The potentiometer is factory set to give a ramp time of three seconds, which is considered to be suitable for most applications. Self excited automatic voltage regulator use for reference purpose only and not a genuine newage product. Stamford avr as440 manual dexterity fertility view. Catavr caterpillar avr kasr10 stamford replacement lx342 stamford replacement lx4v2 avk, eme r260,274,280,290 ti7. Voltage regulator stamford avr mx3212 generator parts from stamford spare parts for marine generators heino winter group. The mx321 avr is 3 phase rms sensed with a voltage regulation of 0. Regulator compatible with newage mx321, stamford mx321, e000 23212, onan. All stamford generators are supplied with a declaration of. We will meet or beat the competition when possible. This avr features a linear volts hz slope down to 18hz, and. A wiring diagram is a streamlined standard photographic depiction of an electric circuit. As an added benefit the regulator enables quadrature droop. E000234121p mx341 oem stamford voltage regulator this is a new genuine stamford mx341 avr.
Regulator compatible with newage mx321, stamford mx321, e00023212, onan. Newage stamford mx321 mx321 is a three phase sensed automatic voltage regulator and forms part of the excitation system for a brushless generator. Avr conversion instructions fitting as440 avr in place. Mx341 is a two phase sensed automatic voltage regulator and forms part of the excitation system for a brushless generator. Mx342 automatic voltage regulator avr general power limited. Notice readjust the voltage level if necessary see section 3. Newage mx321 avr, replacement same fit form and function as the original. Same fit form and function as the original newage mx321. This regulator allows 3 phase sensing which is constantly sensing the voltages across all 3 lines vs just 2 lines like on other standard avrs. Mx321 automatic voltage regulator avr for cummins 1250kva generators. It reveals the elements of the circuit as streamlined forms, as well as the power and signal connections in between the tools. Excitation power is derived from a threephase permanent magnet generator pmg, to isolate the avr control circuits from the effects of nonlinear loads and to reduce radio frequency interference on the generator terminals. Excitation power is derived from a threephase permanent magnet generator pmg, to isolate the avr control circuits from the effects of nonlinear. The stamford pi range of synchronous ac generators are brushless with a.
These units are installed as a standard from factory on alternator ends hc6 and p7 stamford frames. Stamford ma330 automatic voltage regulator, english, pmgexcited avr. Stamford mx321 automatic voltage regulator stamford avk. Used to stabilize the generators voltage as the load changes, the mx321 offers numerous benefits for absolute voltage monitoring and regulation. Mx321 is a three phase sensed automatic voltage regulator and forms part of the excitation system for a brushless generator. Avr adjustments 20 under frequency roll off ufro 21 exc trip excitation trip 21 transient load switching 21 dip. The stamford avr mx321 is one of the most advanced avrs stamford has on offer. Synchronics provides expert electronic repairs for stamford england,avr mx3212. An over voltage protection circuit will shutdown the output device of the avr, it can also trip an optional excitation circuit breaker if required. The mx321 allows 3 phase sensing, short circuit limiter, over voltage adjustment and dwell used when the alternator is coupled to a turbo charged engine with a limited block load acceptance. The avr provides closed loop control by sensing the alternator output voltage at the main stator windings and adjusting the exciter stator field strength.
Regulator avr and forms part of the excitation system for a. Avr manuals are available to download in pdf format. Description the stamford dual avr unit dau has two mx321 avrs arranged for manual switching. The ufro circuit has adjustable slope and dwell for controlled recovery from step loads. Compatible with newage mx321, stamford mx321, e00023212, onan 3050823. The pmg provides power via the avr to the main exciter, giving a source of constant excitation power independent of generator output. Excitation power is derived from a threephase permanent magnet generator pmg, to isolate the avr control circuits from the effects of non linear loads and to. Order from general powers large stock and industryleading lead times which is weeks quicker than the competition.
Sx460 automatic voltage regulator avr specification, installation and adjustments general description technical specification sx460 is a halfwave phasecontrolled thyristor type automatic voltage regulator avr and forms part of the excitation system for a brushless generator. Sx440 automatic voltage regulator avr specification, installation and adjustments general description technical specification sx440 is a halfwave phasecontrolled thyristor type automatic voltage regulator avr and forms part of the excitation system for. We recommend threephase sensing for applications with greatly unbalanced or highly nonlinear loads. At synchronics we have the experience in repairing stamford england,avr mx3212 in a timely and cost effective manner. Mx321 automatic voltage regulator avr specification, controls and accessories english original instructions a043y701 issue 2. Mx321 avr the most sophisticated of all our avrs combines all the features of the mx341 with, additionally, threephase rms sensing, for improved regulation and performance. Adjust the avr stab control a further 5% clockwise. Stamford mx321 automatic voltage regulator, english, pmgexcited avr. The mx321 is a three phase, thyristor type automatic voltage regulator avr and forms part of the excitation system for a brushless generator. Cummins stamford has depended on this avr board over the years to assist in critical applications where voltage regulation and stability is key. Replacing a stamford mx321 by basler electric decs100. Newage mx 321 automatic voltage regulator americas generators. If you would like to replace an aging stamford mx321 avr by the basler digital avr decs100, please read the instructions in this post.
The maxiavr mx321 is a threephase sensed automatic voltage regulator and forms part of the excitation system for a brushless generator. Mx321 avr standard this sophisticated automatic voltage regulator avr is incorporated into the stamford permanent magnet generator pmg system and is fitted as standard to generators of this type. Stamford mx321 2 is one of the most advanced regulators stamford has to offer. The stamford mx321 is a three phase sensed automatic voltage regulator and. Mx321 avr stamford voltage regulator general power.
Avr mx3212 by stamford england repair at synchronics. If an avr fails, regulation can be switched to the other avr, so that the generator set can continue to run until a planned controlled shutdown to replace the faulty avr. Abb pmg generator avr troubleshooting manual study. Official reseller of stamford alternator spare parts. Mx321 automatic voltage regulator avr specification, installation and adjustments general description mx321 is a three phase sensed automatic voltage regulator and forms part of the excitation system for a brushless generator. Mx3412 regulator is one of the 2 mx series used in the stamford line of automatic voltage regulators. Stamford avr as440 manual dexterity as440 avr wiring diagram pdf. We provide free quote for stamford england,avr mx3212 sent to. In addition to regulating the generator voltage, the avr. Stamford brushless ac generators are available with a choice of sae adaptors to sudden loads applied to the generator, hence the excitation remains at full strength, providing superior. It includes numerous of beneficial features for absolute voltage regulation and monitoring. Excitation power is derived from a threephase permanent magnet generator pmg, to isolate the avr control circuits from the effects of nonlinear loads and to reduce radio frequency interference on the generator.
The mx3212 automatic voltage regulator is used on larger stamford generator alternator ends. Mx341 mx3412 e00023410 e00023412 e000234121p automatic voltage regulator. Stamford permanent magnet generator pmg control system. In addition to being powered from the main stator, the avr also derives a sample voltage from the output windings for voltage control purposes. Mx321 automatic voltage regulator avr specification, installation and adjustments general description the mx321 is a three phase, thyristor type automatic voltage regulator avr and forms part of the excitation system for a brushless. The mx321 avr is a three phase sensed automatic voltage regulator and forms part of the excitation system for a brushless generator. Excitation power is derived from a threephase permanent magnet generator pmg, to isolate the avr control circuits. Adjust the avr stab control slowly clockwise until the voltage is stable.
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