Excitation system calibration testing service

With a history of 15 years of operation in the field of hydroelectricity, S5T has a lot of experience in projects to replace and upgrade the excitation system and along with it is excitation system calibration testing service before installation commissioning. This is the solution that meets the requirements of the state, and at the same time provides the factory with a safe and effective process, helping to minimize risks before installing a new excitation system for the factory system.

What does S5T’s excitation system calibration testing service include?

• Collect data and parameters of the system and equipment, conduct an overall assessment, check the feasibility of the excitation system calibration experiment to meet the proposed technical requirements. plans to replace or upgrade hardware and software equipment in case of necessity.
• Activation and adjustment of PSS power stabilizer parameters: check, install, activate, adjust (if necessary) the parameters of PSS.
• Load shedding/reactive power experiment, determining the gain and time constant of the AVR.

• Test the step response when the transmitter is not connected to the grid, to evaluate the responsiveness of the AVR.

• Test the frequency response of the excitation system when the generator is off-grid to check the stability of the AVR.

• Test the frequency response of the excitation system when the generator is connected to the grid in the absence or activation of PSS to check the excitation system transfer function and the phase compensation of the PSS unit.

• Test the gain margin of the PSS to determine the optimal gain.
• Test the frequency response of the excitation system when the generator is connected to the grid without or with PSS enabled to check the ability of the PSS unit to suppress oscillations.
• Test the step response when the generator is connected to the grid to check the effect of PSS to suppress the oscillations of the generating set.

• Impulse test to check the generating set response to major faults on the system.

Instruments used when performing excitation system calibration testing services

• Test kit: create three-phase voltage current to test the measurement of the system.

• Oscilloscope: check the field current output wave.

• Sample resistance box: rotor earth fault protection test.
• Phase sequence meter: determines the rectifier bridge input phase order.
• Microhmmeter bridge: measure the contact resistance of the magnetic stamping machine.
• Megohmmeter: check insulation resistance.
• Multimeter: measure current, voltage, continuity.

Why should you choose S5T’s excitation system calibration testing service?

With many years of experience and capacity in the field of hydroelectricity, S5T has received the trust and appreciation of customers and partners in deploying excitation system calibration testing services. We are always confident to bring our customers the best solutions and services. In particular, performing testing services to calibrate the excitation system, S5T had the opportunity to carry out projects at various key projects such as:

• Procurement and replacement of excitation system of Unit H2 and associated services – Ba Ha River Power Plant.
• Replacing the excitation system of unit H2 of An Khe hydropower plant.
• Major repair of excitation system of unit H2 – Quang Tri hydropower plant.
• Provide excitation system and attached technical services for unit H1 – An Khe hydropower plant.

Besides, S5T also owns a professional staff, and the most advanced equipment. As a result, it is possible to support the project implementation well, ensuring efficiency and safety for the plant’s equipment.

For more detailed information on solutions and services related to the excitation system, please send an inquiry to the mailbox or contact us at the address below.

• Address: S5T Vietnam Technology and Solution Joint Stock Company.
• Lot B15, Duong Noi Resettlement Area, Duong Noi, Ha Dong, Hanoi.
• Tel: 0243 540 1858 – Fax: 0243 540 1859
• Email: info@s5t.com.vn