Beckwith Electric M-2279D Adapter Panel

Adapts M‑2001 Series Digital Tapchanger Control for Surface Mounting

Applications

• Connects easily to the M‑2001Series Digital Tapchanger Control using

four mounting screws and 24‑pin connector

• Provides mounting adaptable to several different configurations

• Provides built‑in CT shorting protection when the M‑2001 Series Digital

Tapchanger Control is removed

The M‑2053 is an adapter panel which permits M‑2001 Series Digital

Tapchanger Controls to be surface‑mounted while providing access points

for wire terminations.

Interface

External connections are made to a terminal block located on the rear of

the adapter panel.

Testing Specifications

High Voltage: All input and output terminals will withstand 1500 Vac rms to

chassis or instrument ground for one minute with a leakage current not to

exceed 25 mA, for all terminals to ground. Input and output circuits are

electrically isolated from each other, from other circuits and from ground.

Surge Withstand Capability: All input and output circuits are protected against

system transients. Units pass all requirements of ANSI/IEEE C.37.90.1-1989

defining surge withstand capability.

Radiated Electromagnetic Withstand Capability: All units are protected against

electromagnetic radiated interference from portable communications transceivers

as outlined in ANSI/IEEE C37.90.2-1987 defining radiated electromagnetic 

withstand capability.

• M-2948 Tap Position Sensor directly mechanically replaces the Selsyn-Type Tap

Position Sensor.

• Directly interfaces with a 4 to 20 mA output to the M-2025D Current Loop Interface

which provides the tap position to the M-2001 Series Tapchanger Control.

• Rotation – 0 to 210°, 297°, 306°, 315°, 325°, 330°, 340° and 350° configurations

• Degrees per Tap – 9° or 10°

• Neutrals – 1, 2, 3, 5 or 6

• Rotation Direction – Tap Position Sensors are available with either a positive

or negative rotation. With positive rotation, the shaft of the M-2948 rotates

clockwise while raising taps. With negative rotation, the shaft of the

M-2948 rotates counter-clockwise while raising taps.

Integrated Protection System® for Generators of All Sizes

Expanded I/O (15 additional Output contacts and 8 additional control/status Inputs).

• Exceeds IEEE C37.102 and Standard 242 requirements for generator protection

• Protects generators of any prime mover, grounding and connection type

• Provides all major protective functions for generator protection including

Out‑of‑Step (78), Split‑Phase Differential (50DT), Under Frequency Time

Accumulation (81A), Inadvertent Energizing (50/27) and Turn‑to‑Turn Fault (59X)

• Expanded IPScom® Communications Software provides simple and logical setting

and programming, including logic schemes

• Simple application with Base and Comprehensive protection packages

• Load encroachment blinders and power swing blocking for system backup

protection (21) to enhance security during system abnormal conditions

• Options: Ethernet Connection, Field Ground/Brush Lift‑Off Protection

(64F/B), 100% Stator Ground Fault Protection by low frequency

injection (64S) and Expanded I/O (15 additional Output Contacts

and 8 additional Control/Status Inputs)

The M‑2069 Adapter Panel, when combined with the M‑2001C or M-2001D

Digital Tapchanger Control, offers convenient, direct replacement of

Westinghouse SVC or SVR controls and Beckwith Electric M‑0067E controls

or M-2067B adapter panels.

The M‑2069-M-2001D combination can also be used as a general purpose

LTC transformer control.

The M‑2069 enables changing of the M‑2001 control without adapter panel

removal or rewiring.

• Connects easily to the M‑2001 Series Digital Tapchanger Control using four

mounting screws and 24-pin connector

• Provides mounting adaptable to several different configurations

• Provides built-in CT shorting protection when the M‑2001 Series Tapchanger

Control is removed

• SCADA Cutout (Local/Remote) switch allows Local Blocking of SCADA commands

(for use with SCADA enabled M-2001C and D controls)

• Convenient Auto/Off/Manual and Raise/Lower Switches for toggling between

Automatic mode and Manual (local) mode to adjust the tapchanger position from

the front panel The M‑2069 is an adapter panel which, when combined with the

M‑2001C or M‑2001D Digital Tapchanger Control, provides convenient direct

replacement for Westinghouse SVC and SVR controls and Beckwith Electric

M‑0067E controls.