This patented Effective
factor ELCB sensitively operates
by resistive leakage current, but operates non-sensitively at the zone of
capacitive leakage current. The general (conventional)
ELCB is tripped by Io as the vector sum of Igr (resistive leakage current) and
Igc (capacitive leakage current), so the
conventional ELCB might be tripped by capacitive leakage current of less
dangerous leakage current also in spite of not wanting.
Our IGR ELCB(RCD) technology has a specialty of being tripped by
resistive leakage current component (Igr) by patent on IGR ELCB Trip
Curve.(PCT WO2006/035519 A1 / Patented Korea No. :
10-0876651).
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IGR-52 |
IGR-32 |
 General Purpose
The general purpose of our technology can be used effectively for a fire caused by a short
circuit and protection of human lives even in zones with harmonics
noises.
?Our technology has received favorable responses among customers in
areas such as electric power and communication companies, power plants,
semiconductor manufacturers, LED traffic light controllers, LED lights, and
electric safety diagnosis companies.
RCD
Tripping concept picture
The Fomular of Igr,
Igc, Io calculation and Dalziel Research Report
Pictures
¡¡Specifications
and Dimensions
Comparisons
and Applications
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- Operates due to Io in spite of very
low power consumption.
- Malfunction due to harmonics and
noise generated from SMPS used in
digital loads such as LED, Computer,
CCTV, ..Etc.
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Residual
leakage trip current is too
high for human safety and properties fire.
- Impossible
to lower IGR because of
its sensitivity.
- High cost
of total construction.
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- Operates due to IGR mainly.
- Properly
operates in spite of harmonics
and noise such as digital loads.
- No
tripping down from digital loads of
LED, Computer, CCTV,.. Etc.
- Helpful
for human and animals safety
basically.
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Possible
to manufacture high sensitive
ELCB(RCD) under 10mA standard.
- Prevents
fire disaster of electric leakage
current
basically.
- Saves total
cost of BLDG and factory
construction due to reduction install.
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IGR-52 installed at LED Traffic Street
Lightings Box
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Auto recovery type RCD of IGR-32
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¡¡Customers
Korea
KEPCO, KHNP, Samsung SMD
Co, Korea Telecom, Seoul Metro City, Hyundai Research Center, Hyundai Elevator,
Korea Government, Apartment basement LED, LED Lightings, Korea Telecomm Co.,
SK Telecom, etc |
IRG RCD (Residual Current Device) or IGR ELCB( Earth Leakage Circuit
Breaker)
