Osung Mega Power Product - On-Line Cable Monitoring System

Automatic On-Line Cable Monitoring system for ( high ) medium voltage cable (AOLCM-S)
AOLCM-S (Fixed Installation Type)

For Unarmoured Cable (Size: W900 x D600 x H2,350mm)	For armoured Cable (Size : W3,200 x D600 x H2,350mm)

2. What's the OLCM
This is abbreviation of On-Line Cable Monitor,
as "Insulation monitoring system for high voltage cable on energized(Live Line) condition“.

3. Types of OLCM-S
   1) Fixed type : AOLCM-S (Automatic OLCM)
   2) Semi fixed type :AHPOLCM-S (Automatic half portable OLCM-S)

4. Characteristics of OLCM-S
   1) Becoming free from danger of men and electric accident
         Everybody is safe from man and electric accident cause nobody and nothing do not touch cable
         directly when measuring.
  2) It is possible to save employee and time
          Becoming to measure automatically from computer while it is supplying power .
  3) Protection from sudden cable insulation destruction in advance
         Protection of cable insulation in advance through measuring everyday by using computer.
  4) It is safe from electric distribution system
        Design is based on user's grounding system and using grounding line as a signal source line.
  5) It is very useful for electric customer which is possible to be damaged of sudden blackout.

5. Voltage line and grounding type which is possible to apply
    1) Voltage line : Medium Voltage(2~7kV), High Voltage(7~33kV), etc
    2) Bus grounding type : All of grounding method   (Direct, Resistance grounded, Non-grounded, Etc)
    3) Grounding method of cable sheath which is possible to apply : Single Point bonding
            (Solid bonding, multiple bonding are impossible to apply)

6. Measurable target of OLCM-S

Item ofItem of Measurement	Symbol	Range of Measurement	Target of Monitoring
Sheath layer	RS	0~4,000Kohm	Cable's sheath or external insulation
Status of terminal connection kit	-	Statistics process method (When sheath layer is good)	Terminal and connection kit in of cable

      1) Detection of leakage-current component which is flowing into earth through sheath of cable.
       2) Detection of DC leakage-current component which is flowing between earth and sheath, as injecting
           DC signal voltage into sheath of cable.
      3) With leakage-current is detected by result like above, monitoring about sheath layer's insulation and
          terminal connection kit in of measurable target cable .

8. AOLCM-S's block diagram(3~33kV)
AOLCM-S' block diagram

9.Standard specification of several device

When need to monitor from a distance, it is possible to make remote control system using LAN Network.