Electronic Temperature Monitor for Liquid Cooled Transformers
111
111----300 Series
300 Series
Instruction Manual
IST-075-1
Страница 1: ...Electronic Temperature Monitor for Liquid Cooled Transformers 111 111 111 111 300 Series 300 Series 300 Series 300 Series Instruction Manual IST 075 1...
Страница 2: ...ctronic Temperature Monitor 300 Series Electronic Temperature Monitor 300 Series Electronic Temperature Monitor for Liquid Cooled Transformers for Liquid Cooled Transformers for Liquid Cooled Transfor...
Страница 3: ...Mounting of the Temperature Monitor 6 Primary Power 6 Sensors 6 Relay Contacts 7 mA Output 7 RS 232 Link 7 RS 485 Link optional 8 Heater Kit optional 8 Operation______________________________________...
Страница 4: ...t contacts operating from the oil temperature In a retrofit situation the ETM universal sensors replace the mechanical thermometer sensors See Figure 1 for enclosure details Figure 1 Enclosure Dimensi...
Страница 5: ...emperature displays A failed sensor will NOT cause a TRIP A failed microprocessor will activate Fan 1 and Alarm relays via hardware control The Fan 1 relay is normally de energized non failsafe It wil...
Страница 6: ...ent temperature The product number of the electronic module to monitor oil temperature is defined in the functions installed in the module as follows 111L ___ ___ M Modbus X no Modbus A milliamp loop...
Страница 7: ...to guide you through mounting supplying power to and wiring your Temperature Monitor Operation A description of use during transformer operation as well as easy instructions on how to perform a system...
Страница 8: ...mary power is connected to TB1 19 and TB1 21 with an earth ground connection to TB1 20 Note that because of the wide range of possible input voltages the user must provide fuse or circuit breaker prot...
Страница 9: ...rovided at TB1 16 TB1 17 TB1 18 to indicate that an alarm temperature value has been reached or that a fault has been detected This relay normally energized so loss of power will cause an alarm to be...
Страница 10: ...this manual for additional information Figure 3 Wiring Diagram Label Heater Kit optional Heater Kit optional Heater Kit optional Heater Kit optional The optional enclosure heater kit KIT 031 1 sold se...
Страница 11: ...r operation and a terminal block for wiring connections The unit will be wired as noted above for 120 240 VAC with the exception that the added terminal block will be used to supply the AC power and b...
Страница 12: ...he ALARM state An Alarm 4 icon indicates that the TRIP relay is in the TRIP state A Triangle with an in it indicates that FAULT has been detected This will also cause the Alarm and the Fan icons and r...
Страница 13: ...on will clear the memory of the maximum stored temperature causing the current highest winding temperature to become the new maximum stored temperature 111L Display the FAN 1 ON temperature setpoint a...
Страница 14: ...on for one minute after power is turned on Fan Bank Switching Fan Bank Switching Fan Bank Switching Fan Bank Switching If enabled the Fan Bank Switching will swap the setpoints of Fan 1 and Fan 2 aft...
Страница 15: ...splay Environment Operating Temperature 30 C to 72 C Storage Temperature 50 C to 85 C Relative Humidity to 90 non condensing Hi pot 2 300 VAC 50 60 Hz for 1 minute relay contact and power to sensor te...
Страница 16: ...It will also put an icon on the desktop to start the program Files Files Files Files When the program first starts you must either select an existing configuration file or start a new configuration f...
Страница 17: ...layed configuration data and the winding rise curves to be written to the ETM After the data is changed in the ETM memory the ETM will reset to activate the new values Get configuration data from ETM...
Страница 18: ...ent for the CT secondary is 5 amps which corresponds to a 100 2400Amps 32kV 50MVA 153 overload rating for the CT From the transformer manufacturers heat rise test data you obtain the average winding r...
Страница 19: ...the current thru the CT to a known value enter the value as of Full Scale and press the Send Calibration Data to ETM button It is recommended that the known value be 100 of the full scale of the inst...
Страница 20: ...Alarm setpoint up or down Push the MAN FAN button The 4 icon will be on and the display will show the Trip setpoint Use the TEST and MAX MEMORY RESET buttons to step the Trip setpoint up or down Push...
Страница 21: ...gned to be installed in Installation category III per EN61010 1 low voltage directive An Earth Ground terminal connected to the Model 111L 111W is provided as TB1 20 This provides the means to connect...
Страница 22: ...three switches depressed until the unit stops cycling thru the readings approximately 5 seconds The unit will then be displaying the current baud rate 12 1200 bits per second 24 2400 48 4800 96 9600 1...
Страница 23: ...d Comments 40001 40002 40003 40004 111L Temperature Not used Not used Not Used 111W Oil temperature Winding temperature CT Amps in of full scale Ultimate Winding temp Normal temp range is 0 255d in lo...
Страница 24: ...Alarm Switching differential Trip Switching differential Fan Exerciser interval Fan Exerciser run time Time since last Fan Exercise Firmware Version Fan 2 setpoint Fan 2 Switching differential Setpoin...
