Table of Contents
Application
The LSY three-phase current transformer is suitable for installation in the ring net switch cabinets and switch on the main pillar of the three-phase casing, and zero sequence current for three phase current transformer measurement and protection, can also be used for more cable circuits of zero sequence current measurementand protection. The series of zero sequence current transformer core and secondary windings is made of high-quality epoxy resin vacuum around the note in the fire retardant plastic casing, which has the characteristic of moisture proof, stable performance and dispensing with maintenance.
Code and Implication

Technical Parameters
| Type | Purpose | Measuring current | Protection current transformer | Dual winding current transformer | |||||||
| Stable primary current | Accuracy class and rated load | Accuracy class and rated load | Accuracy class and rated load | ||||||||
| 0.2S | 0.2 | 0.5 | 10P10 | 10P15 | 10P20 | 0.2S | 0.5 | 10P15 | 10P10 | ||
| LSY-10/107 | 75 | – | – | 1 | – | – | – | – | 1 | – | – |
| 100 | – | – | 2.5 | – | – | – | – | 1 | – | – | |
| 150 | – | – | 2.5 | 2.5 | – | – | – | 1.5 | – | – | |
| 200 | – | 2.5 | 2.5 | 2.5 | – | – | – | 2.5 | 2.5 | 5 | |
| 300 | 2.5 | 2.5 | 5 | 2.5 | – | – | – | 2.5 | 5 | 5 | |
| 400 | 5 | 5 | 5 | 5 | 2.5 | – | – | 5 | 7.5 | 7.5 | |
| 500 | 5 | 5 | 10 | 5 | 2.5 | – | – | 5 | 10 | 10 | |
| 600 | 5 | 10 | 10 | 7.5 | 2.5 | – | – | 5 | 10 | 10 | |
| 800 | 10 | 10 | 10 | 7.5 | 2.5 | – | – | 5 | 15 | 10 | |
Product Size






