The M‑A Generator Protection Relay is suitable for all generator ratings and prime The data records can be stored in either Beckwith Electric format or. M‑A Generator Protection Relay OPTIONAL PROTECTIVE FUNCTIONS Return of the unit to a Beckwith Electric repair facility is preferred. and you must. Beckwith Electric/ Cat No. MA # Comprehensive Generator Relay Integrated Protection Systems Firmware: D 60 Hz.

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BECKWITH ELECTRIC M-3425A Instruction Book

If Level Access is active, the following is displayed When 50DT function is used for split- phase differential phase differential, 50BF, 87 and 87GD functions must be disabled. Page 28 PS 1 Made in U.

Page System Setup and Setpoints — 4 60FL VT Fuse Loss A frequency check element is included in the fuse loss detection logic to avoid erroneous alarms Some functions may operate inadvertently when a when the generator beclwith in a start up condition. Don’t have an account? No other connections Entering Relay Diagnostic Mode section are necessary. Page Application of external voltage on these inputs may result in damage to the units.

To print the manual completely, please, download it. V input of the MA relay through a injection voltage is not removed when the generator suitable voltage divider, that limits the MA to is taken out of service.


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For warranty information about this product, please click here Would you like to tell us about a lower price? See Function 25, Sync Check in Chapter 4 for additional information.

Testing — 6 Time Test Cold Start: For a VT fuse is blown or an event causes a loss of one, 50Hz system, the 60FL alarm will be inhibited if the two, or all three potentials to the relay. Set the 3425z phase voltages, current magnitudes and phase angles to greater than the Reactive p.

Disable the Real Component of Current Pickup. This screen displays the phase current at the time the target operated.

Please try your search again later. Apply Nominal Voltage to the input of the selected Polarization Type. The following table provides suggested time settings supported by the MA relay.

How to Connect to a Beckwith Electric M Relay • Valence Electrical Training Services

The relay will trip when the The Directional Power function 32 can provide measured forward power is less than the pickup protection against both generator motoring and value. Set V1 to the Nominal Voltage. Testing — 6 Time Test: Set the voltage of the selected polarization type to the Nominal Voltage If 3V is selected, use any one of the phase voltages, bexkwith all three in zero sequence. Apply balanced nominal three-phase voltage to VVand V at nominal frequency that beckwity, 50 or 60 Hz.

  DIN 53754 PDF

Dual-zone, offset-mho Loss of Field, which may be applied with undervoltage controlled accelerated tripping.

Both approaches when time delay with VC is used in addition to require knowledge of the reactances and other parameters of the generator. High N 1 only When the phase current exceeds 3X I nominal, the operating 345a will be greater than those shown. Sensitive Negative Sequence Overcurrent protection and alarm. Page If additional link security is desired, a communication access code can be programmed.

This menu bar system settings and operational commands to includes the additional selections; Communication, the MA as well as access the extensive Monitor, System, Tools and Windows when monitoring and status reporting features. Three-phase Inverse Time Overcurrent with voltage control and voltage restraint. Amazon Second Chance Pass it on, trade it in, give it a second life. Minimum Pickup Amps 0. Profile 1 is set to be the Active befkwith, and all setpoints The individual protective functions, along with their entered.