background image

Table

 

3

 

Parameter

 

setup

        Note

When

 “

F

-

0”

 

is

 

set

 

to

 “

1”

 (

full

 

automatic

), “

F

-

1”

 

is

 

set

 

automatically

other

 

parameters

 

can

 

be

 

set

 

manually

3

.

3

.

2

.

2

 

See

 

Table

 

4

 

for

 

parameter

 

setup

 

and

 

operation

 

instructions

  

Table

 

4

 

Parameter

 

setup

 

and

 

operation

 

instructions

            

is

 

connected

 

to

 

phase

 

C

.

        ⑥ 

FU1

~

3—

 

External

 

fuse

 

provided

 

by

 

user

 

itself

The

 

rated

 

current

 

of

 

fuse

 

core

 

FU1

 

is

 

5A

the

 

rated

 

            

current

 

of

 

fuse

 

core

 

FU2

 

and

 

FU3

 

is

 

1A

.

3

.

3

 

Operating

 

Principles

Parameter

 

Setup

 

and

 

Application

 

Requirements

3

.

3

.

1

 

Operating

 

principles

        

The

 

controller

 

displays

 “

CAL”

 

when

 

it

 

is

 

powered

-

on

then

 

it

 

will

 

enter

 

auto

 

operating

 

status

 

after

 

5

 

seconds

If

 

the

 

input

 

current

 

meets

 

minimum

 

requirement

 (

bigger

 

than

 

150

A

), 

the

 

controller

 

will

 

display

 

measured

 

grid

 

power

 

factor

 

COS

Φ. 

In

 

full

 

automatic

 

setup

 

mode

the

 

controller

 

will

 

initiate

 

a

 

self

-

learning

 

process”

During

 

this

 

process

the

 

controller

 

will

 

compare

 

the

 

given

 “

power

 

factor

 

value”

 

with

 

the

 

current

 

power

 

distribution

 

system

 

and

 

add

 

capacitors

 

automatically

 

to

 

improve

 

power

 

factor

In

 

the

 

meantime

the

 

controller

 

will

 

record

 

the

 

values

 

of

 

the

 

connected

 

capacitor

 

banks

 

and

 

use

 

the

 

smallest

 

capacitor

 

bank

 

as

 

the

 

reactive

 

adding

 

threshold

.

        

No

 

matter

 

in

 

automatic

 

or

 

manual

 

parameter

 

setup

 

mode

the

 

controller

 

will

 

compare

 

the

 

measured

 

inductive

 

reactive

 

power

 

demand

 

with

 

F

-

1

 

reactive

 

power

 

threshold

 

Qs

If

 

the

 

inductive

 

reactive

 

power

 

demand

 

is

 

larger

 

than

 

adding

 

threshold

the

 

lagging

 

indicator

 

will

 

start

 

flashing

After

 

delay

add

 

capacitors

 

level

 

by

 

level

 

until

 

the

 

grid

 

reactive

 

power

 

demand

 

is

 

lower

 

than

 

reactive

 

power

 

threshold

 

Qs

 

and

 

the

 

power

 

factor

 

is

 

not

 

bigger

 

than

 

target

 

power

 

factor;

 

when

 

the

 

power

 

factor

 

of

 

the

 

grid

 

exceeds

 

target

 

power

 

factor

the

 

leading

 

indicator

 

will

 

start

 

flashing

the

 

system

 

will

 

automatically

 

remove

 

capacitor

 

banks

 

in

 

operation

 

level

 

by

 

level

 (

in

 

5

 

seconds

).

3

.

3

.

2

 

Parameter

 

setup

3

.

3

.

2

.

1

 

See

 

Table

 

3

 

for

 

parameter

 

setup

 (

menu

 

introductions

)     

Full

 

automatic

 

setup

 

mode

In

 

this

 

mode

there

 

is

 

no

 

need

 

for

 

further

 

setup

 

except

 

correct

 

wiring

User

 

just

 

need

 

to

 

setup

 

F

-

6

 

correctly

the

 

system

 

will

 

display

 

true

 

values

 

of

 

total

 

current

reactive

 

power

 

and

 

active

 

power

 

under

 

full

 

automatic

 

setup

 

mode

 (

F

-

0

 

SET

 

1

). 

Manual

 

setup

 

mode

This

 

mode

 

enables

 

professionals

 

to

 

conduct

 

setup

 

according

 

to

 

system

 

conditions

In

 

manual

 

setup

 

mode

user

 

must

 

set

 

the

 

current

 

transformer

 

ratio

 

correctly

 

when

 

starting

 

the

 

machine

 

for

 

the

 

first

 

time

For

 

example

if

 

the

 

sampling

 

current

 

transformer

 

ratio

 

is

 

1000

/

5A

the

 

controller

 

ratio

 

should

 

be

 

200

.(

F

-

6

  

SET

  

200

F

-

0

Threshold

 

setup

 

mode

1

 

or

 

0

1

1

 

for

 

full

 

automatic

 

setup

0

 

for

 

manual

 

setup

 

F

-

1

Adding

 

threshold

1

~

120

 

kvar

10

 

kvar

1

Does

 

not

 

display

 

F

-

1

 

under

 

full

 

automatic

 

mode

 

F

-

2

Target

 

power

 

factor

0

.

85

~-

0

.

95

1

.

00

0

.

01

Minus

 

means

 

capactive

 

system

  

F

-

3

Switching

 

delay

5

~

120

 

seconds

30

 

seconds

1

F

-

4

Overvoltage

400V

~

456V

430V

2

Backflash

 

voltage

 

8

~

10V

  

F

-

5

Number

 

of

 

control

 

circuits

1

~

6

 

or

 

1

~

12

6

 

or

 

12

1

Two

 

specifications

  

F

-

6

Current

 

sampling

 

tranformer

 

ratio

5

~

1200

60

5

(

300

 : 

5

)  

Code

Name

Setup

 

range

Factory

 

settings

Increment

Remarks

05

JKF8 SeriesSmart Low-Voltage Reactive Power Compensation Controller

Summary of Contents for JKF8 Series

Page 1: ...Standard JB T 9663 2013 NO 2021 01 JKF8 Series Smart Low Voltage Reactive Power Compensation Controller User Instructions ...

Page 2: ...maintenance 2 Installation in any damp condensed phase environment with inflammable and explosive gas is forbidden 3 When the product is being installed or maintained the power must be switched off 4 You are prohibited from touching the conductive part when the product is operating ...

Page 3: ...heric conditions 50 relative humidity at 40 up to 90 at 20 Altitude 2000m take ventilation heat dissipation and anti condensation measures for altitude above 2000m Pollution class installation category Free from hazardous gases and vapors conductive or explosive dusts and strong mechanical vibration Functions Control strategy Compound control of reactive power and power factor ensuring reliable sw...

Page 4: ...external sampling current transformer 5 1200 set ratio factory preset 60 means 300 5 Delay time setup 5 120 seconds factory preset 30 seconds Setup mode Full automatic mode display code 1 no need to set adding threshold and removing threshold Manual setup mode display code 0 adding threshold and removing threshold need to be set manually Adding threshold setup Full automatic mode capacity of the s...

Page 5: ...ly and fixing of the controller Figure 2 Product installation and fixing Table 2 Description of dynamic parameters Code Definitions Unit Description I Current A Use approximate value when measured value exceeds display range for example displays E13 for 1260A U Voltage V Displays measured voltage Q Reactive power kvar Use approximate value when measured value exceeds display range for example disp...

Page 6: ...se A for current phase B and C for voltage phase B for current phase A and C for voltage phase C for current phase A and B for voltage Terminal COM is the relay common terminal for the output of group 1 12 of the controller Terminals 1 12 are used for output control of the contactors of the compensation circuits of the capacitor display If the system voltage is 3 phase 380V and the coil voltage of...

Page 7: ...dd capacitors level by level until the grid reactive power demand is lower than reactive power threshold Qs and the power factor is not bigger than target power factor when the power factor of the grid exceeds target power factor the leading indicator will start flashing the system will automatically remove capacitor banks in operation level by level in 5 seconds 3 3 2 Parameter setup 3 3 2 1 See ...

Page 8: ...ts the value of each circuit is 15 20 30 30 30 30 30 30 then the set Qs value should be minimum capacity of 15 kilovar F 1 SET 15 Manual switching In automatic mode press and hold SET menu key for 3 seconds to enter manual mode Press adjustment display key to add one group of capacitor bank press parameter display key to remove one group of capacitor bank Circular self testing In automatic mode pr...

Page 9: ...re disconnecting the power supply of the cabinet 4 1 4 Short circuit the secondary side of the sampling current transformer before removing or replacing the JKF8 controller to prevent open circuit of the current transformer Remove the short circuit line after reinstalling the controller 4 2 Analysis and troubleshooting of faults 3 3 3 Preparation and inspection before use 1 Before using the capaci...

Page 10: ... adding capacitors the power factor remains almost the same The installation position of the current transformer is wrong the primary current is not included in the cabinet Take total current sampling current load current capacitor current which means the primary line of the cabinet is connected after the sampling transformer 6 No matter what load the controller always displays leading the power f...

Page 11: ... be disposed of according to the industrial waste treatment process or be sent to the recycling station for assortment dismantling and recycling according to local regulations 5 Environmental Protection 09 JKF8 SeriesSmart Low Voltage Reactive Power Compensation Controller ...

Page 12: ...JKF8 SeriesSmart Low Voltage Reactive Power Compensation Controller DR J03 JKF8 Series Smart Low Voltage Reactive Power Compensation Controller JB T 9663 2013 10 ...

Page 13: ...JKF8 SeriesSmart Low Voltage Reactive Power Compensation Controller 11 ...

Page 14: ...JKF8 Series Smart Low Voltage Reactive Power Compensation Controller User Instructions ...

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