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INSULATION RELAY AC DC AD UC |
| ยี่ห้อ: DOLD GERMANY |
| โมเดล : RN5897 |
- Preventive fire and system protection
- Detection of symmetric and asymmetric insulation faults
- Quick fault localisation through earth fault detection to L+ and L-
- Universal in non-earthed AC, DC, AC/DC up to 300 V or more
- Easy adjustment of response values and setting parameter via rotational switch and menu display
- Suitable for large leakage capacitances up to 1000 µF
- Optimised reaction time for large leakage capacitances
- Monitoring also with voltage-free mains
- Measuring circuit L(+)/L(-) broken wire detection (can switched off)
- Protective conductor PE1/PE2 broken wire detection (can't switched off)
- Insulation monitoring according to IEC/EN 61557-8 • With connection facility of an external coupling device RP 5898 for voltages up to 1000 V
- Trigger output for insulation fault locating system
- 2 separate adjustable response thresholds (using e.g. for pre-Alarm and Alarm)
- Setting range of 1st response value (Pre-Alarm): 20 kΩ … 2 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 max 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
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