S)/0.2(S) 0.2(S)/0.5 0.2(S)/10P 0.5/10P 0.2S/0.5/10P | 10 15 | 15 | 15 | 10 15 20 | 5 (10) | 150l1n | 375l1n |
| 300/5 | 31.5 | 80 | ||||||
| 400/5 | 31.5 | 80 | ||||||
| 500/5 | 40 | 100 | ||||||
| 600/5 | 50 | 125 | ||||||
| 800/5 | 20 | 63 | 125 | |||||
| 1000/5 | 80 | 160 | ||||||
| 1200～1500/5 | 80 | 160 | ||||||
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