Low Voltage Cable Branch Box Monitoring Unit

• Customization: Available
• After-sales Service: Two Years
• Warranty: Two Years
• Model NO.: LINK1000
• Display: Digital
• Installation: Direct Connected
• Usage: Multi-Functional Energy Meter
• Electric Equipment: Three-phase Four-wire
• Theory: Electronic Meter
• Power Meter Connection: Feed-through Type
• Type: Energy Meter
• Certification: ISO
• Customized: Customized
• Transport Package: Carton
• Trademark: Linkelec
• Origin: Made in China
• HS Code: 90283012
• Production Capacity: 50000 Per Month

Product Description

                                                               Low voltage cable branch box monitoring unit

 

1.Product profile
The low-voltage cable branch box monitoring unit is a new type of power monitoring and control unit that integrates measurement recording, energy metering, remote signaling and control, alarm output, and network communication functions. This unit can measure multiple grid parameters such as voltage, current, power, residual current, temperature, etc; Capable of analyzing 2-63rd harmonics and calculating multiple power quality parameters; Measurable fundamental and full wave active and reactive electrical energy; Configurable independent RS485 communication interface, supporting carrier and 4G dual-mode communication, supporting DL/T645-2007 communication protocol; It has switch input and relay output functions, and has a reliable anti misoperation design. It can achieve the monitoring of the operation status of 5 incoming and outgoing branches (1 in and 4 out) in the branch box, as well as the indication of fault status.

 

 

2.Technical indicators‘

performance parameter		Performance index
accuracy class		Voltage: ≤ 0.5%; Current: ≤ 0.5%; Active power: ≤ 0.5%; Reactive power: ≤ 1%; Power factor: ≤ 0.5%; Apparent work
		Rate: ≤ 1.0%; Electricity quantity: ≤ 0.5%; Frequency: ≤± 0.02Hz
display mode		OLED LCD screen
Connection mode		Three-phase four-wire/three-phase three-wire
input voltage	rated voltage	AC220V
	frequency range	45~65HZ
	measuring range	154V~286V
incoming current	rated current	Rated current 100mA incoming AC 600A/100mA.
		Branch AC 400A/100mA
	frequency range	45~65HZ
	measuring range	Incoming wires 20A~720A
		Branches 20A~480A
working power supply	rated voltage	AC 220V (allowable deviation -20%~+20%)
	Power consumption	Not more than 3W
Switch input	Input form	Dry node (internal DC24V)
Switch output	output form	Mechanical contact
	contact rating	AC250V/1A
communication interface	Interface form	RS485, carrier module
	protocol	ModbusRTU,DLT/645
environmental conditions	Ambient temperature and humidity	Temperature range:-40 ~+70ºC
		Maximum temperature change rate: 1.0ºC/ min
		Relative humidity: 10 ~ 100%
		Maximum absolute humidity: 35g/m
	operational environment	There is no explosion danger, corrosive gas and conductive dust, serious mold and violent vibration shock source.
	storage temperature	-40ºC~80ºC
Clock accuracy	Daily error	≤0.5 seconds/day, supporting communication timing.

3.Selection specifications

functional module	S/N	Function point	Function Point Description	Low voltage cable branch box monitoring unit
real-time measurement	1	Phase voltage	Phase voltage: Ua, Ub, Uc	√
	2	Line voltage	Line voltage: Uab, Ubc, Uca	√
	3	Voltage sequence component	Voltage sequence components: U1, U2, U0	√
	4	Phase current	Phase current: Ia, Ib, Ic	√
	6	Active power	Active power: Pa, Pb, Pc, P	√
	7	Reactive power	Reactive power: Qa, Qb, Qc, Q	√
	8	Apparent power	Apparent power: Sa, Sb, Sc, S	√
	9	power factor	Power factor: Pfa, Pfb, Pfc, Pf	√
	10	phase	Voltage/current: ∠ Ua, ∠ Ub, ∠ Uc, ∠ Ia, ∠ Ib, ∠ Ic	√
	11	frequency	System frequency: F	√
Electricity metering	12	Active kilowatt hour	Bi directional active electric energy of phase separation and phase combination	√
	13	Reactive kilowatt hour	Two way reactive electric energy of phase separation and phase combination	√
	14	Apparent electric degree	Apparent electric energy of phase separation and phase combination	√
frozen	15	Load record	Record once every 5 minutes for 7 days, with cyclic coverage	○
Power quality	16	Harmonic content	Harmonic content of three-phase voltage and current for 2~31 times	√
	17	Harmonic distortion rate	Total, odd and even harmonic distortion rate	√
	18	out-off-balance	Voltage and current imbalance	√
exceed the time limit	19	Over limit alarm	Level 8 out of limit alarm function, which can monitor power parameters and remote signals, generate alarm when conditions are met, and can be linked with the output for alarm exit linkage	√
Event record	20	SOE record	It has 64 SOE recording functions, including switch displacement, remote control, out of limit alarm, etc., with time mark recording	√
	21	Record of maximum value	The maximum and minimum values of relevant parameters (phase/line voltage, current, active power, reactive power, apparent power, power factor, frequency, demand) can be counted in real time and recorded with time scale	√
Clock	22	Clock	With hardware accurate clock	√
I/O	23	Switch input	4-way switching value active node input	○
	24	Switching value output	2-way passive switching value output, support level/pulse type, support remote control or serve as local threshold crossing alarm outlet	○
communication interface	25	RS485 communication	Standard configuration: 1-way RS485 communication, supporting MODBUS-RTU protocol; Support online upgrade program through RS485 interface	√
	26	Carrier communication	Support one channel single-phase carrier module interface (645 protocol)	√
Current transformer	27	External current transformer	Incoming line is configured with 600A~100mA transformer	√
			The branch is configured with 400A~100mA transformer
Note: "√" mark is equipped with this function as standard, and "○" means 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