INSULATION GUARD FOR NON-GROUNDED AC NETWORKS KPM165x
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INSULATION GUARD FOR NON-GROUNDED AC NETWORKS KPM165x - 1

INSULATION GUARD FOR NON-GROUNDED AC NETWORKS KPM165x • Direct connection up to 500V line voltage, up to 25kV with HV adapter • Monitoring during both live and standby conditions • For use in land, marine, offshore and sub-sea 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 General Auxiliary Supply: Optional Voltage: Contact rating: Analogue Output: F-versions The digitally controlled KPM165x 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 and sub-sea 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 KPM165x 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 KPM165x 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. 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. 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 KPM165x range is designed to comply with specification IMCA D 045 “Code of Practice for the Safe Use of Electricity Under Water” issued by IMCA. 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. 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. OUTPUTS 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. SAFETY When a voltage adapter (ARx, ANx or CH163-5) is used the signal to terminals 4 and 6 on KPM165x is limited to a safe level, avoiding any dangerous voltage exposure to personnel. 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. Norway Denmark United Kingdom www.megacon.com ELECTRONIC CONTROL AND INSTRUMENTATION Page: 1 of 4 REF: Datasheet.KPM165x - REV: 1.05/11.2018 © All rights reserved to Megacon Megacon reserves the right to make any changes to

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INSULATION GUARD FOR NON-GROUNDED AC NETWORKS KPM165x - 2

Relay Operation Start of monitoring has a 30 secs delay. This unit is for marine, offshore, sub-sea and ocean floor use. It has a wide measuring range in order to detect degradation of insulation at its origin. An important feature is the unit’s unique inhibit function, controlled by the Load DistortionandEarth-capacitanceDetector(LDED). The LDED function differentiates between a true (resistive) ora false (capacitive) drop in insulation reading, and will maintain reliable and accurate insulation monitoring even if load switching or a major change in load spread capacitance cause meter...

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INSULATION GUARD FOR NON-GROUNDED AC NETWORKS KPM165x - 3

Description Relay Operation KPM165E1 & KPM165F1 - KPM165N1 & KPM165NF1 Start of monitoring has a 30 secs delay. This unit is for marine, offshore, sub-sea and ocean floor use. It has a wide measuring range in order to detect degradation of insulation at its origin. An important feature is the unit’s unique inhibit function, controlled by the Load Distortion and Earth-capacitance Detector (LDED). The LDED function differentiates between atrue (resistive) or a false (capacitive) drop in insulation reading, and will maintain reliable and accurate insulation monitoring even if load switching or...

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INSULATION GUARD FOR NON-GROUNDED AC NETWORKS KPM165x - 4

INSULATION GUARD FOR NON-GROUNDED AC NETWORKS ~ Relays shown de-energised, a fail-safe relay energises when unit is powered. Reset (only latching versions) KPM165HF, KPM165HGF, KPM165GF1, KPM165LF1, KPM165F1 and KPM165NF1 have an analogue output proportional to meter reading. (Special outputs are available on request) 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 4 NOTE: See below for correct connection NEUTRAL VOLTAGE INPUT LINE VOLTAGE INPUT R (L1)...

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