Load resistor FY-H CT

The FY-H CT Current Transformer Load Box supplies configurable load burdens for testing current transformers (CT) and potential transformers (PT). Designed as a supporting accessory for transformer verification equipment, it offers multiple load types, a wide rated-burden range and a compact, lightweight enclosure.

Application

• Support for verification and routine testing of CTs and PTs in laboratories, workshops and on-site commissioning.

Key features

• Multiple load types with broad rated burden range (COS0.8 and COS1.0)
• Compact, lightweight housing (approx. 8 kg)
• Stable output suitable for accurate transformer testing
• Secondary current standard 5 A (customizable)

Technical specifications

• Ambient conditions — Temperature: 15–25 ℃
• Humidity: <80% (25 ℃)
• Altitude: <1500 m
• Power frequency: 50 Hz
• Rated burden: COS0.8: 2.5 VA – 60 VA; COS1.0: 2.5 VA – 20 VA
• Current range: 1% – 120%
• Secondary current: 5 A (can be customized)
• Power factor: 0.8, 1.0
• Accuracy: ±3% and ±0.0025 VA
• Test voltage (dielectric): 2 kV
• Overall dimensions: 250 × 350 × 175 mm
• Weight: 8 kg

Nicknames

• Current Transformer Load Box
• CT Load Box

Documentation & visuals

• Product images, dimensional drawings and datasheet available on the product page; contact supplier for customization and technical support.