ISOMETER® isoPV1685DP

• Insulation monitoring device for AC 1000 V and DC 1500 V IT systems

• Application main circuits with connected frequency converters

• Separately adjustable response values 200 Ω…1 MΩ

• Display and control function for EDS insulation fault location systems

• Can be extended to operate as an insulation fault location system

The ISOMETER® isoxx1685DP is used for insulation monitoring of extensive IT systems. The specially developed measurement method monitors the insulation resistance also in installations where extremely high system leakage capacitances against earth exist due to interference suppression methods. Adaptation to system-related high leakage capacitances also occurs automatically.

The ISOMETER® iso1685DP generates locating current pulses required for insulation fault location. That allows the localisation of the insulation fault using permanently installed or mobile insulation fault locators.

Features

- ISOMETER® for IT AC systems with galvanically connected rectifiers or inverters and for IT DC systems (IT = unearthed systems)

- Automatic adaptation to the existing system leakage capacitance

- Combination of AMP Plus and other profile-specific measurement methods

- Two separately adjustable response value ranges of 1 kΩ…10 MΩ for Alarm 1 and Alarm 2

- High-resolution graphical LC display

- Connection monitoring (monitoring of the measuring lines)

- Automatic device self test

- Graphical representation of the insulation resistance over time (isoGraph)

- History memory with real-time clock (buffer for three days) for storing 1023 alarm messages with date and time

- Freely programmable digital inputs and outputs

- Remote setting via the Internet or Intranet (COMTRAXX® gateway)

- Worldwide remote diagnosis via the Internet (made available by Bender Service only)

- RS-485 interface for data exchange to other Bender devices

Applications

- Extensive systems up to AC 2000 V/DC 3000 V which are designed as IT systems

- Low-resistance applications from 20 Ω

ISOMETER® iso685-D-P

• Predefined measurement profiles

• Reliable measurement of insulation resistance, voltage, capacitance and frequency

• Integrated web server

• Modbus TCP/RTU

• History memory

The ISOMETER® is an insulation monitoring device for IT systems in accordance with IEC 61557-8 and IEC 61557-9. It is universally applicable in AC, 3(N)AC, AC/DC and DC systems. AC systems may include extensive DC-supplied loads (such as rectifiers, inverters, variablespeed drives).

In combination with the insulation fault locators of the EDS44x series or the appropriate measuring current transformers, an insulation fault location system can be set up with the iso685-D-P.

This device variant features a high-resolution graphic LC display and operating controls for direct operation of the device functions.

Features

- ISOMETER® for IT AC systems with galvanically connected rectifiers or inverters and for IT DC systems (IT = unearthed systems)

- Automatic adaptation to the existing system leakage capacitance

- Combination of AMPPlusand other profile-specific measurement methods

- Two separately adjustable response value ranges of 1 kΩ…10 MΩ for Alarm 1 and Alarm 2

- High-resolution graphical LC display

- Connection monitoring (monitoring of the measuring lines)

- Automatic device self test

- Graphical representation of the insulation resistance over time (isoGraph)

- History memory with real-time clock (buffer for three days) for storing 1023 alarm messages with date and time

- Current or voltage output 0(4)…20 mA, 0…400 μA, 0…10 V, 2…10 V (galvanically separated), which is analogous to the measured insulation value of the system

- Freely programmable digital inputs and outputs

- Remote setting via the Internet or Intranet (Webserver/Option: COMTRAXX® gateway)

- Worldwide remote diagnosis via the Internet (made available by Bender Service only)

- RS-485/BS (Bender sensor bus) for data exchange with other Bender devices

- ISOnet: Internal separation of the ISOMETER® from the IT system to be monitored (e.g. if several IT systems are interconnected)

- BCOM, Modbus TCP/RTU and web server

- Locating current injection for selective insulation fault location

- Indication of the insulation faults selectively located by the EDS system

- Parameter setting of EDS systems

- Customer-specific texts for each measuring channel

Application

- AC, DC or AC/DC main circuits

- AC/DC main circuits with directly connected DC components, such as rectifiers, converters, variable-speed drives

- UPS systems, battery systems

- Heaters with phase control

- Systems including switch-mode power supplies

- IT systems with high leakage capacitances

- Installations with insulation fault location

ISOSCAN® EDS440

- Automatic insulation fault location

- Application main circuits

- 12 measuring channels for measuring current transformers

- CT connection monitoring

- Universal system concept

The insulation fault locators ISOSCAN® EDS440 are used in connection with the ISOMETER® iso685-D-P or the locating current injector PGH to locate insulation faults in unearthed power supply systems (IT systems).

The insulation fault locators ISOSCAN® EDS440 detect locating current signals generated by the insulation monitoring device iso685-D-P or the locating current injector PGH and evaluate them correspondingly. Up to 12 measuring current transformers can be connected to an EDS440. In total, up to 50 insulation fault locators can be connected via an RS-485 interface (BS bus protocol) and thereby up to 600 outgoing circuits can be monitored.

Features

- Universal system concept

- Modular design, therefore easily adjustable to the given circumstances

- Measuring current transformers available in various sizes and versions

- CT connection monitoring

- 12 measuring channels for measuring current transformer series CTAC…, WR…

- Optional extension by 12 relay channels

- Fault memory behaviour selectable

- Up to 50 EDS insulation fault locators in the system, 600 measuring channels

- Response sensitivity: 2…10 mA

- AC residual current measurement with configurable response value

- Two alarm relays with one N/O contact each

- N/O or N/C operation selectable

- External test/reset

- Central display of faulty outgoing circuits

- Serial interface RS-485, BS bus address range 2…79, Modbus RTU

- Connection to higher-level control and visualisation systems possible

Applications

- Insulation fault location in AC, 3AC and DC IT systems

- Main circuits and control circuits in industrial plants and ships

- Diode-decoupled DC IT systems in power plants

- Systems for medical locations

ISOMETER® isoRW425

• Insulation monitoring device for AC and DC IT systems

• Application control circuits in railway vehicles according to EN 50155

• Insulation impedance measurement (Z mode) for 50 Hz or 60 Hz

• Automatic adaptation to the system leakage capacitance up to 300 μF

• Measurement of the nominal system voltage (RMS) with undervoltage and overvoltage detection

The ISOMETER® monitors the insulation resistance (R mode) or the insulation impedance (Z mode) of unearthed AC/DC main circuits (IT systems) with nominal system voltages of 3(N)AC, AC, AC/DC or DC 0…440 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. Due to the separate supply voltage, de-energised systems can also be monitored. The maximum permissible system leakage capacitance C_e is 300 μF in R mode and 1μF in Z mode.

Features

• Monitoring of the insulation resistance (R mode) or the insulation impedance (Z mode) of unearthed 3(N)AC, AC and

• DC systems (IT systems) with galvanically connected rectifiers or inverters

• Insulation impedance (Z mode) for 50 Hz or 60 Hz

• Measurement of the nominal system voltage (RMS) 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 300 μF in R mode and 1μF in Z mode

• Automatic device self test with connection monitoring

• Selectable start-up delay, response delay and delay on release

• Two separately adjustable response ranges of 1…990 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 selectable

• Measured value indication via multifunctional LCD

• Fault memory can be activated

• RS-485 (galvanically isolated) interface 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 changes of parameters

Applications

• AC control circuits in industry, mechanical engineering, power stations, elevators, automation systems and railway systems in accordance with EN 50155

• AC control and auxiliary circuits in accordance with DIN EN 60204-1 “Electrical equipment of machines”, IEC 60204-1, EN 60204-1

• AC auxiliary circuits in accordance with DIN VDE 0100-725

• Smaller AC IT systems such as lighting systems, mobile generators

LINETRAXX® SmartDetect RCMS

• 4 channels in one compact housing

• AC, pulsed DC, or AC/DC sensitive measuring for each channel

• Frequency analysis up to the 400th harmonic

• Configurable frequency response

• Communication via various interfaces

The LINETRAXX® SmartDetect RCMS410/RCMS425-L/RCMS425-D is an AC, pulsed DC, and smooth DC sensitive residual-current monitor for earthed power-supply systems. It measures residual currents between 2 mA and 70 A with direct voltage as well as alternating voltage in a frequency range from 15 Hz to 20 kHz.

Corresponding measuring-current transformers (e. g. CTUB100 and CTAC series) must be connected to the residual current inputs.

Individual response values for pre-warning and main alarm can be set for each channel, and the response value can be chosen from the RMS value of AC and DC or the individual AC and DC components.

The alarm is indicated by alarm LEDs (RCMS410 and RCMS425-L) or on an TFT display (RCMS425-D). Alarm signalling is also possible via the digital outputs and via the Modbus RTU interface.

Despite its small size and compact design, the RCMS410 is a top performer. It can be operated with a DC 24 V power supply.

All devices have variety digital inputs and outputs, as well as an analogue output.

The communication with higher-level systems . The parameters required for electrical systems can be set either via Modbus RTU or via the NFC interface and the Bender Connect App. It is also possible to preset the operating parameters ex works.

Various functions can be added to the devices using function modules.