Application Guide M-2299 Adapter Panel
CONTROLS Adapter Panel M-2299 Adapts M-2001 Series Digital Tapchanger Control to Replace Toshiba TB-R800 Regulators • Connects easily to the M-2001 Series Digital Tapchanger Control using mounting screws and 24-pin connector • Provides direct mechanical replacement of the existing regulator control • Provides built-in CT shorting protection when the M-2001 Series Digital Tapchanger Control is removed
The M-2299 is an adapter panel which, when combined with the M-2001 Series Digital Tapchanger Control, provides convenient direct replacement of Toshiba TB-R800 regulators. The M-2299 mounts into the control cabinet using the same two hinge pins which must be saved from the original regulator. Interface External connections are made via a wiring harness that connects from a fifteen-position terminal block to the ”BT” terminal block on the existing control cabinet.
WARNING DANGEROUS VOLTAGES, capable of causing death or serious injury, are present on the external terminals and inside the equipment. Use extreme caution and follow all safety rules when handling, testing or adjusting the equipment. However, these internal voltage levels are no greater than the voltages applied to the external terminals. DANGER! HIGH VOLTAGE – This sign warns that the area is connected to a dangerous high voltage, and you must never touch it.
PRODUCT CAUTIONS Before attempting any test, calibration, or maintenance procedure, personnel must be completely familiar with the particular circuitry of this unit, and have an adequate understanding of field effect devices. If a component is found to be defective, always follow replacement procedures carefully to that assure safety features are maintained. Always replace components with those of equal or better quality as shown in the Parts List of the Instruction Book.
TABLE OF CONTENTS M-2299 Adapter Panel Application Guide 1.0 Description ................................................................................................................... 1 Standard Features ....................................................................................................... 1 2.0 Installation .................................................................................................................... 2 2.1 Removal of the Toshiba Regulator ..................
5.0 Test Procedures ........................................................................................................ Equipment Required .................................................................................................. Setup Procedure ........................................................................................................ Table 2 Initial Settings ............................................................................................ 5.1 Bench Test ............
M-2299 Application Guide The Beckwith Electric M-2299 Adapter Panel, used in conjunction with the M-2001 Series Digital Tapchanger Control, uses modern electronic digital design and digital processing circuitry to achieve an overall stability and resolution unattainable with electromechanical and analog design tapchanger controls. CMOS semiconductors are used throughout the design. 4.
M-2299 Application Guide 2.0 4. Installation The M-2299 has hinges on the right side that allow easy mounting into the existing Toshiba regulator cabinet. Refer to Figure 1, below. Remove and save the two hinge pins and lift the Toshiba control panel off of the hinges. NOTE: The two hinge pins must be saved from the original control. 5. Remove all control side wiring harness connections from the BT1 terminal block. Removal of the Toshiba Regulator 6.
M-2299 Application Guide 2.2 Installation of the M-2001 Series Digital Tapchanger Control 2.3 Installation of the M-2299 Refer to Figure 2, below. Mount the M-2001 Tapchanger Control to the back of the M-2299 Adapter Panel and secure with the four screws provided. The four screws are shipped in a drawstring bag which is attached to the adapter panel. 1.
M-2299 Application Guide 9.17 [23.29] NEUTRAL LIGHT INT VOLTAGE SOURCE OFF EXT RAISE OFF U RA IS E LOWER UP D OFF LOW ER E AUTO REV PW R ENTER OK COM 2 DOWN MANUAL M - 20 0 1B VOLTAGE IN 12.00 [30.48] METER OUT FUSE TEST TERMINAL 3 AMP FUSE VOLTAGE .25 AMP M-2299 TAPCHANGER CONTROL FUSE BECKWIT H EL ECT RIC MOTOR POWER 6 AMP NOTE: Values in brackets are in centimeters. Figure 3 Mounting Dimensions –4– CO. INC .
M-2299 Application Guide ELECTRIC CO. INC. BECKWITH TB1 J6 P-1778 BE# 450-00200 REV.
M-2299 Application Guide 2.4 Lightning Protection 3.0 It has been determined that transient voltages in excess of 1500 V ac rms can exist on the “ground” lead normally tied to TB1-8 on the printed circuit board. In the Tapchanger Controls, these voltages are suppressed by varistors which still permit the unit to pass a 1500 V ac Hi Pot test for one minute with a leakage current of approximately 15 mA, all terminals to ground.
M-2299 Application Guide M-2001 TAPCHANGER CONTROL FUNCTIONS TB1 M-2299 ADAPTER PANEL FUNCTIONS 1 6 POLARITY CONTACT VOLTAGE REDUCTION STEP #2 CONTACT 2 8 RESISTOR NETWORK WIPER 4 7 POSITION RESISTOR 5 2 6 3 3 MOTOR VOLTAGE REDUCTION STEP #1 CONTACT MANUAL RAISE OFF (MOM) 7 L R MANUAL LOWER 8 MANUAL MOTOR POWER FUSE (6 A) INT OFF OFF EXT VOLTAGE IN FUSE (1/4 A) NEUTRAL LIGHT AUTO TO CONTROL 1 NEUTRAL 9 9 11 10 10 11 5 12 N/U 13 4 14 12 15 1 MOTOR POWER 20, 21 o
M-2299 Application Guide 3.1 Multi-Step Voltage Reduction On the M-2299, TB1-2 and TB1-7 on the printed circuit board are used together to provide up to three levels of voltage reduction. The external connections to achieve these steps are shown in Table 1, below, and Figure 5, M-2001 and M-2299 Typical Connections. (Voltage reduction amounts are set within the M-2001 Tapchanger Control software.) Features Neutral Light Circuit The M-2299 is prepared for use with regulators which use a neutral light.
M-2299 Application Guide 3.2 Typical Connections for Toshiba Regulators 3.3 In general, the tapchanger motor must be operated from a different transformer than the VT used to measure regulated voltage. If this is not done, hunting at the upper band edge may result. As soon as the motor starts and before it is sealed in, the motor current can drop the voltage within the band and reset the control. Some motor seal-in schemes are fast enough to prevent this, but others are not.
M-2299 Application Guide 4.0 M-2001 Tapchanger Control Software Settings 5.0 Equipment Required • 0–200 mA current supply with phase angle settings of 0° to +90° Adjust the BANDCENTER setting to the nominal voltage desired. Adjust the BANDWIDTH setting to the desired voltage band, centered on the Bandcenter setpoint, that the voltage must exceed before timer and subsequent tapchanger operation occurs. Adjust the TIME DELAY setpoint to a sufficient amount to eliminate excessive tapchanger operations.
M-2299 Application Guide 5.1 Voltage Source Switch 1. Set AUTO/OFF/MANUAL switch to OFF. Bench Test NOTE: This test assumes that the M-2001 Tapchanger Control is connected to the M-2299 Adapter Panel. 2. Set VOLTAGE SOURCE switch to EXT. 3. Verify no manual Raise or Lower output. 4. Attach voltmeter to Meter Out terminals. 1. Apply 120.0 V ac from power source. 5. Verify no voltage is present. 2. The display of the M-2001 will automatically advance to Local Voltage screen. 6.
ILoad Tap Position Figure 7 Polarity Contact Neutral Light Regulated Voltage Motor Power Neutral Voltage Reduction Step #1 Input Tapchanger Lower Output Tapchanger Raise Output Position Resistor Resistor Network Wiper Voltage Reduction Step #2 Input –12– M-2299 Test Procedure External Connection 19 18 17 16 27 TB2 15 14 13 Auto Disable Local/Remote Jumpers in place for motor power continuity.
M-2299 Application Guide 5.2 M-2001 Checkout Procedure 6.0 NOTE: This test of the M-2001 assumes that the unit remains connected to the adapter panel. NOTE: All Beckwith Electric units are fully calibrated at the factory. There is no need to re-calibrate the units before initial installation. Basic Operational Test 1. Apply 120.0 V ac to TB1-9 (motor power) and TB1-10 regulated voltage) of adapter panel. 2. Connect neutral to TB1-8 (neutral). 3. Verify local voltage y input voltage ±0.3 V. 4. 5.
M-2299 Application Guide 3. Apply motor power to TB1-9 (hot) and TB1-8 (neutral). Set the AUTO/OFF/ MANUAL switch to MANUAL and using the RAISE/OFF/LOWER switch, verify that the motor runs in the proper direction when this switch is in the RAISE and LOWER positions. 4. Set the AUTO/OFF/MANUAL switch to the AUTO position. Refer to the Field Checkout Procedure as found in the Status & Setpoint Review Guide of the M-2001 Tapchanger Control Instruction Book for test/operation procedures. 5. 6.
M-2299 Application Guide 6.2 Voltage Source Switch 7.0 The VOLTAGE SOURCE switch will disconnect all power from the unit when in the EXT position with no source connected to the front panel voltage and motor power inputs. Maintenance Due to the nature of the circuitry in the M-2001 Tapchanger Control, field repair is not recommended. All units are fully calibrated at the factory prior to shipment; there is no need to recalibrate a unit prior to initial installation.
M-2299 Application Guide This Page Left Intentionally Blank –16–
Legal Information Patent The units described in this manual are covered by U.S. Patents, with other patents pending.
IS O te re 90 0 d 0 00 2 1: g Re is BECKWITH ELECTRIC CO., INC. 6190 - 118th Avenue North • Largo, Florida 33773-3724 U.S.A. PHONE (727) 544-2326 • FAX (727) 546-0121 E-MAIL marketing@beckwithelectric.com WEB PAGE www.beckwithelectric.com © 2001 Beckwith Electric Co.
