Highlights:

• Pylon box for connection to the C.A 6472 earth and ground resistance tester, enabling ground resistance measurements on transmission towers with ground wire in operation and without interruption
• Quick and easy setup: place 4 flexible AmpFLEX current transformers around the tower legs to measure ground resistance
• All parameters in one measurement: total line impedance, tower ground resistance, resistance of each individual tower leg, chain conductor impedance via the ground wire
• 4 flexible AmpFLEX current transformers with 5 m loop length for measurements on towers of various designs

Description:

Extension for Ground Resistance Measurements on Transmission Towers

The C.A 6474 pylon box enhances the C.A 6472 ground tester, enabling accurate and efficient ground resistance measurements on transmission towers. This solution supports measurements during live operation without requiring the line to be de-energized.

Equipped with four flexible AmpFLEX current transformers (5 m loop length), it adapts seamlessly to different tower designs, facilitating the measurement of ground resistance at the tower legs, total line impedance, and ground wire connection quality.

Functions:

• Measurement of the total ground resistance of the tower
• Resistance measurement of individual tower legs
• Determination of the total line impedance
• Assessment of the ground wire connection quality
• Active measurements using current via the C.A 6472
• Passive measurements using stray voltages

Key Technical Data:

• Measurement range: 0.001 Ω to 99.99 kΩ
• Resolution: 0.001 Ω to 10 Ω
• Voltage range: 16 to 32 VRMS
• Frequency: 41 Hz to 5.018 Hz
• Ground resistance measurement with grounding rod: 0.01 Ω to 100 kΩ
• Protection rating: IP53
• Dimensions: 272 x 250 x 128 mm
• Weight: 3.2 kg