Spares / Alternators and Spares / Stamford AVK Alternators and Spares / Stamford AVRs and Spares
Stamford AVRs and Spares
Genuine OEM AVR Automatic Volltage Regulators, Control Modules and Rectifier Repair kits to suit Stamford and Newage Alternators.
Buying a genuine Genuine NEWAGE® | STAMFORD® AVRs ensures:
- Minimised risk of plant and equipment failure
- Maximised power supply security
- Matched performance capability to alternator ensuring stability and responsiveness
- A product that is tested to react in emergencies, triggering support protection systems
- 12 month warranty as standard
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Automatic Voltage Regulators (AVRs) are a vital component of your alternator.
To ensure the consistent operation and long-term lifespan of your alternator it is essential you buy genuine.
STAMFORD AVR SELECTION
STAMFORD Automatic Voltage Regulator (AVR) & Accessory Selection Tables.
The table below will indicate which AVR accessory is available for, or incorporated into each product range.
MX321 | MX341 | SX421 | SX460 | AS440 | AS480 | DM110 | |
|---|---|---|---|---|---|---|---|
P0/P1 | N | N | N | N | N | S | N |
UC22 | O | O | O | S | O | N | N |
UC27 | O | O | O | S | O | N | N |
HC4 | O | O | O | N | S | N | N |
HC5 | O | O | O | N | S | N | O |
HC6 | S | N | N | N | N | N | O |
P7 | O | S | N | N | N | N | O |
MV7 | S | N | N | N | N | N | N |
P80 | N | N | N | N | N | N | |
S = Standard | O = Option | N = Not available | |||||||
AVR Features | MX321 | MX341 | SX421 | SX 460 | AS440 | AS480 | DM110 |
|---|---|---|---|---|---|---|---|
Voltage Regulation | 0.5% | 1% | 0.5% | 1% | 1% | 1% | +/- 0.25% |
UL 1004 Compliant | No | Yes | No | Yes | Yes | Yes | Yes |
Three Phase Sensing | Yes | No | Yes | No | No | No | Yes |
Sensing | |||||||
Short Circuit Current Limiting | Yes | No | No | No | No | No | Yes* |
Under Frequency Protection | Yes | Yes | Yes | Yes | No | Yes | Yes |
Load Acceptance Feature UFRO | Yes | Yes | No | No | No | Yes | Yes |
Accessories | |||||||
Excitation circuit breaker** | Yes | No | Yes | No | No | No | No*** |
RFI suppressor kit | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Separate voltage trimmer | Yes | Yes | Yes | Yes | Yes | Yes | No**** |
Quadrature droop kit (3 phase) | Yes | Yes | Yes | No | Yes | Yes | Yes |
Power factor controller - PFC3 | Yes | Yes | Yes | No | Yes | No | Integrated into AVR |
Remote control interface | Yes | Yes | Yes | Yes | Yes | No | Integrated into AVR |
Excitation loss module | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Diode failure detector | Yes | Yes | Yes | No | Yes | Yes | Yes |
Alternator protection module | Yes | Yes | Yes | No | No | No | Yes |
Frequency detection module | Yes | Yes | Yes | No | No | No | Yes |
Dual AVR (manual change over) | Yes | No | Yes | No | No | No | No |
Manual voltage regulator | Yes | Yes | No | No | No | No | Integrated into AVR |
Line drop compensation | Yes | Yes | Yes | Yes | Yes | Yes | No |
* Achieved by excitation voltage limiting.
** The excitation circuit breaker supports the overvoltage protection on the MX321.
*** Terminal rail allows external 2 or 3 pole circuit breaker to be used which breaks 2 or 3 phases of the PMG.
Both functions are facilitated by the excitation circuit breaker on the SX421.
**** External voltage trimming is achieved using raise and lower switch contacts.
