Insulation Monitoring Device ISOEV425 D44AGH420, AGH420 ISOMETER DC SOLAR CHARGE

Description: See photos for example. Bender Insulation Monitoring Device ISOEV425D44AGH420, AGH420. Pulled from working equipment upgrades Ground-fault monitoring device for AC 690 V and DC 1000 V IT systems Monitoring of DC charging stations for electric and hybrid vehicles Settings in accordance with IEC 61851-23 Parameter settings by the customer not required The ISOMETER® of the isoEV425 series monitors the insulation resistance of ungrounded DC-charging stations for electric vehicles (IT systems) DC 0…1100 V DC from the charging station to the motor (AC 0…793 V). Due to a separate supply voltage de-energized systems can also be monitored. Features Monitoring for DC charging stations (mode 4 acc. to IEC 61851-23) for charging of electric vehicles Measurement of the mains voltage (r.m.s.) with undervoltage and overvoltage detection Measurement of DC voltages system to earth (L+/PE and L-/PE) Automatic adaptation to the system leakage capacitance up to 5 μF or 20 μF Automatic device self test with connection monitoring Selectable start-up delay, response delay and delay on release Two separately adjustable response value ranges of 1kΩ …500 kΩ (Alarm 1, Alarm 2) Alarm signalling via LEDs (AL1, AL2), a display and alarm relays (K1, K2) N/C operation or N/O operation of the relays selectable Measured value indication via multifunctional LCD Fault memory can be activated RS-485 (galvanically isolated) including the following protocols: – BMS interface (Bender measuring device interface) for data exchange with other Bender components – Modbus RTU – IsoData (for continuous data output) Password protection to prevent unauthorised parameter changes Product description The ISOMETER® of the isoEV425 or isoEV425HC series monitors the insulation resistance of unearthed AC/DC main circuits (IT systems) with nominal system voltages of 3(N)AC, AC/DC 0...690 V or DC 0...1000 V. The main application areas are unearthed DC charging stations (mode 4 acc. to IEC 61851-23) for electric vehicles (IT systems) with nominal voltages of DC 0...1000 V. DC components existing in 3(N)AC, AC/DC systems do not influence the operating characteristics, when a minimum load current of DC 10 mA flows. A separate supply voltage allows deenergised systems to be monitored as well. The maximum permissible system leakage capacitance Ce is 5 μF (for isoEV425) and 20 μF (for isoEV425HC). The ISOMETER® is always used in conjunction with the coupling device AGH420. Application • DC charging stations for electric vehicles according to IEC 61851-23 Function The currently measured insulation resistance is indicated on the LC display. The ISOMETER®s are factory-set to two response values 100/500 kΩ. If the reading is below the selected response value, the response delay “ton” begins. Once the response delay “ton” has elapsed, the alarm relays “K1/K2” switch and the alarm LEDs “AL1/AL2” light up. By means of the two isolated response values/alarm relays, messages can be evaluated separately. If the insulation resistance exceeds the release value (response value plus hysteresis), the alarm relays switch back to their initial position. The point of fault L+, L- or the symmetrical insulation resistance is indicated on the display. In the menu, the alarm relays can also be assigned to the point of fault. By activating the fault memory, the alarm relays and alarm LEDs remain in alarm state until the reset button is pressed or the supply voltage is disconnected. The device functions can be checked using the test button. Parameters are assigned to the device via the LCD and the control buttons on the front panel, as well as the BMS or Modbus RTU Interface. Connection monitoring The connections to the electrical system (L1/+/L2/-) and earth (E/KE) as well as the connecting wires from the Isometer® to the coupling device are periodically monitored every 24 hours after pressing the test button and connecting the supply voltage. In case of interruption of a connecting wire , the alarm relay K2 switches, the LEDs ON//AL1//AL2 flash and a message appears on the LC display as follows: “E.0x” for a fault in the connecting wires between both devices or system fault, “E.02” for a fault in the connecting wires to the system, “E.01” for a fault in the connecting wires to PE. After eliminating the fault, the alarm relays return to their initial position either automatically or by pressing the reset button. Measurement method The ISOMETER® isoEV425 works with different measurement methods adapted to the application with a maximum response time of 10 s.

Price: 285.85 USD

Location: Soddy Daisy, Tennessee

End Time: 2024-01-20T23:45:49.000Z

Shipping Cost: N/A USD