TOSHIBA MOTOR PROTECTION RELAY MODEL S2E21
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. 4. TEMPERATURE SIMILATION FOR OVERLOAD MAINTENANCE DATA Every motor application is protected by temperature similation used for overload protection .
APPLICATION START Full load Over load II Allowable rise Permissible rise (9s) Rated temperature rise Ambient (temperature) II II I I 11 1 1 I Relay Trip I -- --- PRE-ALARM LEVEL - - _________ Time t
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.
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 points are protected by PASSWORD ID security feature. Settings may be viewed, but not changed, except by personnel authorized with the correct password.
PROTECTION Overload protection, locked rotor protection, and repeat start protection are accomplished by a scientific 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 constant. These values are constantly monitored by the relay and compared to the set trip points .
Function Description Overload Rated curren : Heat time constant : Cooling time constant : Allowable temperature rise of stator : Operating current: Operating time : Operating current: Operating time t : Operating current: (Minimum) Unbalance ratio: Operating time : Operating current: Operating time : Operating current: Operating time : 2A - 2000A 10 - 165 Min . 10 - 500 Min. 60 - 125°C 5 - 17 x Rated current ± 15% 50ms or less 1 .5 - 10 x Rated current ± 5%0.3 - 1 Sec. 0 .
SET POINT LIST Set Point Value Factory Set Point CT ZCT IN TR 5 - 2000 A 50 - 100 A 40-100% 10 - 165 MIN 5A 50A 40% 10 MIN P21 P21 TD 6SM 10 - 500 MIN 60 - 125 DEG (RISE) 10 MIN 60 C P21 P22 P22 P22 P23 P23 P23 P24 P24 P25 9SN I INST IOC TOC UB IUC TUC IOCG TOCG TSC 10 - 125 DEG RISE 5 - 17 x IN 1 .5 - 10 x IN 0.3 - 1 SEC 5-30% 30 - 80% x IN 1 - 5 SEC 5 - 40% x ZCT 0.1 - 1 .5 SEC 1 - 130 SEC 50 C 0 OFF 0 OFF 0 .3 SEC 0 OFF 0(OFF) P25 P25 P26 IST TST - 1 .5 - 15 x IN 1 - 60 SEC Slave No .
MONITOR SYSTEM TOSHIBA'S monitor system can be used to plan and implement a motor maintenance program . MONITOR SYSTEM R w PC : J3100, T3100 CONVERTER: ADP-6237B Bon Bo~ Boom Boom Boom MEMORY CARD : MCA5101BAA READER/WRITER : MZA5001AAA Easy operation . All items are selected from the menu .
DIMENSIONS External Dimensions of S2E21-C1 A* (without DG) 89 (3 .50) IR 4 - o 6 (0 .236) holes 4 - o 6 (0.236) hales External Dimensions of S2E21-C1A [ ] (with DG) 267 (10.512) 4 - o 6 (0.236) holes 4 - e 6 (0 .236) holes 171- CUTOUT DETAIL CUTOUT DETAIL ao t0 N N N N 07 O N N J 36 161 (6 .339) 26 UD O f0 N N N Of O N N 295 (11 .614) (1 .417) (1 .024) DIMENSIONS IN MM (INCHES) (1 .024) (1 .
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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 .
