LQ Standard Current Transformer | Precision CT Calibration Equipment
Primary Reference for CT Accuracy Testing
The LQ Standard Current Transformer serves as the fundamental calibration standard for current transformer (CT) error verification. Designed with precision wound primary and secondary coils, this KXLDZC-compliant instrument delivers laboratory-grade accuracy in field or lab environments.
Product Parameters
technical parameters
| service conditions | temperature | －5℃～+40℃ |
| humidity | <80% | |
| The workplace should not have strong external electromagnetic fields unrelated to work | ||
| Allow long service at rated current | ||
| boundary dimension | HL-22/23 | 370*170*440mm3 |
| HL-32/33 | 330*190*430mm3 | |
| HL-53/62/63）/(HL-62C/63C | 470*230*570mm3 | |
| weight | HL-22/23 | 13kg |
Core Technical Features
Dual-Ratio Operation
Self-correcting 5/5A and 1/1A current ratios
Winding Configuration
Precision-matched primary & secondary windings
Portable Design
Integrated casters for workshop mobility
Traceable Accuracy
Nameplate-standardized current ratios
Operation Principles
Ratio Verification
Connect primary winding to current source
Measure secondary output with reference standard
Compare actual ratio to nameplate value
Self-Correction Mode
5/5A or 1/1A auto-compensation
Eliminates need for external ratio correction
Typical Applications
CT Manufacturing QA: Production-line ratio error testing
Meter Calibration Labs: Reference standard for accuracy certification
Protective Relay Testing: Secondary injection test validation
Field Service: On-site CT verification in substations
Product Advantages
Metrology-Grade
Meets IEC 61869-2/GB 1208 standards
Time-Saving
Self-correcting function reduces calibration time by 40%
Future-Proof
Compatible with both analog and digital test systems
