Low Voltage Feeder Monitoring Device - Monitoring Module

• Customization: Available
• After-sales Service: Two Years
• Warranty: Two Years
• Model NO.: LINK1026E
• Trademark: Linkelec
• Origin: Made in China
• Production Capacity: 20000 Per Month

Product Description

Low voltage feeder monitoring device - monitoring module

1.Product profile
The low-voltage feeder monitoring device consists of a communication unit, a power module, and a monitoring unit. The communication unit is generally installed in the distribution cabinet, column mounted JP cabinet, or low-voltage cable branch box. It serves as a data aggregation gateway to achieve upstream communication through carrier modules, communicate with downstream monitoring units through CAN bus, and achieve local maintenance of the system through Bluetooth interface. The number of monitoring units that can be connected is not less than 64; The power module provides DC power, CAN bus, and sampling voltage to the monitoring unit through a cascaded interface. A single power module can be connected to no less than 10 monitoring units; The monitoring unit is connected to an external current transformer to achieve current detection function, connected to the voltage sampling signal output by the power module to achieve voltage detection function, connected to a switch input to achieve station status monitoring, with functions such as topology characteristic signal transmission, characteristic signal analysis, and phase sequence recognition.

2.Product specifications

performance parameters		performance indicators
accuracy class		Voltage: ≤±0.5%.
		Current: ≤±0.5%;
		Active power: ≤±1%; reactive power: ≤±2%;
		Power factor: ≤±1%; apparent power: ≤±2%;
		Power: ≤± 1%; Frequency: ≤± 0.01Hz
Wiring method		Three-phase, four-wire
Input current	Measuring range	0~250A , 0~ 400A, 0~600A
Operating power supply	Rated voltage	DC12V, allowable deviation -10%~+20
	Power consumption	The monitoring unit consumes no more than 40mA of current when powered by DC12V
Communications	communication protocols	DL/T645-2007
Reset	Hardware	Press and hold (>3s) the reset button for hardware reset, the
	Software	software remote reset
environmental conditions	ambient temperature, humidity	Temperature range: -40~+70°C
		Maximum rate of temperature change: 1.0°C/min
		Relative humidity: 10 to 100%
		Maximum absolute humidity: 35g/m³
	the environment in which it is used	free from explosive hazards, corrosive gases and conductive dust, the presence of severe mold, and sources of severe vibration and shock
	storage temperature	-40ºC~80ºC
clock accuracy	Daily error	The monitoring unit and the communication unit in the low-voltage feeder monitoring device shall realize high-precision timing, and the timing accuracy shall be not less than 20ms, and can receive the clock calling and timing commands from the upstream equipment

3.Selection specifications

function module	Serial number	function point	function point descriptions	The monitoring module
real-time measurements	1	phase voltage	Phase voltages: Ua, Ub, Uc	√
	2	line voltage	Line voltage: Uab, Ubc, Uca	√
	3	phase currents	Phase currents: Ia, Ib, Ic	√
	4	Active power	Active power: Pa, Pb, Pc, P	√
	5	Reactive power	Reactive power: Qa, Qb, Qc, Q	√
	6	apparent power	Apparent power: Sa, Sb, Sc, S	√
	7	Power factor	Power factor: Pfa, Pfb, Pfc, Pf	√
	8	Phase	Voltage/current: ∠Ua, ∠Ub, ∠Uc	√
	9	Frequency	System frequency: F	√
Electricity metering	10	Active Electricity	Split-phase and combined-phase bi-directional active energy	√
	11	reactive power meters	Split-phase and combined-phase bi-directional reactive energy	√
	12	The view is in the electric degree	Split-phase and combined-phase visual energy	√
Freeze	13	load records	Recorded every 5 minutes for 7 days, with cyclic coverage that	√
Clock	14	Clock	With hardware precision clock	√
Current transformers	15	Supporting external current transformers	Equipped with 250A/50mA, 400A/80mA, 600A/120mA transformers	√
phase sequence identification	16	With its own positive phase sequence, reverse phase sequence monitoring and phase sequence recognition function		√
topology identification	17	with hardware topology recognition, injection and acquisition of characteristic signals from B-phase loops		√
data logging	18	All volumes should be stored locally for a period of not less than 7 days		√
Telemetry	19	Incoming and outgoing	With 2-way open-in telemetry status	√
communication interface	20	debugging interface	Support 1 RS485 interface for product debugging	√
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