HI All,
I am working on a belt driven generator--150 kw, 4 pole, 600V/60Hz. We know this unit should be driven at 1800 RPM.
The drive sheave currently installed dictates that the generator only spins at 1650 RPM/54 Hz. It has worked this way for years. I have advised the customer on the...
Hello All,
I am a technician working for a dealer selling one of the leading generator brands. I've been tasked with performing a failure analysis on a unit that was overhauled and experienced a major failure shortly after start up. I know there are some folks on this forum who are very...
Hello, I am a generator technician working for a company that sells engine driven generators. I have very little knowledge or experience when it comes to VFDs.
A customer has two sites where the loads consist mostly of VFD driven 3 phase 480 volt motors, driving rock cutting machines. One...
I have a customer with a 100 kw 3 phase Stamford generator, and he wants to re-connect it for single phase 240/120V operation. I realize this will de-rate the available power output to 67% of rated kVA.
What I am not sure about is the connection drawing states that if 120V (L-N) is needed from...
I have an old Onan genset with a failed voltage regulator board. External SCRs driven by regulator are also defective. Rest of excitation system tests ok.
The existing regulator is a VR21, which is still available from the mfg however is very expensive relative to the value of the genset...
I am a technician in the on-site power generation industry. I do a lot of work in quarries, and every now and then I run into a crusher motor starting issue.
I understand that, as with any electrical installation, feeder cables from the generator to the mcc should be kept as short as...
We are attempting to connect a temporary generator in a standby application. Site is equipped with 3x 1100 kw, 600V diesel generators which parallel using woodward 2301A LSSC, and Cat VR3 regulators utilizing droop. Generator pitch is .8.
One unit is off line for repair--in its place we...
