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Appendix: H0U-88B1G Optional Accessories
Power-line current transformer
The H0U-88B1G controller applies to the screw compressor system directly driven by
power-line. By using current transformer (CT), the controller can:
1. Detect the power-line current to the main motor or fan,
2. Monitor the working status of the motor
3. Implement short circuit, overload and lack phase protections of the motor.
4. Flexibly set protection operation parameters based on specific requirements of the
screw compressor system.
The CT can replace overload relay and helps to reduce the costs of the protection system
of screw compressor.
Currently, there are three CT models for the user to choose, which are used for fan current
detection and main motor current detection, respectively.
Purpose Model Rated
Primary
Current
Applied
Motor
Power
Current
Transformation
Ratio
Order No.
CT1 for
main
motor
CT-038 80-400A 55-160kW 4000: 1 13050003
CT-032 40-200A 11-55kW 2000: 1 13050002
CT2 for
fan
CT-033 20-80A 0.7-5.5kW 1000: 1 13050001
Appearance and dimension:
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