DOLD RN 5897 Terjemahan Petunjuk Asli

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Monitoring Technique

VARIMETER IMD

Insulation monitor

RN 5897

Product Description

The insulation monitor RN 5897 of the VARIMETER IMD family provides

best and up to date insulation monitoring of modern IT systems in an op-

timum and state of the art way fulfilling the relevant standards. The device

can be used in the most flexible way for AC, DC and AC/DC systems even

with large leakage capacity to earth (PE). The adjustment of the setting

values is simple and user friendly done on 2 rotary switches on the front of

the device. Via display and LEDs the measured value, device parameters

and device status are indicated easy to read. With a sealable transparent

cover the device is protectet against manipulation.

Function Diagram

U H

Earth fault

Hysteresis function

21-24

Open circuit operation

21-22

21-24

De-energized on trip

21-22

11-14

Open circuit operation

11-12

11-14

De-energized on trip

11-12

Manual reset

Reset

21-24

Open circuit operation

21-22

21-24

De-energized on trip

21-22

11-14

Open circuit operation

11-12

11-14

De-energized on trip

11-12

All Technical Data in this list relate to the state at the moment of edition. We reserve the right

for technical improvements and changes at any time.

of the original instructions

Your Advantages

• Preventive fire and system protection

• Detection of symmetric and asymmetric insulation faults

• Quick fault localisation through selective earth fault detection to L+

and L-

• Universal application in non-earthed AC, DC, AC/DC networks

up to 300 V

• Easy adjustment of response values and setting parameter via

rotational switch and menu display

• Suitable for large leakage capacitances up to 300 µF

• Optimised reaction time for large leakage capacitances

• Monitoring also with voltage-free mains

• Measuring circuit L(+)/L(-) with broken wire detection (can be switched off)

• Protective conductor PE1/PE2 with broken wire detection

(can't be switched off)

• No additional coupling device required

Features

• Insulation monitoring according to IEC/EN 61557-8

• 2 separate adjustable response thresholds

(using e.g. for pre-Alarm and Alarm)

• Setting range of 1st response value (Pre-Alarm): 10 kΩ ... 1 MΩ

• Setting range of 2nd response value (Alarm): 1 kΩ ... 250 kΩ

• 2 changeover contacts für insulation failures-Pre-Alarm and -Alarm

• Energized or de-energized on trip can be selected for indicator relay

• Display for indication of measured value, device parameters and

device status

• Setting the maximum leakage capacitance to shorten the response time

• Automatic and manual device self-test

• Alarm storage selectable

• Protection against manipulation by sealable transparent cover

• External control input for combined Test-/Reset-button

• 3 wide voltage input for auxiliary voltage

• Width 52.5 mm

Approvals and Markings

Applications

Insulation monitoring of:

• Non-earthed AC, DC, AC/DC networks

• UPS systems

• Networks with frequency inverters

• Battery networks

• Networks with direct current drives

• Hybrid and battery-powered vehicles

• Mobile generator sets

M11593

Translation

AC/DC

Canada / USA

06.05.21 en / 393A