ISOMETER® isoCHA425

Monitoring the insulation resistance for DC charging stations according to CCS or CHAdeMO
Detection of asymmetrical insulation faults in the DC system voltage range between 50 V und 400 V within 1 s
Detection of symmetrical insulation faults within 10 s
Measurement of the system voltage (true RMS) with undervoltage and overvoltage detection
Measurement of DC system voltages to earth (L+/PE and L-/PE)

The ISOMETER® monitors the insulation resistance RF for DC fast charging stations according to CHAdeMO standard or according to Combined Charging System (CCS) for nominal system voltage ranges between DC 0 V and 400 V.

Asymmetric insulation faults are reported with a response time ≤ 1 second. Symmetrical insulation faults within 10 seconds. The maximum permissible system leakage capacitance C_e is 5 μF.

In order to meet the requirements of applicable standards, customised parameter settings must be made on the equipment in order to adapt it to local equipment and operating conditions.

Please heed the limits of the range of application indicated in the technical data. Any use other than that described in this manual is regarded as improper.

Questions? Contact us!

Monitoring the insulation resistance for DC charging stations according to CCS or CHAdeMO
Detection of asymmetrical insulation faults in the DC system voltage range between 50 V und 400 V within 1 s
Detection of symmetrical insulation faults within 10 s
Measurement of the system voltage (true RMS) with undervoltage and overvoltage detection
Measurement of DC system voltages to earth (L+/PE and L-/PE)

The ISOMETER® monitors the insulation resistance RF for DC fast charging stations according to CHAdeMO standard or according to Combined Charging System (CCS) for nominal system voltage ranges between DC 0 V and 400 V.

Asymmetric insulation faults are reported with a response time ≤ 1 second. Symmetrical insulation faults within 10 seconds. The maximum permissible system leakage capacitance C_e is 5 μF.

In order to meet the requirements of applicable standards, customised parameter settings must be made on the equipment in order to adapt it to local equipment and operating conditions.

Please heed the limits of the range of application indicated in the technical data. Any use other than that described in this manual is regarded as improper.

Questions? Contact us!

Features

Monitoring of the insulation resistance RF of DC charging stations in accordance with the CHAdeMO standard or Combined Charging System (CCS).
CHAdeMO (Mode CHd):
– Maximum system leakage capacitance 1.6 μF per conductor
– Detection of insulation faults in the system voltage range from 50 V to 400 V
– Response for time one-pole insulation faults R_FU:
• R_FU ≤ 100 kΩ: max. 1 s
• 100 kΩ < R_FU ≤ 2 MΩ: max. 10 s
– Response time for two-pole insulation faults R_FS: max. 10 s
CCS (Mode dc):
– Detection of insulation faults up to 2 MΩ
– Maximum system leakage capacitance C_e: 5 μF
– Response time tan at C_e ≤ 5 μF or R_F ≤ 100 kΩ: max. 10 s
• Measuring the system leakage capacitance C_e
• Measuring the nominal system voltage U_n (true RMS) with undervoltage/overvoltage detection
• Measuring the residual voltages U_L1e (between L+ and earth) and U_L2e (between L– and earth)

Selectable start-up delay, response delay and delay on release
Two separately adjustable response value ranges from 5…250 kΩ (prewarning, alarm)
Alarm output via LEDs (‘AL1’, ‘AL2’), display, and alarm relays (‘K1’, ‘K2’)
Automatic device self test with connection monitoring
Selectable N/C or N/O relay operation
Measured value indication via multi-functional LC display
Activatable fault memory
RS-485 (galvanically isolated) including the following protocols:
– BMS (Bender measuring device interface) for the data exchange with other Bender
devices
– Modbus RTU
– IsoData (for continuous data output)
Password protection against unauthorised changing of parameters
Stop mode to disable the measuring pulse generator

Applications

DC charging stations for electric vehicles according to CCS or CHAdeMO