Insulation monitor for IT distribution system
AUX | 230 Vac |
---|---|
OUTPUT | 1 relay with SPDT contact |
THRESHOLDS | 20âŠ200 kohm |
FORMAT | 4 DIN modules |
INPUT | 24...400 Vac |
TYPE | Insulation monitor for IT distribution system |
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Insulation monitor for direct current network
AUX | 230 Vac |
---|---|
OUTPUT | 1 relay with SPDT contact |
THRESHOLDS | 20âŠ200 kohm |
FORMAT | 4 DIN modules |
INPUT | 100...160 Vdc |
TYPE | Insulation monitor for direct current network |
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Insulation monitoring for use in medical environment line 230 V
AUX | 230 Vac |
---|---|
OUTPUT | 1 relay with SPST-NO contact (insulation alarm) + 1 relay with SPST-NO contact (temperature or maximum demand alarm) |
THRESHOLDS | 50âŠ500 kohm |
FORMAT | 4 DIN modules |
INPUT | 230 V |
TYPE | Insulation monitoring for use in medical environment line 230 V |
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INPUT
Connection: insulation transformer Iso TV (NT699)
Network voltage: 230V
Rated frequency: 50Hz
Working frequency: 47...63Hz
Insulation measuring circuit current: †100”A
External VT temperature: Pt100 2-wire resistance bulb
Current: connection by CT/5A
Rated burden input current: †0,5VA
Input impedance: > 100kΩ
Measuring voltage: < 15V
DISPLAY
Display type: LCD
Digit height: 5mm (2 lines x 8 digit)
Measurement display2
: subdivided on 7 pages
resistance or impedance towards ground + insulation TV temperature
resistance towards ground1+ capacity towards ground1
voltage + frequency
current
active power + apparent power
apparent power demand + apparent power max. demand
phase with lowest impedance towards ground + presence of remote repeaters
1 present just if you select the impedance towards ground display
2 measurements referred to the secondary winding of the external insulation VT
ALARMS DISPLAYS
Insulation pre-alarm: blinking yellow LED
Insulation alarm: On yellow LED
Temperature and / or power pre-alarm: blinking yellow LED
Temperature and / or power alarm: On yellow LED
ANOMALIES DISPLAYS
no measuring voltage
connection breakdown to the equipotential junction
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Used in connection with Iso D4-Z (NT688)insulation monitor for a continuous control ofthe insulation towards groundPrimary voltage 230VSecondary voltage 230VRated output 1,5 â 3 â 5 â 7,5 â 10kVAAccording to EN/IEC 61558-2-15: âParticular requirements for isolatingtransformers for the supply of medical locationsâ Sensor to detect the temperature (Pt100 resistance bulb)
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