Bender EDS3090/-91/-92/-96 series

Bender EDS3090/-91/-92/-96 series

Intended use

The portable insulation fault location system EDS309… is used to locate insulation faults in IT systems. All variants are suitable for the measurement of residual currents in TN and TT systems. The EDS3096PG is particularly suitable for insulation fault location in electrically isolated systems.

Please observe the limits on the area of application stated in the technical specifications, as well as the measuring categories for the measuring clamps used. If, in the specific case, measuring current transformers other than the measuring clamps supplied are used with the EDS195P(M), adequate nominal insulation voltage must be ensured for the connection wires and transformer (overvoltage category, see Technical data).

Do not make any unauthorised changes to the device. Only use spare parts and optional accessories sold or recommended by the manufacturer.

Any other use than that described in this manual is regarded as improper.

Device features

Portable insulation fault location systems for IT systems AC 0…790 V, 42…460 Hz/DC 0…960 V or deenergised systems

Residual current measurement in TN/TT systems

Use in main and control circuits, photovoltaic systems

Measuring clamps 20/52 mm (115 mm optional)

Robust aluminium case, convenient to carry

Locating current injectors PGH18… with variable locating current 1…25 mA

Integrated locating voltage for deenergised systems (PGH186)

Insulation fault EDS195P(M)

Backlit LC display, 3 x 16 characters

Measuring clamps 20/52 mm included in the scope of delivery

Accumulator (delivered with a power supply unit)

Response value insulation fault location 2…10 mA for main circuits

Response value insulation fault location 0.2…1 mA for control circuits

Response value residual current measurement 10 mA…10 A

Selectable operating mode insulation fault location/residual current measurement

Function of the system components

The following system components are required for correct operation:

Locating current injector PGH18…

The PGH18… generates a defined locating current. The current depends on the insulation fault and the system voltage.

The PGH185 or PGH186 limits the locating current to maximum 25 mA or maximum 10 mA depending on the switch setting.

The PGH183 limits the locating current to maximum 2.5 mA or maximum 1 mA depending on the switch setting.

The PGH186 applies the locating current in electrically isolated IT systems or in IT systems with a system (voltage <50 ~V) using an integrated voltage source (DC 50 V).In

IT systems with a system voltage > 50 V the existing voltage in the system is used to drive the locating current.

Insulation fault locator EDS195P(M)

Insulation fault location (I_{Delta L}) (EDS mode) for use in IT AC or DC systems:

Either as a component of the portable equipment for insulation fault location EDS309…

Or as an additional insulation fault locator in permanently installed equipment for insulation fault location with IRDH575, iso685-x-P or isoxx1685xP or PGH1… as well as EDS4…

EDS195PM - only devices with the suffix "M" have the measuring signal output for connecting an oscilloscope

Residual current measurement (lior) (mode) for usage in TN or TT AC systems.

Measuring clamps

Measuring clamps measure the locating current or the residual current. They have a test lead approx. 2 m long. They are connected to the EDS195P(M) via a BNC connector.

If measuring current transformers are used instead of measuring clamps, you will need the adapter supplied: BNC/4-mm connector. See “Component list”, page 14.

Coupling device AGE185

The coupling device AGE185 expands the nominal voltage range of the equipment for insulation fault location EDS309…. It enables the equipment to be connected to system nominal voltages up to AC 790 V or DC 960 V.

Residual current measurement is possible in TT and TN systems (earthed systems) using the device variants listed below. The following overview describes which tasks can be done with which models.

Equipment for insulation fault location in main circuits

1. Permissible system voltage in the main circuits:

Insulation fault location in IT systems up to AC 42…460 Hz, 20…575 V and DC 20…504 V

Insulation fault location using AGE185 up to AC 42…460 Hz, 500…790 V and DC 400…960 V

EDS3090:

Can be used in IT systems in which a locating current injector (e.g. PGH471) or an ISOMETER® with integrated locating current injector (e.g. iso685-x-P) is already installed.

EDS3090PG:

Can be used in IT systems in which no locating current generator and no ISOMETER® with integrated locating current generator is installed.

Supply voltage for the locating current generator PGH185 supplied: AC 50…60 Hz, 230 V

EDS3090PG-13:

• Can be used in IT systems in which no locating current generator and no ISOMETER® with integrated locating current generator is installed.

Supply voltage for the locating current generator PGH185-13 supplied: AC 50…60 Hz, 90…132 V

2. Permissible system voltage in the main circuits:

Insulation fault location in IT systems up to AC 42…460 Hz, 0…575 V and DC 0…504 V

Insulation fault location using AGE185 up to AC 42…460 Hz, 500…790 V and DC 400…960 V