The LSY three-phase integrated current transformer is suitable for installation on the three-phase bushings of the ring network switch cabinet and the switch on the main column. It is used for the measurement and protection of three-phase current and zero-sequence current. It can also be used for multi-cable circuits. Measurement and protection of zero sequence current.
The core and secondary winding of this series of zero-sequence current transformers are vacuum-cast with high-quality epoxy resin in a flame-retardant plastic shell, which is moisture-proof, has stable performance and requires no maintenance.
Model Meaning
| Type | Rated current ratio (A) | Single coil rated secondary output (VA) | Double coil rated secondary output (VA) | ||||
| 0.2S | 0.2 | 0.5 | 10P10 | 0.5 | 10P10 | ||
| LSY3-10/107 | 75/5 | / | / | 1 | / | 1 | / |
| 100/5 | / | / | 2.5 | / | 1 | / | |
| 150/5 | / | / | 2.5 | 2.5 | 1.5 | / | |
| 200/5 | / | 2.5 | 2.5 | 5 | 2.5 | 5 | |
| 300/5 | 2.5 | 2.5 | 5 | 5 | 2.5 | 5 | |
| 400/5 | 5 | 5 | 5 | 7.5 | 5 | 7.5 | |
| 500/5 | 5 | 5 | 10 | 10 | 5 | 10 | |
| 600/5 | 5 | 10 | 10 | 10 | 5 | 10 | |
| 800/5 | 10 | 10 | 10 | 10 | 5 | 10 | |
Overall dimension drawing
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