LQTT Series 400kV/800kVA Industrial AC Test Transformer

High-Capacity Testing Solution for Utility-Scale Applications

Core Specifications

Dielectric Performance

Withstand Capabilities

Partial Discharge (PD)

• <5 pC at 400 kV (Full test system configuration)

Protection & Safety Systems

• Short Circuit Capability: Withstands 320kV discharge via protective resistor

• LV Surge Protection: Integrated 0.6kV lightning arrester

• Dielectric Safety Margin: 10% above rated voltage (440kV vs 400kV)

Technical Advantages

1. Industrial-Grade Power Density

800kVA capacity enables testing of utility-scale equipment (GIS, power transformers, cables) beyond standard lab capabilities.

2. Extended Duty Cycle

Unique 2/3 continuous rating provides sustained testing capability without competitor downtime limitations.

3. Fault-Tolerant Design

Certified short-circuit withstand (320kV discharge) ensures survival in field-testing accidents.

4. Grid-Simulation Ready

Dual-frequency operation (50/60Hz) supports global testing standards including IEEE C57.12.90.

Target Applications

• Utility substation equipment certification

• HVDC converter transformer testing

• Extra-high voltage cable type tests

• Generator step-up transformer validation

• National grid compliance testing centers

Performance Validation

*"Engineered for ISO 17025-accredited laboratories requiring uncompromised 800kVA capacity. With 440kV withstand capability, industrial-grade thermal management, and integrated surge protection, this transformer meets the most stringent IEC 60076-11 Class III requirements for power apparatus testing."*