Isolation transformer wiring diagram onan pmg. They do everything a regular isolation transformer does but require the addition of a galvanic isolator to prevent boat to boat galvanic corrosion increasing the cost somewhat. Generator china brushless alternator spare parts generator. The avr utilizes the extra power when supplying non linear loads such as. Incorrect setting of the avr may damage the generator or generating set.
A clean isolated uninterrupted 3 phase waveform is produced when the generator shaft is turning. Copper wire wire electromagnetic coil electrical cable wiring diagram wires free png size. Either of these systems will vastly increase electrical safety of those onboard and in the water. It would also trip an rcd if fitted.
Xinpoming onan 500kva step up outdoor transformers dyn11 factory in china. Since neutral and earth are bonded in the consumer unit the system sees this as a short circuit and so a large current will flow which will blow the fuse or trip a circuit breaker. Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2 l2 l3 gnd h1 h3 h2 h4 f u 3 x1a f u 4 f u 5 x2a r power on optional x1 x2115 v 230 v h1 h3 h2 h4 optional connection electrostatically shielded transformer f u 6 off on m l1 l2 1 2 stop ol m start 3 start start fiber optic transceiver class 9005 type ft fiber optic push button. Isolation transformer wiring diagram 45 kva transformer wiring diagram kva transformer wiring transformer wire diagram wiring diagrams schematics fancy.
When choosing an isolation transformer check the specs for the features included the ratings and how they are constructed. Connection diagram which is attached for each machine delivered by abb. Some experts feel these are even safer than isolation transformers because they retain the green shore power ground wire. 4 pmg field rotor 8 isolating transformer if fitted a043y701 issue 2 1 this page is intentionally blank.
Wrg 0912 isolation transformer wiring diagram onan avr. 170 vac to 220 vac maximum 3 phase 3 wire current. Some of the benefits of using generators equipped with the pmg excitation method. 50 hz to 60 hz nominal power input voltage.
The principle of pmg excitation system is shown in figure 2. 190 vac to 264 vac maximum 2 or 3 phase frequency. Make sure the personnel who do changes in the avr setting are technically qualified and go through the users manual. Principle of generator with pmg excitation system attention.
Pmg supplies isolated power to the avr when the generator shaft rotates. Click on the image to enlarge and then save it. 58872kb electronic circuit electronics printed circuit board tattoo wiring diagram electrical circuit free png size. Isolation transformers used for safety usually have a turns ratio of 11 with the number turns in the primary and secondary windings equal but step up and step down isolation transformers are used when the voltage also needs to be changed.