Intelligent Temperature Controller for Dry-Type Transformer

• Customization: Available
• After-sales Service: Two Years
• Warranty: Two Years
• Model NO.: LON8000
• Trademark: Linkelec
• Origin: Made in China
• Production Capacity: 10000 Per Month

Product Description

Intelligent temperature controller for dry-type transformer

1.Product profile

The intelligent temperature controller for dry-type transformers consists of two circuits: a temperature monitoring system and an output control system. The temperature monitoring system uses a microcontroller as the central processing unit, combined with other circuits, to complete temperature measurement, display, and corresponding signal output. The output control system completes the control output and various status alarms and outputs of the cooling fan. In the temperature monitoring system, in order to achieve remote computer monitoring, the system uses RS-485 communication to transmit temperature data and parameters to a remote computer to form a distributed control system.
This product is a new generation controller designed specifically for the safe operation of dry-type transformers, which can simultaneously monitor the three-phase temperature of the dry-type transformer and control the fan. It has functions such as temperature over limit alarm, high temperature trip, sensor abnormality, and fan disconnection alarm, which can better ensure the safe and efficient operation of unmanned power supply systems. This product has the characteristics of strong environmental adaptability, high precision, small size, long service life, easy installation, and easy use.
The product is mainly used for temperature monitoring and fan control of dry-type transformers in power distribution systems. It can be widely used in distribution rooms with dry-type transformers, box type transformers, and other occasions.

2.Product specifications

performance parameters		performance indicators
3-channel external temperature sensor probe temperature measurement	Temperature range	0~200°C
	Precision	1%FS
Operating power supply	operating voltage range	220VAC(±20%)/50HZ(±4%)
	Power consumption	6W
Communication	interface type	RS485
	address range	1 to 247, where 0 is the broadcast address and 255 is the wildcard address
	Baud rate	2400~9600bps
	Statute	Modbus-RTU
	transmission distance	1KM
environmental conditions	Operating Temperature	-25ºC~+70ºC
	Operating humidity	0~93%RH

3.Selection specifications

function module	Serial number	function point	function point descriptions	Intelligent temperature controller for dry-type transformers
				LON8000
real-time measurements	1	Winding temperature measurement	Up to 3 external temperature sensor probes can be accessed to measure 3 temperatures.	√
Temperature imbalance	2	Temperature imbalance	Calculating the three-phase temperature imbalance, the	√
cooling fan control	3	control mode	manually activating the fan	√
	4		automatic fan activation	√
Cabinet door opening and closing monitoring	5	Cabinet door opening and closing monitoring	Cabinet door opening and closing monitoring, monitoring of open door alarm, switching input.	√
Alarm	6	Over-temperature alarm	When the temperature value monitored by the device can not be reduced under the cooling of the fan, and rises to the set point of "over-temperature alarm", the over-temperature alarm signal is activated, and the over-temperature indicator light is on, until the temperature drops to the "alarm return point" (the difference between the alarm point and the return difference), then the alarm signal is canceled and the indicator light goes out. When the temperature drops to the "alarm return point" (the difference between the alarm point and the return difference), the alarm signal will be lifted and the over-temperature indicator will go out.	√
	7	High temperature trip alarm	When the temperature value monitored by the device reaches the "over-temperature alarm point", it will not be effectively controlled and will rise to the set "high temperature trip action point", and after a delay, it will activate the "high temperature trip" signal, and the trip indicator will light. After a delay time, the "high temperature trip" signal will be activated and the trip indicator light will be on. And through the trip function to stop the operation of the equipment to prevent equipment damage.	√
	8	Fault Alarm	If the temperature sensor is abnormal (short-circuit or disconnection), the corresponding fault indicator lights up and the "Fault Alarm" relay operates. The output of the "Fault Alarm" relay is energized and closed.	√
event logging	9	SOE event logging	Record the over-temperature alarm;	√
			Three-phase temperature imbalance record;
		The best-value record	The maximum and minimum values are recorded	√
Communications	10	means of communication	RS485	√
	11	communication protocols	Modbus-RTU	√
	12	mailing address	1~247, 0 is the broadcast address,255 is the wildcard address	√
	13	the communication baud rate	2400 bps,4800bps,9600bps	√
control parameter settings	14	temperature setting range	0~200°C	√
	15	The return difference, the	5~20°C	√
	16	Trip delay	1 to 60 seconds	√
control and signal output	17	fan control	Active contact output (normally open) 16A/220VAC for direct drive of single-phase fans	√
	18	Over-temperature warning	Passive contact output (normally open) 5A/220VAC, 10A/28VDC	√
	19	High-temperature tripping	Passive contact output (normally open) 5A/220VAC, 10A/28VDC	√
	20	Fault Alarm	Passive contact output (normally open) 5A/220VAC, 10A/28VDC	√
Data zeroing	21	Data zeroing	The stored data is completely erased	√
Note: "√" indicates that this function is standard, "○" indicates that this function is optional

4.Product installation and schematic diagram
5.About our service           
*  We could provide 7* 24-hour phone call after-sales service. 
*  We provide a 2-year guarantee time and will change the meter for you within 1 year if there's something wrong with the product. Except for natural disasters or man-made reasons.
*  Recommend the most advanced application technology and management model in the industry to customers, and provide customers with detailed solutions.
6.Package and ship