Toshiba S2E21 manual

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Table of contents for the manual

  • Page 1

    TOSHIBA MOTOR PROTECTION RELAY MODEL S2E21[...]

  • Page 2

    MOTOR PROTECTION RELAY TOSHIBA MODEL S2E21 TOSHIBA'S motor protection relay, Model S2E21, is a total motor protection and monitoring package for all motor applications . It has all the protective features necessary, including a display of running event data . FEATURES 1 . TEMPERATURE SIMILATION FOR OVERLOAD  4 . MAINTENANCE DATA Every motor[...]

  • Page 3

    APPLICATION START Full load  Over load Relay Trip I - -  - - - PRE-ALARM LEVEL  - - _________ Time t II Allowable II rise II Permissible I I rise (9s) 11 Rated temperature 1 1 rise I Ambient (temperature)[...]

  • Page 4

    Running Monitor (red) Stop - Light is off Run - Light is on (steady) Starting - Light blinks in 1 second intervals Overload Detection Light blinks 3 times/second Error Indicator (red) Lighted when relay detects self-checking error OPERATION Simple, straightforward operation . Standard relay is drawout construction . CT connections are shorted autom[...]

  • Page 5

    LCD DISPLAY OPERATION Each information cell is assigned a separate page display . Selecting the page to view the desired display is performed by pressing `Page' and then either the page number or the Up or Down cursor key . Auto-shutoff feature . LCD display is turned off automatically if no new LCD screen is selected within 4 minutes . Set po[...]

  • Page 6

    PROTECTION Overload protection, locked rotor protection, and repeat start protection are accomplished by a scien- tific calculation performed by the relay, simulating real-world temperatures . The temperature simulation protection method calculates the rotor and stator heat rise based on measured line currents, the motor thermal heating time consta[...]

  • Page 7

    10,000 0 .1 0 .1 Overload Curve Examples 4 3 1 2 1 10 100 1,000 Units --~ Multiples of Current (Times) Overload Curve Examples 12 Time (sec) s Short-circuit, Overcurrent, and Undercurrent 1000 4 Overcurrent - m Short-Circuit 1111  1  1 1111111  1  1111 HI 0 .01 0 .1 1 10 100 1,000 Units Multiples of Current (Times) Unbalance Curve  G[...]

  • Page 8

    SET POINT LIST ORDERING INFORMATION Item Page Code Value Factory Set Point Set Point CT rating P20 CT 5 - 2000 A 5A ZCT rating P20 ZCT 50 - 100 A 50A Rated current P20 IN 40-100% 40% Heating time constant of stator P21 TR 10 - 165 MIN 10 MIN Cooling time constant of stator P21 TD 10 - 500 MIN 10 MIN Allowable stator temperature rise P21 6SM 60 - 12[...]

  • Page 9

    MONITOR SYSTEM TOSHIBA'S monitor system can be used to plan and implement a motor maintenance program . MONITOR SYSTEM w Bon Bo~ Boom Boom Boom R PC : J3100, T3100 CONVERTER : ADP-6237B MEMORY CARD : MCA5101BAA READER/WRITER : MZA5001AAA Easy operation . All items are selected from the menu . MAIN MENU Relay selection Protection 2 RTD 2 Set po[...]

  • Page 10

    DIMENSIONS External Dimensions of S2E21-C1 A* (without DG)  External Dimensions of S2E21-C1A [ ] (with DG) 89 (3 .50)  267 (10 .512) 4 - o 6 (0 .236) holes  4 - o 6 (0 .236) hales IR 171- N N N 07 N CUTOUT DETAIL J 36  161 (6 .339)  26 DIMENSIONS IN MM (INCHES) ao t0 N O N U D 295 (11 .614) N N Of N 4 - o 6 (0 .236) holes  4 - e 6[...]

  • Page 11

    NOTES[...]

  • Page 12

    TOSHIBA TOSHIBA INTERNATIONAL CORPORATION INDUSTRIAL DIVISION 13131 West Little York Rd ., Houston, Texas 77041 Tel : (713) 466-0277 Fax : (713) 466-8773 Telex : 762078 U .S . : 800-231-1412 CANADA : 800-872-2192 World Wide Web Http ://www .tic .toshiba .co m TOSHIBA CORPORATION 1-1, Shibaura 1-Chome, Minato-Ku, Tokyo, 105, Japan Telex : J22587 TOS[...]