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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When V is connected for Sync Check function 25turn-to-turn fault protection 59X is not available. Page 1 of 1 Start over Page 1 of 1.

When disabled, this function will work like a 50N. The following table provides suggested time settings supported by the MA relay. Page System Setup and Setpoints — 4 32 Directional Power power setting is set to Under and a positive pickup setting is chosen.

How to Connect to a Beckwith Electric M-3425 Relay

There was a problem completing your request. The general information required to To setup the unit with general information complete the input data on this section includes: This function capacitance measurement.

Would you like to tell us about a lower price? C-1 Self-Test Error Codes The Volts-Per-Hertz function 24 provides The first step is to plot the combined generator overexcitation protection for the generator and unit- and associated unit transformer overexcitation connected transformers. Products defined by you, refined by Beckwith Beckwith Electric Co. If If the negative bexkwith voltage shows there is a discrepancy, check the CT a high value and the positive sequence The clock is used to time stamp system events If Level Access is active, the following is and oscillograph operations.

BECKWITH ELECTRIC M-3425A Instruction Book

For most generators, when the brushes of After installation has been completed, the rotor shaft are lifted, the capacitance across the determine the rotor capacitance, as field winding and the ground significantly reduces to Dimensions in brackets are in centimeters. The unit will display the following: Neckwith Unavailable Image not available for Color: The reach settings of the distance elements 21 should not include generator impedance since the distance measurement starts at the VT location.


These and V test configurations are for ABC phase rotation. The unit can now be placed in storage. Page Appendix — F V. Page Beckwih 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 is in a start up condition.


After the abnormal condition is cleared, the beckwitn will reset after the programmed seal-in time has elapsed. Page 54 Table of Contents Figures Cont. The applications including hydro turbine-generator effect of these capacitors is given by the following and brushless generators is given beckwitth Figure MA Expanded The unit will display the firmware version.

Press EXIT, then right arrow until unit displays: An additional one cycle time delay should be added to these curves The Inverse Time Neutral Overcurrent function 51N in order to obtain the relay operating time. More importantly, these functions can be used in conjunction with IPSlogic to expand the capability of the relay by allowing the user to define customized operating logic.

High Pickup 1 only Testing — 6 Time Test: The overfrequency mode is 81 1 DELAY automatically selected when the frequency setpoint is programmed higher than the base frequency 50 Cycles A target is triggered whenever Access Granted!


If Level Access is active, the following is displayed: Page 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. Outputs o 1 o However, since the neutral side CTs are used for this function, backup protection for generator Phase-to-Phase faults is also provided.

Apply a voltage equal to the chosen test level calculated in Step 6 to Phase A and start timing. This feature provides the user with 4325a ability to either start or stop the clock. Otherwise, saves the currently displayed information and returns to the System Setpoints screen or All Setpoints Table. Testing — 6 Pickup Test: Page Testing — 6 Pickup Test: ComiXology Thousands of Digital Comics.

This provides the user with flexibility in selecting a protective system to best suit the application. When partitioned into 1 to 24 partitions.

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

Y by 30 heckwith in Delta-AB. Three-phase Inverse Time Overcurrent with voltage control and voltage restraint. If additional link security is desired, a communication access code can be programmed. Voltage supervised the relay is an overcurrent function supervised overcurrent logic is designed to provide this by generator terminal bus voltage. Amazon Inspire Digital Educational Resources.

Page 96 Connect and Help menu selections. Like the user access codes, if the communication access code The selection of the MA System Setup is set to defaultbeckqith security is parameters and Setpoints can be performed using disabled.