ISOMETER® IRDH275BM-7 with AGH675S-7…
- Insulation monitoring device for AC and DC IT systems
- Application for drives including medium voltage converters up to 15.5 kV
- In combination with AGH675S-7 and AGH675S- MV15
- History memory with real-time clock for storing alarm messages with date and time
- Galvanically isolated RS-485 interface for data exchange
The device combination ISOMETER® IRDH275BM-7 and the coupling device AGH675S-7 or the coupling devices AGH675S-7MV15 is designed to monitor the insulation resistance of unearthed medium voltage systems (IT systems). It is suitable for universal use in 3AC, combined AC/DC and DC systems. AC systems may include extensive DC-supplied loads. The AMPPlus measurement method meets the particular requirements of modern power supplies which often include rectifiers, converters, thyristor-controlled DC drives and directly connected DC components. Taking the system leakage capacitances into account, the IRDH275BM-7 automatically adapts itself to the existing system conditions in order to optimise the measuring time.
- Insulation monitoring device for AC and DC IT systems
- Application for drives including medium voltage converters up to 15.5 kV
- In combination with AGH675S-7 and AGH675S- MV15
- History memory with real-time clock for storing alarm messages with date and time
- Galvanically isolated RS-485 interface for data exchange
The device combination ISOMETER® IRDH275BM-7 and the coupling device AGH675S-7 or the coupling devices AGH675S-7MV15 is designed to monitor the insulation resistance of unearthed medium voltage systems (IT systems). It is suitable for universal use in 3AC, combined AC/DC and DC systems. AC systems may include extensive DC-supplied loads. The AMPPlus measurement method meets the particular requirements of modern power supplies which often include rectifiers, converters, thyristor-controlled DC drives and directly connected DC components. Taking the system leakage capacitances into account, the IRDH275BM-7 automatically adapts itself to the existing system conditions in order to optimise the measuring time.
Features
- Insulation monitoring for drives including medium voltage converters up to 15.5 kV
- Two separately adjustable response values 100 kΩ…10 MΩ
- AMPPlus measurement method (European patent: EP 0 654 673 B1)
- Automatic adaptation to the system leakage capacitance
- Info button to display device settings and the system leakage capacitance
- History memory with real-time clock to store alarm messages with date and time stamp
- BMS interface (Bender Measuring Device Interface) for communication with other Bender devices (RS-485 electrically isolated)
- Current output 0(4)…20mA (electrically isolated) analogously to the measured insulation value
- Self monitoring with automatic alarm
- Automatic self test, selectable
- Connection for external kΩ indication
- Test and reset button
- Connection external test and reset button
- Two separate alarm relays with two potential-free changeover contacts
- N/O or N/C operation, selectable
- Backlit two-line plain text display
- Remote setting of specific parameters via Internet (option; COM465IP with at least Option C required)
Applications
- AC, DC or AC/DC medium voltage systems
- AC/DC medium voltage systems with directly connected DC components, such as rectifiers, converters, and thyristor-controlled DC drives
ISOMETER® IRDH275BM-7 with AGH675S-7… Variant(s)
| Type | Nominal voltage Un | Supply voltage US | Cable length | Art. No. |
|---|---|---|---|---|
| IRDH275BM-7 | -- | AC 19.2…55 V / DC 19.2…72 V | -- | B91065120 |
| AGH675S-7-2000 | AC/DC 0…7.2 kV, 0…460 Hz | -- | 2000 mm | B913061 |
| AGH675S-7-500 | AC/DC 0…7.2 kV, 0…460 Hz | -- | 500 mm | B913060 |
| AGH675S-7MV15-500 | AC/DC 0…15.5 kV, 0…460 Hz | -- | 500 mm | B913058 |
Optional Accessories for ISOMETER® IRDH275BM-7 with AGH675S-7…
External kΩ measuring instruments (20 mA)
| Type | SKMP *2 | Art. No. |
|---|---|---|
| 9620-1721 | 2,8 MΩ | B986849 |
Downloads for ISOMETER® IRDH275BM-7 with AGH675S-7…
| Name | Category | Size | Language | Timestamp | D-/B-Number |
|---|---|---|---|---|---|
| UKCA - AGH | Declarations of Conformity | 122.7 KB | 2023/11/2222.11.2023 | ||
| AGH | CE Declarations of conformity | 143.8 KB | 2023/11/2222.11.2023 | ||
| IRDH275 - 375 - 575 | CE Declarations of conformity | 95.3 KB | 2024/02/0707.02.2024 | ||
| IRDH275BM-7 | Manuals | 2.9 MB | DE | 2020/09/1111.09.2020 | D00123 |
| IRDH275BM-7 | Manuals | 2.9 MB | EN | 2020/09/1111.09.2020 | D00123 |
| IRDH275BM-7 mit AGH675S-7... | Datasheets | 409.6 KB | DE | 2019/09/1010.09.2019 | D00123 |
| IRDH275BM-7 with AGH675S-7... | Datasheets | 363.1 KB | EN | 2019/10/0101.10.2019 | D00123 |
| IRDH275BM-7 con AGH675S-7... | Datasheets | 361.7 KB | ES | 2019/09/1010.09.2019 | D00123 |
| IRDH275BM-7 | Datasheets | 514.8 KB | ZH | 2019/05/1313.05.2019 | D00123 |
| IRDH275BM-7 | Quickstarts | 889.3 KB | DE | 2021/03/0202.03.2021 | D00123 |
| IRDH275BM-7 | Quickstarts | 889.3 KB | EN | 2021/03/0202.03.2021 | D00123 |