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Toshiba S2E21 Product Manual

Toshiba motor protection relay product manual
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TOSHIBA
MOTOR PROTECTION RELAY
MODEL
S2E21

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Table of Contents
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  Summary of Contents for Toshiba S2E21

  • Page 1 TOSHIBA MOTOR PROTECTION RELAY S2E21 MODEL...
  • 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. TEMPERATURE SIMILATION FOR OVERLOAD...
  • Page 3 APPLICATION START Full load Over load Allowable rise Permissible I - - rise (9s) Rated temperature rise Ambient (temperature) Relay Trip - - - PRE-ALARM LEVEL _________ Time t...
  • Page 4: Operation

    Simple, straightforward operation . Standard relay is drawout construction . CT connections are shorted automatically when relay is drawn out. Memory card is included as a standard accessory. 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...
  • Page 5 Day and number starts of starts day maximum starts (highest 3 days) Trip data Data display at trip Current trend Current value display 1 to 10 sec . before trip Machine ID MACH Individual code of S2E21 or motor Date/Time DATE and TIME...
  • Page 6 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 constant, and the motor cooling time con- stant.
  • Page 7 Function Overload Instantaneous Over current Overcurrent Phase unbalance PROTECTION Under current Ground fault Locked rotor Repeated start External fault input Overload Curve Examples 10,000 1,000 ~~/~IIIII~~~111111~~~~11111~~~111111 1 ~1 N11 1I 111110111 a WE! . lm ~~~IIIIII~~~IIIIII~~miIIIIMIIIII Units --~ Multiples of Current (Times) Overload Curve Examples Curve Heating time...
  • Page 8: Set Point List

    Alarm, reset level Output configuration Analog output Auto-learning ORDERING INFORMATION Description Order Code S2E21 - C1 A Motor protection relay S2E21 - ClAA Motor protection relay S2E21 - C1 AB Motor protection relay S2E21 - C1 AC Motor protection relay...
  • Page 9: Monitor System

    TOSHIBA'S monitor system can be used to plan and implement a motor maintenance program . MONITOR SYSTEM Easy operation . All items are selected from the menu . MAIN MENU MONITOR SYSTEM Relay selection Set point Information History Trip curves...
  • Page 10 161 (6 .339) (1 .417) DIMENSIONS IN MM (INCHES) 'W's 4% [tStDUEx ro mxxER oixECrLr m sExt xEUr DIMENSIONS External Dimensions of S2E21-C1A [ ] (with DG) 267 (10.512) 4 - o 6 (0.236) hales t0 N 295 (11 .614) (1 .024) CONNECTION <...
  • Page 11 NOTES...
  • Page 12 Pty. Ltd. : Sydney, Melbourne Toshiba International Company Limited : London " For further information, please contact your nearest Toshiba Representative . " The data given in this catalog are subject to change without notice . COPYRIGHT © 1997 TOSHIBA INTERNATIONAL COPORATION L-A-001-97 Printed in U .S .A .