Recently Asked Questions
Can you use a MegAlert on motors powered by a variable frequency drive or solid state soft starter?
Yes, providing that an isolation contactor is installed to isolate the motor from the VFD or soft start. If there is not contactor in the system one can be provided with the MegAlert system. The older type auto transformer soft starters do not affect the MegAlert. (need more information, see Tech Notes under: Articles/Test/Tech)
Where is the MegAlert normally located in a typical circuit?
The MegAlert is connected to one of the phases, at the motor contactor or generator breaker and to the equipment ground and is generally mounted in or next to the motor control center or generator swtichgear. The medium voltage models need to have the MegAlert located in the H.V. compartment of the control cainet or in a separate enclsoure.
My motors run 24 hours a day. How can MegAlert benefit me?
Most equipment that operates 24 hours a day is critical and can not afford lengthy downtime, however, preventative maintenance testing is required. The MegAlert allows you to perform your PM test with the minimal amount of downtime and expense and can be done quickly during any normal interruption that may occur with that type of equipment. Manual testing would not be possible in this situation.
High Voltage Insulation Testers
MotorGuard and GenGuards are now available in high voltage designs. Following is information regarding our new High Voltage designs for protecting expensive 13-15KV motors and Generators. Contact us for additional information or for a quote.
GP500-Wind Generator GenGuard
Meg-Alert, Inc. has developed its newest model in the Meg-Alert product line that tests and protects the GENERATOR in a WIND TURBINE. The GP500-WG provides predictive and preventive maintenance for the electrical side of all Wind Generators . A wind energy producing company in northern California at Altamont Pass has tested the GP500-WG on their Wind Farms for over one year with very successful results. Meg-Alert has secured an order from the company for 805 units with over 300 already produced and in operation. Various other wind energy companies with great interest are currently conducting their own field tests.