KPM465x
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INSULATION "MEGGER" FOR INACTIVE ELECTRICAL SYSTEMS KPM465x • Non-stop "megging" of AC or DC non-gronded networks, pumps, emergency generators and thrusters during inactive (disconnected, idle or standby) condition • For maximum 690V system voltage • Triple-zone insulation monitoring, a must for preventive maintenance • Immune to earth spread capacitance • For use in land, offshore and marine systems • Analogue output proportional to meter reading (F-version) Application Specifications General Auxiliary Supply: Optional Voltage: Contact rating: Analogue Output: F-versions The digitally controlled KPM465x monitors insulation level between a non-live non-grounded (IT) system and its protective earth. This unit is used for land, offshore and marine installations for megging of any inactive equipment. When running, the centrifugal force and heat of windings will keep a machine dry. When machines is not running ambient humidity may condensate and form moisture traps, which, together with accumulated dust and contaminated deposits, may form leakage paths to earth. Temperature: Weight: Front protection: Idling operation interrupts general insulation monitoring and leaves machine insulation to degrade uncontrolled during a lasting outage. KPM465x can be connected to any kind of non-live electrical system, to monitor the general health during inactive operation. KPM465x will also detect any earth fault caused by break-down and flash-over carbon deposits or mechanical damage to windings and cabling. INTELLIGENT SETTING ASSISTANCE KPM465x has a built-in Assistance tool for setting/verification of the trip levels and the analogue output. An AC or DC auxiliary voltage is required for the unit. Only ONE KPM465x can be connected to each ITsystem. The ohmmeter and the triple-zone status LEDs give at a glance the clear safety message: When either the Warning or Alarm potmeter on the rear is operated by user, the meter goes into Assistance Mode and meter reading and analogue output will reflect the potmeter setting. - ALARM (red zone) - WARNING (yellow zone) - HEALTHY (green zone) How to set alarm levels: Firstly adjust potmeter fully clockwise (see that meter goes to the top), then adjust potmeter down to required Warning or Alarm setpoint. Without any movement of potmeters, the meter will revert to normal Insulation Monitoring Mode after approximately 10 seconds. IDV MEASURING PRINCIPLE Insulation is measured between the complete galvanically interconnected AC network and its protective earth. How to test analogue output signal: Adjust any trip level potmeter to activate Assistance Mode. Example: On a 4-20mA output, adjust potmeter fully anti clockwise for 4mAand fully clockwise for 20mA. The unit injects a DC measuring signal into the monitored system. The signal flows to ground via the path of the insulation fault, the level of flow indicates the insulation resistance. The measuring accuracy is not influenced by spread capacitance. The KPM465x range is designed to comply with specification AODC035 “Code of Practice for the Safe Use of Electricity Under Water” issued by IMCA. The KPM465x measures all phases just by connection to either line or neutral point. Start of monitoring function is delayed when auxiliary power is switched on (default 10 secs delay) to avoid false reading caused by initial charging of network spread capacitance.If powered from separate source there can be a stabilizing time if there is network spread capacitance. The unit meets IEC60092-504 and the relevant environmental and EMC tests specified in IEC60068/60092 and IEC61000/60533 respectively, to comply with the requirements of the major Classification Societies. OUTPUTS The unit has C/O relay outputs for Warning and Alarm. The Alarm relays are fail to safety configured. A trip LED flashes when the trip level is passed, the relay trips when the delay has elapsed. The timer resets if the fault is removed during countdown. Trip levels and delays are settable on unit rear. All F versions have an isolated analogue output proportional to meter reading. If output is used for remote meter reading, we recommend 0-1mAfor the slave indicator. Norway Denmark United Kingdom www.megacon.com ELECTRONIC CONTROL AND INSTRUMENTATION Page: 1 of 3 REF: Datasheet.KPM465x - REV: 1.06/11.2015 © All rights reserved to Megacon Megacon reserves the right to make any changes to the informat

INSULATION "MEGGER" FOR INACTIVE ELECTRICAL SYSTEMS Output table (example for 4-20mA) Range Adjustments WARNING: ALARM: Fail Safe Coloured sectors show recommended areas of settings: - Indicates alarm trip zone - Indicates warning trip zone - Indicates healthy zone Output table (example for 4-20mA) Range Adjustments WARNING: ALARM: Fail Safe Coloured sectors show recommended areas of settings: - Indicates alarm trip zone - Indicates warning trip zone - Indicates healthy zone Output table (example for 4-20mA) Range Fail Safe Adjustments WARNING: ALARM: Coloured sectors show recommended areas...

INSULATION "MEGGER" FOR INACTIVE ELECTRICAL SYSTEMS ~ Relays shown de-energised, a fail-safe relay energises when unit is powered. Reset (only latching versions) Main Supply Supply breaker Note: Use a N.C. auxiliary contact on the machine breaker to connect KPM465x for standby monitoring. SAFETY The unit is megger safe but megger will measure the internal resistance of approximately 1,7Mohm if unit is connected. The unit is not for live measuring but will not be damaged if network voltage is accidentally connected. Analogue Output KPM465HF, KPM465HGF, KPM465GF, KPM465LF, KPM465F and...