Functions
Sampling
overcurrent alarm
The overcurrent alarm is triggered when sampling current is bigger than
6.0A.
≡0
Discharge
delay protection
The switching lock-up time for the same group of capacitors is 3 minutes.
Circular self-
test function
Provides circular self-test function for factory testing of capacitor screen.
Safety protection
IP30
Installation
method
Embedded
Technical
parameter
s
Sampling and
rated voltage
380VAC±20% 440VAC±20% 220VAC±20% 240VAC±20%
Overvoltage
threshold setup
400V~456V 400V~528V 230V~270V 240V~300V
Overvoltage
factory preset
430V 500V 250V 270V
Rated frequency
50Hz±5% or 60Hz±5%
Sampling current
150ｍA~5A, input impedance≤3mΩ
Undercurrent
lock-up
≤150mA
Current
ratio setup
Current ratio setup range for 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 smallest capacitor bank
Manual mode: reactive set value, 1~120kvar(factory preset 10 kvar)
Removing
threshold setup
Power factor, 0.85~-0.95 continuously adjustable (factory preset 1.00)
Circuit number
setup
JKF8-6 (1~6 circuits available), JKF8-12(1~12 circuits available)
Operating method
Automatic circular switching/manual switching
Maximum power
consumption
15W
Tightening torque
Terminal screw torque≤2.5N·m
Output contact
capacity
5A/220V (or 3A/380V)
Weight About 1.5Kg
JKF8 SeriesSmart Low-Voltage Reactive Power Compensation Controller
02
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