LQ Current Generator for CT Calibration | 50Hz Transformer Testing Equipment
Precision Current Injection for Transformer Testing
The LQ Current Generator provides stable 50Hz primary current injection for calibration of current transformers (CTs). This essential test equipment features a robust winding configuration with 220V input and up to 100A output capacity, designed specifically for metrology labs and field testing applications.
Technical parameters
| service conditions | temperature | －5℃～+40℃ |
| humidity | ＜80% | |
| Allow long service at rated current | ||
| Allow 1.5 times overload for half an hour | ||
| boundary dimension | SL-4 | 420*240*4500mm3 |
| SL-7 | 600*350*700mm3 | |
| weight | SL-4 | 14kg |
Core Design Features
Winding Configuration
Input winding: 220V AC
Output winding: ≤100A
Through-core winding design
Current Rating System
Nameplate indicates rated through-current
Multi-turn operation reduces allowable current
Inverse relationship between turns and current rating
Operation Principles
Turn-Current Calculation
Maximum allowable turns = Nameplate output capacity / (Output current × Voltage per turn)
Multi-Turn Operation
When using multiple turns through core:
Allowed current decreases proportionally
Example: 100A single-turn becomes 50A at 2 turns
Typical Applications
CT Ratio Verification: Primary current injection for accuracy testing
Relay Calibration: Protective relay testing with precise current levels
Meter Validation: Energy meter testing under load conditions
Research Labs: Variable current source for electrical experiments
Product Advantages
Precision Current
Stable 50Hz output for accurate CT testing
Flexible Configuration
Adjustable turns ratio for various test scenarios
Portable Design
Integrated casters for workshop mobility
Robust Construction
Industrial-grade windings for continuous operation
