![]() If your generator does not have under-voltage protection set, then the generator may continue to run, which could cause severe damage to your equipment. This loss of excitation will cause the voltage to fall suddenly at the generator and this loss of voltage should cause the generator to shut down on an under-voltage fault. If the AVR on your generator fails, then the generator will lose excitation. You can find the AVR you need at the find the AVR support page. Different AVR designs - what do they look like?ĪVR's all look remarkable similar - they vary a bit in size and colour, but seemingly all have similar features. The error signal is then used to adjust the field current by increasing or decreasing the current flow to an exciter stator, which in turn will lead to a lower or higher voltage at the main stator terminals. It controls output by sensing the voltage from the generator terminals and comparing it to a stable reference. SX460 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator(AVR) Input:Jumper selectable 95-132V ac or 190-264V ac Output:Max 90V dc at. ![]() It can be in the main control box of the generator, in the alternators terminal box or it could be (only on very small portable units usually) located under the alternators rear cover. ![]() Normally the generator AVR is located in one of three places. An example of such accessory would be a PMG or auxiliary winding. The model supplied will depend on the alternator and any accessories fitted to it, which may need a different AVR. The biggest manufacturers of alternators for diesel generators are Stamford AVK, Mecc Alte, Leroy Somer and more recently WEG. Normally in a generating set, the alternator manufacturer will supply an automatic voltage regulator with their AC alternator. Who provides the automatic voltage regulators? The AVR is part of the alternators excitation system. It will try and do this as the generator load or operating temperature changes. What is a Generator Automatic Voltage Regulator?Īn automatic voltage regulator (AVR) is a solid state electronic device for automatically maintaining generator output terminal voltage at a set value. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |