Multilin 139 series, Instruction Manual

Page 1: ...lL MULJILIN 139 SERIES MOTOR PROTECTION RELAY INSTRUCTION MANUAL Click here to get to our homepage http www ge com indsys pm Courtesy of NationalSwitchgear com...

Page 2: ...ELAY U S PATENTS 4 224 651 4 241 336 CANADIAN PATENT 1 130 383 UK PATENT 2 008 345 B liil MUlJ ILIN DIVISION OF DERLAN MANUFACTURING INC 215 ANDERSON AVENUE MARKHAM ONTARIO CANADA L3P 4C7 905 294 6222...

Page 3: ...139 SERIES RELAY HORIZONTAL MOUNTING Courtesy of NationalSwitchgear com...

Page 4: ...Load Control 17 3 3 Unbalance Control 18 3 4 Start Timer 19 3 5 Undercurrent Control 20 UM 20 3 7 Emergency Restart 21 3 8 Run Curve Selection 21 3 9 Mechanical Jam Rapid Trip 22 3 10 Option Programmi...

Page 5: ...in Fault Finder 29 Secondary Injection Test Set Schematic 30 Relay Block Diagram 37 Relay Schematic BACK PAGE FOLD OUT Relay Component Locator BACK PAGE FOLD OUT LIST OF TABLES Table Trtle Page 1 1 Mu...

Page 6: ...d Fault Easy to Retrofit Over Temperature Field Testable Undercurrent CSA Approval 1 2 TYPICAL APPLICATIONS Versatile features and controls allow the relay to protect associated mechanical equipment a...

Page 7: ...ys are available for use with 1or5 amp current transformers CTs which must be specified with the order Since the relay only sees secondary current any CT ratio can be used with the relay providing it...

Page 8: ...Warning Undercurrent Override Emergency Restart Memory Override Motor Temperature Compensation Voltage Compensation Feeder Protection Specify with order 1 Motor Full Load Current 2 Drive Equipment eg...

Page 9: ...H RISES FROM 10 TO 101 OF MAXIMUM LOAD CONTROL SETTING IN ONE SECOND DEACTIVATION LOAD CURRENT DROPS BELOW MAXIMUM LOAD CONTROL SETTING 4 MINIMUM LOAD RANGE 0 100 OF MAXIMUM LOAD CONTROL SETTING RESPO...

Page 10: ...sions for the relay are given in Figure 2 1 Phase and ground fault CT dre available from Multilin The dimensions of these CTs are shown in Figure 2 2 FIGURE 2 1 RELAY DIMENSIONS Ir 1tH II I_ _ _ _ _ _...

Page 11: ...to program user requirements Consult the yellow product specification card supplied with the relay to ensure that the factory switch settings match the order requirements Field changes can be made by...

Page 12: ...LY l c 1 0 I A i L_ _ _ OPTION SWffC SETTINGS 8 TO BS 7 GAOi ND FAULT SWITCH sEnlNGS Ct TO C8 FUNCTION OPTION SWITCH SETTINGS jT X S 1tch On 0 Switch Off No meet B2 B3 B4 B5 B6 Bl SM dllll I NOEl fel...

Page 13: ...s are made to the interposing transformer module mounted on the back of the relay CT wires are passed directly through the holes in the module or connected to the terminals supplied as described in Se...

Page 14: ...Ground fault current CT Optional Extra 6 External reset switch Optional 7 Emergency restart keysw1tch Optional 8 RTD temperature sensor Optional Extra OUTPUTS 1I Contactor breaker trip main relay cont...

Page 15: ...ROU D SHIHO AT ONE ENO ONLY PREFERABLY iiElAY TERMINAL A MULTIUN 1311 RELAY WISTED PAIR NOTE RELAY CONTACTS SHOWN IN UNTRIPPED STATE READY FOR STARTING WITH NO ALARM WITH CONTROL POWER APPLIED 10 PH l...

Page 16: ...OWN WITH CONTROL POWER APPLIED AND NO FAULT OR ALARM CONDITION 2 OCS4 COM TERMINAL 4 MUST BE TIED DIRECTLY TO 139 RELAY TERMINAL 1 3 USE 18 LONG MAX OF Vw IRE LENGTH lU CONNECT TERMINALS 16 15 AND 1 1...

Page 17: ...t transformers are connected to the CT module on the back of the relay as shown in figure 2 6b by connecting the CT secondary wires to the screw terminals provided If desired the CT common wires can b...

Page 18: ...he relay A change in state due to a relay lockout trip requires that the reset button be pushed or the external reset terminals shorted in order to reset the relay A motor start stop scheme is indicat...

Page 19: ...r with a 0 2 volt DC range will give a direct readout of motor temperature in degrees celcius A suitable digital meter with C markings is available from Multilin for panel mounting The RTD sensor chan...

Page 20: ...r driving chart recorders programmable controllers or a computer interface Output current saturates below 30mA on overloads The wire connected to terminal 1 may also be grounded at the receiver 3 SETU...

Page 21: ...time Sets maximum time motor can take to attain normal I running mode Calibrated in seconds 5 Reset push button Resets relay after atrip If relay in memory lockout I condition reset does not function...

Page 22: ...come on and the relay will shutdown the motor after a time determined by the run curve selected degree of overload and cumulative effect of previous overloads when the memory is active Selection of th...

Page 23: ...seconds for a trip to occur In this way the motor is shut down before it can overheat while nuisance tripping is avoided Periodic flashes of the unbalance light due to surges from other plant loads ar...

Page 24: ...ed A high start timer setting corresponds toa large motor thermal capacity When the relay first senses a motor current greater than 15 of the maximum load current setting it goes into start mode that...

Page 25: ...lay would always sense an undercurrent condition with the auxiliary relay energised Bearing wear would cause the current to in crease above 95 amps causing the undercurrent condition to drop out If an...

Page 26: ...mory mode contacts open then switched to discharge the memory whenever it is required to set the relay from a lockout mode Since previous starts and overloads are ignored lack of caution using this fe...

Page 27: ...TRIP In protecting driven equipment such as pumps gearboxes compressors and bandsaws it is often desirable to have an immediate trip in the event of a locked rotor during running Table 3 3 shows switc...

Page 28: ...l still trip according to the run curves Figure 3 2 Switch 82 lmmediate Overload Warning Turning this switch on will cause the auxiliary relay to be activated whenever the relay senses an overload pro...

Page 29: ...ENSATION RELAY CAPACITY AVAILABLE 100 75 50 50 Switch B7 Voltage Compensation 100 150 MOTOR TEMPERATURE oC When the supply voltage to the motor drops from its normal value the run up time ol the motor...

Page 30: ...d time delay to trip are adjustable These features make the relay particularly useful for protection of transformers feeder cables in portable substations and arc furnace electrodes Normally the memor...

Page 31: ...ure due to loss of ventilation or high ambient temperatures is provided by the RTD option which must be ordered with the relay if required A resistance temperature detector RTO supplied by the custome...

Page 32: ...nected across terminals A B C as shown in Figure 3 4 to simulate the RTO sensor The potentiometer is varied until a voltmeter across terminals 0 and E reads the desired alarm or trip temperature The p...

Page 33: ...load current can be obtained on special fac tory order 3 15 FAULT DIAGNOSIS A valuable feature of the relay 1s its ability to record the fault condition which caused the motor to be shut down for lat...

Page 34: ...ed high ambient temperature 0 0 0 BLOWN FUSE START check fuse EXCESSIVE UNBALANCE blown fuses 0 0 0 0 0 single phase supply loose wiring connection short between motor windings GROUND FAULT 0 0 0 0 0...

Page 35: ...n of the overload time curve Figure 3 2 is possible by setting a known amount of overload and deter mining the time to trip For example with a 5 amp CT relay and the maximum load control set at 50 inj...

Page 36: ...1 SECONDARY INJECTION TEST SET SCHEMATIC __ TRNISFCllMER O l lS lf ANSfi flMER rJ 1211 t N lflo 31 Si ATEORTD Meal 139 RELAY UN X R TEST GROUND FAULT o OR ACMET RS PHASE AMPS Courtesy of NationalSwitc...

Page 37: ...g a 5 amp CT relay with the full load control set at 60 and the unbalance control at 50 inject phase currents of 2 amps 2 amps and 1 amp Dial the unbalance control back until the unbalance light comes...

Page 38: ...04 10 103 90 127 17 9 42 20 107 79 134 52 9 81 c l j 30 111 67 142 06 10 19 i 40 115 54 149 79 10 58 1 50 I 119 39 157 74 10 97 f 1 60 123 24 165 90 11 35 I 70 1 127 07 I 174 25 11 74 SO t ___1_3 0_ _...

Page 39: ...seconds of continuous unbalance the relay should shut down the motor with the unbalance light on If the residual plant unbalance is too low for any unbalance indication remove one of the phase CT inp...

Page 40: ...s or nmse pickup 11 using thermistor option no thermistor connected not enabled inside relay set too sensitive noise set unt aiance control higher change load distribu1mn check CT ral os norma w1 not...

Page 41: ...rate proportional to the average phase current squared The output of the squar ing circuit is placed in series with different resistor values to control the integrator charging current and hence the...

Page 42: ...FIGURE 5 1 8 i 0 ii r 37 Courtesy of NationalSwitchgear com...

Page 43: ...old level Further time delay of this signal can be selected before a trip signal is generated A separate comparator generates an alarm signal at 50 of the trip level selected Power for the unit is pro...

Page 44: ...S7 Si r IO 4 lI _ i ll IK BSi O l i IRTO SENSOR i 100 A OA Plot Jllic I Cop I 331 2 331 2 331 2 00 00 iOOK 331 2 331 2 OK 00 33K2 100K f7K4 8K2 1 171 4 3 4 4mA 331 2 33K2 461 4 l00A NieHt 33K2 OOK 331...

Page 45: ...139A BOARD COMPONENT SIDE i 0 139B BOARD COMPONENT SIDE _ I l 1 0 fl 3s I CSI CS6 139C BOARD COMPONENT SIDE Courtesy of NationalSwitchgear com...

Page 46: ...MOTOR PROTECTION RELAY liiJ MULJILIN Dl SiON OF DE iLA J JLANUFACTU iNG INC 2 15 A N ER SON AVENUE 1 A i P J ONTARiO CL J A L3P 4C7 Courtesy of NationalSwitchgear com...