LQ-H Series Transformer Load Box | CT/PT Burden Testing Equipment
Precision Load Solution for Transformer Verification
The LQ-H Series Transformer Load Box provides adjustable resistive-inductive loads for accurate burden testing of current and voltage transformers. Designed to JJG313-94 and JJG314-94 standards, this VILVA-compliant equipment combines high capacity with exceptional stability in a portable package.
Product Parameters
FY96-H Current Transformer Load Box
| environmental conditions | temperature | 15～25℃ |
| humidity | <80%(25℃) | |
| elevation | <1500m | |
| mains frequency | 50Hz | |
| rated capacity | COS0.8: 2.5VA-60VA; COS1.0: 2.5VA-20VA; | |
| current range | 1%～120% | |
| secondary current | 5A（can customize） | |
| power factor | 0.8、1.0 | |
| degree of exactitude | ±3%±0.0025VA | |
| testing voltage | 2kV | |
| boundary dimension(Band dimensions) | 250×350×175mm3 | |
| weight | 8kg | |
FY95-H Voltage Transformer Load Box
| environmental conditions | temperature | 15～25℃ |
| humidness | <80%(25℃) | |
| altitude | <1500m | |
| mains frequency | 50Hz | |
| rated capacity | 1.25VA-158.75VA | |
| voltage range | 20%～120% | |
| secondary current | 100/√3V(can customize) | |
| power factor | 0.8、1.0 | |
| degree of exactitude | ±3%±0.05VA | |
| testing voltage | 2kV | |
| boundary dimension(Band dimensions) | 250×350×175mm3 | |
| weight | 8kg | |
Key Features
Dual-Function Design
Simultaneous CT & PT burden testing capability
Standard Compliance
Meets JJG313 (CT) and JJG314 (PT) verification requirements
Optimized Portability
30% lighter than conventional load banks
Industrial Durability
Stainless steel components for long-term stability
Configuration Options
CT Load Box
Precision low-inductance resistors
1A/5A/10A automatic range sensing
PT Load Box
High-voltage tolerant design
Power factor adjustment 0.8-1.0
Operational Benefits
Simplified Verification: Integrated CT/PT testing reduces equipment needs
Error Prevention: Color-coded terminals prevent miswiring
Maintenance-Free: Solid-state components eliminate wear parts
Field-Ready: Lift handles and reinforced corners for transport
Typical Applications
Meter Calibration Labs
Reference burden for accuracy certification
Transformer Manufacturing
Production-line burden testing
Field Maintenance
On-site verification of installed CTs/PTs
Protection Testing
Relay calibration under realistic loads
