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NKB-520

Characteristics
● The intelligence which gathers diagraph, control, protection, communication function in the integral whole turns appearance.
● Can measure the V, A, W, var, PF, Wh, varh, Hz in the electric power circuit.
● Two roads output after the electric appliances, used for dividing and combine a chopper and respectively have independent action after the electric appliances.
● Two the road light Ou insulation numeral output, can conduct and actions have a great achievement/have no achievement electricity degree output.
● 4 road Yao letter importation, through light the Ou insulate;Have a correspondence RS-485.
● The power supply, signal input and output carries to have to defend thunder protection function and can be provided to make choice of purchase.
● Can used for measure of automations, such as electric power system, factory process and building Yu...etc. to control a protection.


Model specifications:
NKB-520----------    I:Have to defend the thunder protection function blank:DO not defend a thunder protection          
                     Communication: R:RS-485  
                     Connect a line method:3:Three mutually three lines or three mutually four lines
                     Shape size: A:122 × 122 × 114 mms
                     520 the intelligence electric power's protections measure to control an instrument
Technical specification: 

Measure

Electric voltage, electric current, have a great achievement power, have no achievement power, power factor, frequency,

Have a great achievement an electricity degree and have no achievement electricity degree

The direct importation measures distance scope

Electric voltage:The sum is worth a 100 Vs/400 Vs and can choose electric current:The sum certainly inputs a 5 As/1 AN and can choose

Protect function

Lead to flow protection, lead press protection, low pressure protection

The communication connects

RS485(standard), communication code:MODBUS RTU

Show a way

The LCD LCD show

Measure accuracy

0.5%F.S

Work power supply

AC 160～264V；

DC 100～280V

Report to the police a way

Gao Di more limits to report to the police

The whole machine achievement consume

≤5W

Connect a line method

Three mutually three lines or three mutually four lines

Use environment

Work temperature:-20 ℃～s+70 ℃ , relative humidity:5% ～s 95%(do not knot Lou)

Shape size

122 ×s 122 ×s 114 mms;Open bore:111 ×s 111 mms;Heavy:500g

Defend thunder

The biggest flows capacity

3 kAs(8/20 μ ses)

The electric voltage protects level

<1500 Vs

Three, equip to carry son diagram and elucidation
(1) Carry the son connects line diagram

          
                                             
(2) Carry on the back the plank carries sub- elucidation
1~4 for three mutually the electric voltage importation carry son, 1 connect A mutually, 2 connect B mutually, 3 connect C mutually, 4 order for the neuter gender.
 5~10 connect to go into respectively three mutually the electric current carry son,(5 and 6) is an A mutually,(7 and 8) is B mutually,(9 and 10) is C mutually.
11~14 believe an importation to carry son for 4 Yaos, 15 for public carry;
16~18 in order to control exportation to carry son, 17 cents, 18 match, 16 for public carry.Control from a distance and need a protection start of act the exit these 2 after the electric appliances
23-26 carry son for the communication, 23 send out A+, 24 send out B-, 25 communications connect ground..
27~29 connect to go in to carry son for the power supply.


Note:
(1)Can from the enactment system of front panel or communication parameter, the system parameter all deposits in FLASH in, don'ting need battery can immediately keep over a long period of time;Modify the system parameter needs to input a password to protect electricity parameter and system function.
(2)The pulse exportation width can set, can also conduct and actions report to the police exportation.
(3)Connect line to carry son while having an appearance usage of defend the thunder function""beard and the earth credibility link.
(4)The appearance connects line if have fluctuation, with the factory appearance connect line for accurate.