LA-10Q High-voltage Epoxy Cast Current Transformer
Overview
The LA-10Q current transformer is suitable for power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 10kV, for electric energy metering, current measurement, and relay protection. The product complies with GB 1208 "Current Transformers".
Model and Meaning


Normal Operating Conditions
Installation site: Indoor.
Ambient temperature: Maximum 40C; Minimum -5C; Daily average not exceeding 30C.
Atmospheric conditions: No heavy pollution in the atmosphere. The LA-10Q current transformer can operate stably for a long time under the above conditions.
Technical Parameters
| Product Model | Rated Primary Current (A) | Accuracy Class Combination | Rated Output (VA) | Rated Short-time Thermal Current (kA/s) | Rated Dynamic Stability Current (kA/s) |
| LA-10Q | 5 | 0.2/10P10 0.5/10P10 | 10/15 | 0.45 | 0.8 |
| 10 | 0.9 | 1.6 |
| 15 | 1.4 | 2.4 |
| 20 | 1.8 | 3.2 |
| 30 | 2.7 | 4.8 |
| 40 | 3.6 | 6.4 |
| 50 | 4.5 | 8 |
| 75 | 6.8 | 12 |
| 100 | 9 | 16 |
| 150 | 13.5 | 24 |
| 200 | 18 | 32 |
| 300 | 22.5 | 40.5 |
| 400 | 30 | 54 |
| 500 | 30 | 54 |
| 600 | 30 | 54 |
| 800 | 40 | 72 |
| 1000 | 50 | 90 |
Rated secondary current: 5A or 1A.
Rated insulation level: 12/42/75kV.
Structure and Features
Transformers with a rated primary current of 5~300A have a multiple-turn through-type semi-enclosed cast insulation structure. The laminated core is exposed, and the cast body is mounted on a panel with a nameplate, grounding bolt, and four mounting holes.
Transformers with a rated primary current of 400~1000A have a single-turn through-type fully enclosed cast insulation structure. The secondary coil is evenly wound on a ring core, and the cast body is mounted on a panel with a nameplate, grounding bolt, and four mounting holes. The LA-10Q current transformer is compact and easy to install.
Outline Drawing and Installation Dimensions

Ordering Information
Please provide the following parameters when ordering:
- Product model
- Rated current ratio (A)
- Accuracy class combination and rated output (VA)
- Altitude (m)
Note: If users have special requirements, they can be determined through negotiation with our company.