Shaft grounding devices minimize shaft voltage and prevent current damage. Shaft voltage can happen due to leakage, induction, or frictional buildup in other parts of an electrical system. Shaft groundings stop the energy from causing harm to vulnerable motor parts.These devices redirect electrical current away from sensitive motor parts with weaker resistances—such as motor bearings—and provide a better route to the ground.
Our company mainly produces shaft grounding devices for large motors, and can also be customized according to customer requirements.
Benefits of Shaft Grounding Systems
Shaft grounding systems should protect vulnerable systems from bearing damage. This damage can occur when Variable Frequency Drives (VFD) used in AC or DC motors generate electrical currents on the motor shafts. This can also happen with PWM drives used in DC motors.
Electrical current always moves through the least resistant path until it is grounded. In most motors, bearings offer the lowest level of resistance and the current arcs across them, creating fluting, pitting, or other types of bearing damage.Once motor bearings are damaged, they lose a significant portion of their functionality—bearings with rough surfaces can’t perform as well as bearings with smooth surfaces. The motors and connected equipment may suffer from excess vibrations and noise from the rough bearings. This may cause the equipment to eventually fail, which results in costly motor downtime, repairs, and delays.
Adding a shaft grounding system gives the electrical current a more ideal path to reach the ground without damaging internal motor components. The shaft grounding device will lead current away from the motor bearings and allow the electricity to leave the motor in a controlled fashion. Shaft grounding systems keep equipment safe and save companies money in terms of parts replacements and lost time.
Using a shaft grounding device facilitates long-term equipment performance. These devices are simple to install in nearly all commercial and industrial equipment with motors.
Shaft Grounding Devices Applications
Motors in every industry need protection systems that divert harmful electrical currents away from vulnerable system areas. Common applications for shaft grounding devices include:
● Air handling systems
● Chillers
● Compressors
● Conveyors
● Data centers
● Elevators
● Fans
● HVAC units
● Propulsion systems
● Pump motors
● Wind pitch motors
Contact
Add：9 Mianfang Road, Dongguang County, Hebei Province
Tel：0317-7669917
Fax：0317-7669917
Phone：13785790327（Manager Wei）
16630826266（Manager Wei）
E-mail：frank@sinohuayuan.com
Zip code：061600
Scan and watch us
SINO HUAYUAN (CANGZHOU) ELECTRIC MACHINE CO.,LTD.