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 KJ Dynatech Inc
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 Hyung Seung Kim
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 Suite 506, Byucksan DigitalValley6 #219 Gasan-digital 1-Ro, Gasan-dong, Geumcheon-gu, Seoul 153-704, Korea
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KJ Dynatech has established as a name of Gumjung Mulsan importing high voltage testing equipment - becoming the leading company of measurement industry in 1977. Afterward 33 years, we contributed to various industries as Utility, Refinery, Power Plant and Iron & Steel with forward-edge technology. From years of 2000, we have been distributing live-line measurement technology to test high voltage equipment.

Nowadays, we supply on-line monitoring system for Rotating machines, Oil-filled transformers, Cables, Dry-type transformers, Distribution panels. Also, we supply engineering service for these assets to diagnose the insulation status.

Every On-line monitoring needs total engineering and diagnostic techniques and should be considered with electrical, chemical, mechanical, physical, environmental and thermal status together with failure mechanism. The worldwide trend is to install sensors to all high voltage equipment and test in live-line and diagnose every 6 month or 1 year. On-line monitoring system may be installed if any insulation show failure sign.

Main issues are proper sensor, measuring techniques and monitoring system. All techniques are to be economical and technically-proven.

We use leading technology in the world and try to supply with economic system. And, besides, providing just simple data for total diagnostic techniques. We will be your guiding light for your important assets
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Main insulation state
- Monitors partial discharges in transformer insulation
- Identifies defect type by correlation of partial
discharges intensity and type of the revealed defect
with chromatography data
Bushing insulation state
- Monitors bushing tan delta, capacitance and conduction
currents
- Monitors partial discharges in HV bushings
Asymmetry of Phase windings impedance
- Monitors the transformer neutral current indicating asymmetry in the windings impedance,
which occurs when windings deformation as result of short circuit currents
Efficiency of Cooling system
- Monitors temperature difference between the top and the bottom parts of the transformer tank along with
the ambient temperature and load
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