Description
The ABB S-093H 3BHB030478R0309 phase module is an important component of ABB excitation system,dedicated to accurately measuring and feedback the voltage and current phase information of synchronous generators.As a key sensing element in ABB excitation control system,S-093H module can accurately detect the phase relationship between generator terminal voltage and excitation current,and transmit these key data to the excitation controller,such as UNITOL series AVR.The ABB S-093H phase module is crucial for achieving stable operation of generators,optimizing reactive power control,and ensuring the reliability of power systems.Through precise phase measurement,the excitation controller can dynamically adjust the excitation current according to the grid demand and generator operating status,thereby maintaining the generator terminal voltage within the set range and controlling the power factor or reactive power output of the generator.The ABB S-093H phase module plays a key role in the excitation control system of synchronous generators in the fields of power,industry,and ships due to its high precision,high reliability,and adaptability to various operating conditions.It is an important component to ensure the safe and stable operation of generators and the quality of the power grid.

S-093H 3BHB030478R0309 ABB
technical specifications
Product model:S-093H
Order number:3BHB030478R0309
manufacturer:ABB
Product type:Phase module
Applicable system:ABB excitation system
Measurement parameters:generator voltage phase,generator current phase
Main features and advantages
The ABB S-093H phase module is renowned for its precise measurement performance and high reliability.Its core advantage lies in the ability to accurately detect the phase of the generator terminal voltage and excitation current,providing critical feedback signals for the excitation controller.This precise phase information is crucial for achieving stable operation of the generator and optimizing reactive power control.The S-093H module is typically designed to have high precision and good linearity,providing reliable phase measurement results under various operating conditions.
High precision phase measurement:The S-093H module can accurately measure the phase relationship between generator voltage and current,providing precise input signals for the excitation controller.
High reliability design:As part of ABB excitation system,S-093H module adopts high-quality electronic components and robust structural design,which can operate reliably in various industrial environments.
Compatible with ABB excitation systems:The S-093H module is specifically designed for ABB excitation systems and can seamlessly integrate with automatic voltage regulators(AVRs)from series such as UNITOL.
application area
The ABB S-093H phase module is widely used in the excitation control system of various synchronous generators
Hydroelectric power plants:used to measure the voltage and current phases of hydroelectric generators,providing critical feedback for excitation control.
Thermal power plants:used for excitation control of steam turbine generators and gas turbine generators to ensure stable operation and reactive power regulation of the units.
Industrial self owned power station:provides accurate phase information for synchronous generators in factories to achieve voltage stability and power factor control.
Ship power system:used to measure the voltage and current phase of ship generator sets,ensuring the safe operation of ship power systems.
Synchronous motor excitation control:In some applications,S-093H can also be used for excitation control of synchronous motors,providing phase feedback.
Related products
The products related to ABB S-093H phase module include:
The UNITOL series AVR:ABB’s automatic voltage regulators,such as UNITOL 1000,UNITOL 6000,etc.,use the phase information provided by S-093H for excitation control.
ABB excitation system:including static excitation system(SES)and rotating excitation system(RES),S-093H is an important component of which.
Current Transformer(CT)and Voltage Transformer(VT):Used to provide current and voltage signals to the S-093H module.

S-093H 3BHB030478R0309 ABB
Installation and maintenance
Preparation before installation:Before installing the ABB S-093H phase module,please refer to the installation manual and wiring diagram of the ABB excitation system.Ensure that the installation environment meets the electrical and environmental requirements of the controller.Check if the S-093H module is intact and undamaged.According to the instructions in the manual,install the S-093H module in the appropriate position on the control cabinet and secure it using the provided installation components.Connect the input signal lines from the current transformer(CT)and voltage transformer(VT)correctly according to the wiring diagram,as well as the output signal lines to the excitation controller,to ensure correct and reliable wiring and avoid short circuits or open circuits.
Maintenance suggestion:ABB S-093H phase module usually requires lower maintenance.It is recommended to regularly check whether the wiring terminals of the module are loose and tighten them again.Keep the interior of the controller and control cabinet clean to avoid the accumulation of dust and dirt.Regularly check whether the input and output signals are normal.If the controller malfunctions,please contact ABB or an authorized repair service center in a timely manner for handling,avoid disassembling or repairing it yourself,and avoid causing greater damage.
Product Guarantee
ABB provides standard quality assurance for the S-093H phase module.During the specified warranty period,if any manufacturing defects occur in the S-093H module under normal use,free repair or replacement services will be provided.



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