INSULATION GUARD FOR NON-GROUNDED AC NETWORKS KPM161x
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INSULATION GUARD FOR NON-GROUNDED AC NETWORKS KPM161x • Direct connection up to 690V line voltage, up to 1.4kV with HV adapter CH163/1,4 • Monitoring during both live and standby conditions • For use in land, marine, offshore, sub-sea and ocean floor installations • Complies with IMCA D 045 Code of Practice • ”Megger” - safe to 1.4kVDC when aux power is OFF • Immune to earth capacitance and voltage surges • Analogue output proportional to meter reading (F-version) Specifications Auxiliary Supply: Optional Voltage: Supply tolerance: Power rating: Contact rating: Analogue Output: F-versions The digitally controlled KPM161x series monitors insulation level between a non-grounded (IT) AC mains and its protective earth, regardless of whether the mains is live or non-live (standby). The unit is for land, marine, offshore, sub-sea and ocean floor use. An AC or DC auxiliary voltage is required for the unit, if powered from a separate source the network can also be monitored during standby conditions. Only ONE KPM161x can be connected to each IT-system. The ohmmeter and the triple-zone status LEDs give at a glance the clear safety message: Temperature: Weight: Front protection: - ALARM (red zone) - WARNING (yellow zone) - HEALTHY (green zone) General INTELLIGENT SETTING ASSISTANCE KPM161x has a built-in Assistance tool for setting/verification of the trip levels and the analogue output. 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 (the blue LED will be lit in this mode). 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. IDV MEASURING PRINCIPLE Insulation is measured between the complete galvanically interconnected AC network and its protective earth. The unit injects a DC voltage 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 any normal kind of load attached to theAC network. Trip levels and delays are settable on unit rear. 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. Without any movement of potmeters, the meter will revert to normal Insulation Monitoring Mode after approximately 10 seconds. MEGGER SAFE When auxiliary power is OFF the unit input is automatically protected against “megger” test voltages up to 1.4kVDC, and incorrect measurements caused by the unit’s input impedance are avoided. 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. OUTPUTS All F versions have an isolated analogue output proportional to meter reading. If output is used for remote meter reading, we recommend 0-1mA for the slave indicator. The KPM161x range is designed to comply with specification IMCA D 045 “Code of Practice for the Safe Use of Electricity Under Water” issued by IMCA. The unit meets EN 61010-1 Cat. III, Pollution degree 2 and the relevant environmental and EMC tests specified in EN 61326-2-4 to comply with the requirements of the major Classification Societies. NOTE Special versions of the KPM161x are available as: KPM161xM series - Insulation Guards with DC detection function, protected against high-energy DC voltage imposed on the monitoredAC supply. KPM261x series - Insulation Guards with measuring loop continuity monitoring. Norway Denmark United Kingdom www.megacon.com ELECTRONIC CONTROL AND INSTRUMENTATION Page: 1 of 4 REF: Datasheet.KPM161x - REV: 2.07/01.2019 © All rights reserved to Megacon Megacon reserves the right to make any changes to

INSULATION GUARD FOR NON-GROUNDED AC NETWORKS This unit is used for hospital, industrial, marine and offshore installations. Start of monitoring function is delayed when auxiliary power is switched on. (default 5secsdelay) The unit has minimum 150 mS detection time for any insulation fault. Model Latch Output Fail Safe - X XX -X XX Adjustments Trip level Delay Direct connection up to 690V line voltage. Up to 1,4kV via HV adaptor CH163/1,4. Coloured sectors show recommended areas ofsettings: -Indicates alarm tripzone - Indicates warning trip zone -Indicates healthy zone Output...

Description Relay Operation Scale range: 0-1000kQ - oo (>6MQ) High Voltage Adaptors up to 1,4kVAC for KPM161x series - HV Adaptor for AC Insulation Guards - CH163x series, up to 1400V Line Voltage live or non-live (standby) - Creates safety barrier from live HT network to LV switchboard - Limits measuring output signal to safe levels - No restrictions on distance between adapter and LV switchboard Voltage Adaptors CH163x series are used for Insulation Guard KPM161x when the monitored line voltage is higher than 690VAC. These adapters are a passive low-pass filter for use in 50,60 or 400Hz...

INSULATION GUARD FOR NON-GROUNDED AC NETWORKS + ~ ~ Relays shown de-energised, a fail-safe relay energises when unit is powered. Reset (only latching versions) KPM161F, KPM161GF, KPM161F3, KPM161GF3, KPM161F-SKK and KPM161GF-SKK have an analogue output proportional to meter reading. (Special outputs are available on request) KPM161x AC Aux Supply 1 (Standard) 9 OR DC Aux Supply (Optional 48 or 110VDC) Add suffix from table below to type designation to specify output required: O/P1 0 - 10mA O/P6 N/A O/P2 0 - 20mA O/P7 N/A O/P3 4 - 20mA O/P8 0 - 10VDC O/P4 N/A O/P9 N/A O/P5 N/A O/P10 N/A 13...