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EDS3090/-91/-92/-96 Portable equipment for insulation fault location for energised and deenergised AC and DC systems Image similar EDS309x_D00012_08_M_XXEN/04.2025...
Indication of important instructions and information...............5 Service and Support............................5 Training courses and seminars........................5 Delivery conditions............................5 Inspection, transport and storage......................6 Warranty and liability.............................6 Disposal of Bender devices..........................6 Safety instructions......................7 System description......................8 Intended use..............................8 System components............................8 3.2.1 Overview................................
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EDS3090/-91/-92/-96 4.4.4 Response characteristics for control circuits in AC systems............24 4.4.5 Response characteristics for control circuits in DC systems............25 Connecting the locating current injector..............26 Disconnecting insulation monitoring device..................26 Locating current injector in a de-energized IT system..............26 Connection to a live IT system.........................27...
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Table of contents 6.12.2 Insulation fault location in a system with a permanently installed EDS system....43 6.12.3 Insulation fault location in diode-decoupled DC systems.............45 6.12.4 Usage of the EDS195PM as a residual current meter..............48 6.12.5 Indication of the harmonics during residual current measurement..........49 6.13 Coupling device AGE185 for higher system voltages..............
Regular face-to-face or online seminars for customers and other interested parties: "www.bender.de/en/ > Know-How > Seminars" Delivery conditions The conditions of sale and delivery set out by Bender GmbH & Co. KG apply. These can be obtained in printed or electronic format. EDS309x_D00012_08_M_XXEN/04.2025...
Bender GmbH & Co. KG is registered in the waste from electrical and electronic equipment (WEEE) register under the WEEE number: DE 43 124 402. For more information on the disposal of Bender devices, refer to www.bender.de > service & support.
The locating voltage of DC 50 V produced by the locating current injector PGH186 can cause interference at sensitive system components. In case of doubt, contact Bender. The locating current from the PGH185 or PGH186 can cause residual current devices to trip. The locating current is limited to maximum 25 mA (or 10 mA), however 30 mA residual current devices may trip, for instance, between 15 mA and 30 mA.
System description System description Intended use Only skilled persons are permitted to carry out the work necessary to install, put into service and run a device or system. 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.
EDS3090/-91/-92/-96 Locating current injector PGH18… Insulation fault locator EDS195PM For generating a locating current for For connecting measuring clamps and insulation fault location for finding insulation faults 3.2.2 Insulation fault location equipment type list Residual current measurement is possible in TT and TN systems (earthed systems) using the device variants listed below.
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• Set with flexible clamps with band lengths of 500 and 1000 mm • Application for cables with bigdimensions or in systems with narrow space conditions • Combinable with EDS3090, EDS3092, EDS3096 • The minor response sensitivity towards the clamps PSA3… in chapter “Response sensitivity characteristics of the EDS195PM”, Page 20 must be considered.
This also applies to measuring clamps or measuring current transformers from the Bender range that are not expressly intended for use with the EDS309..In addition to the measuring clamps supplied, the following measuring current transformers from the Bender series may be connected to the EDS195PM: •...
The resulting test current depends on the size of the insulation fault and the system voltage. For example the locating current on the EDS3090 is limited to maximum 25 mA; with the setting I = 10 mA it is limited to 10 mA.
EDS3090/-91/-92/-96 Observe these notes for a correct measurement result: • Route all live conductors through the measuring clamp. • Do not route any protective earth conductors or screens on screened cables through the measuring clamp. • Do not use commercial measuring clamps. They are not suitable for the EDS309…...
System description 3.4.2 Test cycle The locating current pulse cycle has a duration of 6 seconds. The PGH… sends alternating positive and negative locating current pulses. The sketch below shows the test cycle of the PGH… with the different switch settings (1, 2, 3) on the device.
EDS3090/-91/-92/-96 3.4.4 Currents in the EDS system Img. 3-1: Path of the residual currents and the locating current ..... Locating current circuit due to the insulation fault R ..Residual currents I (example) Locating current measured by the EDS195PM...
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System description The two currents I and I are equal in magnitude but different in sign, so that the sum is zero. The EDS195PM recognises this and shows no message. Part of the current flows through an insulation fault R .
Requirements • The insulation fault must be present for at least 30s. • The locating current is in the following ranges: – Main circuits with EDS3090, EDS3090PG, EDS3090PG-13, EDS3092PG, EDS3096PG-13, EDS3096PV, EDS3096PG: = 2…50 mA – Control circuits with EDS3091, EDS3091PG, EDS3091PG-13, EDS3092PG: = 0.2…5 mA...
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– Main circuits: If the measured residual current exceed 10 A, the EDS195PM outputs the alarm message > 10A aus. This applies to the system frequencies 50/60/400 Hz for the EDS3090, EDS3090PG, EDS3090PG-13, EDS3092PG, EDS3096PG-13, EDS3096PV and EDS3096PG.
EDS3090/-91/-92/-96 Fault curve: A residual current of 2 A at 10 Hz is outside the permitted frequency range (red dot) → a valid measurement is not possible! Frequency range Insulation fault location EDS195PM Permissible frequency and residual current range Frequency [Hz] There must be no connections between outgoing circuits downstream of the measuring clamp because such connections will produce interfering residual currents.
AC systems is 0.5 and in 3AC systems 0.67. For this reason, set the response value on the EDS195PM for usage in AC and 3AC systems as follows: Settings for the EDS195PM and the PGH18… Settings Main circuit Control circuit PV system Equipment for insulation EDS3090 EDS3091 EDS3096PV fault location EDS3090PG EDS3091PG EDS3090PG-13 EDS3091PG-13...
EDS3090/-91/-92/-96 Proceed as follows: Select the characteristics (3AC, AC, DC) that are appropriate for your type of system. From these, select the diagram that best matches the desired system voltage. Calculate the expected leakage capacitance C of the system monitored. Insulation monitoring devices in the IRDH…...
Connecting the locating current injector Connecting the locating current injector NOTE Hazard due to excessively high locating voltage The operation of the PGH18… and possibly the power supply unit with an incorrect supply voltage can cause irreparable damage to the devices. •...
EDS3090/-91/-92/-96 Connection to a live IT system DANGER Risk of electric shock Touching live, uninsulated wires can cause death or serious injury. • Avoid any physical contact with live wires. • Follow the rules for working on electrical systems. DANGER Risk of electric shock If the PGH18...
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Connecting the locating current injector DANGER Risk of electric shock If the PGH18... is connected to a live system without a PE conductor, life-threatening system voltage will be present at terminal . • Only connect the PGH18... to a live system with a PE protective conductor at terminal . CAUTION Risk of short circuit When the EDS3090PV is connected with test leads without integrated fuses a short circuit may occur due to...
EDS3090/-91/-92/-96 Operation Short description of insulation fault location (EDS mode) DANGER Risk of electric shock Touching live, uninsulated wires can cause death or serious injury. • Avoid any physical contact with live wires. • Follow the rules for working on electrical systems.
Operation Description of a residual current measurement The EDS195PM allows residual current measurements up to 10 A, see “Usage of the EDS195PM as a residual current meter”, Page 48. Display and operating elements of the PGH18... ON/OFF switch, switch on or off locating current Changeover switch for maximum locating current values: 25mA / 10mA or 2.5mA / 1mA Rear: Magnetic strip for attachment to metal items (e.g.
EDS3090/-91/-92/-96 Display and operating elements of the EDS195PM BNC connection for measuring clamp Micro USB connection for charging the device's rechargeable batteries LC display, illuminated, 3 lines of 16 characters ALARM LED • flashes if the response value is exceeded •...
Switch device on/off. Operating the EDS195PM 6.6.1 Switching on and off the device Switching on EDS195PM BENDER GmbH&CoKG Switch on the device without current transformer using button. D-35305 Grünberg The self-test starts. Then No CT connected appears. Switching off >>>Self test<<<...
EDS3090/-91/-92/-96 6.6.2 Changing the measuring clamp EDS195PM switched off: EDS195PM in operation: Disconnect clamp no longer required. Disconnect clamp from the device. Switch on EDS195PM. Wait for No CT connected message. Wait for No CT connected message. Set required clamp type.
Operation 6.6.7 Meaning of the display elements The elements shown refer to EDS mode (I ) for insulation fault location. = 8mA ΔL Resp. = 5mA PSAxxxx Locating current pulse: = positive pulse = pause or no measurement possible when permanently displayed = negative pulse ►29 = timer (29…0) shows the duration of a measurement of an outgoing circuit Selected transformer type (see “Display and operating elements of the EDS195PM”, Page 31)
EDS3090/-91/-92/-96 Standard display for EDS measurement (I ) with cable in the clamp The display is indicating a measured fault current I of 3 mA. A measurement in progress is indicated by the change in the polarity of the measuring pulse ( ) with a pause (−−−) in between.
Operation Alarms during EDS measurement or RCM measurement If one of the response values I or I is exceeded, the ALARM LED flashes. If the fault memory M is activated, the ALARM LED remains lit after the removal of the fault. The stored alarm is cleared using the RESET button. = 8mA Alarm during insulation fault location (EDS): ΔL...
EDS3090/-91/-92/-96 6.11.1 Navigating in the menu MENU: Open the menu OK: Select a menu item or accept changes ˄ / ˅: • Navigate up or down in the menu • Increase or reduce values ESC: • Return from the last menu item selected •...
Operation 6.11.4 Menu item 4. Harmonics Display harmonics from H1 to H8. To display the harmonic with the greatest amplitude in the standard display activate this menu item: 2. Settings > 7. Harmonics: on/off > on 6.11.5 Menu item 5. I alarms Check the alarms recorded during insulation fault location.
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EDS3090/-91/-92/-96 The EDS309… is primarily used as a portable insulation fault location system in unearthed IT systems. Once all the instructions in chapter “To consider before use”, Page 17 have been followed, insulation fault location can be started: Check whether the system voltage is within the permissible limits.
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Operation i.e. , −−−, In the case of a measurement fault, the display permanently indicates −−−. There are 3 reasons for this: – The insulation fault resistance is too high and cannot be measured by the EDS195PM. – The measuring clamp is not held still. –...
EDS system (IRDH575, iso685-x-P or isoxx1685xP or PGH47…). The PGH18… is not required for this application. The PGH18… is not included in the items supplied with the EDS3090 and EDS3091. Insulation fault location is therefore only possible in electrically live IT systems. Also follow the operating instructions for the permanently installed EDS system.
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Operation – Keep the measuring clamp still during the measurement! – During the measurement do not apply any pressure to the clamp limb. Place the measuring clamp around the green-yellow wire between the IRDH575, iso685-x-P or isoxx1685xP or PGH47… and earth. If the EDS195PM does not react, the insulation fault has an excessively high impedance and cannot be detected.
EDS3090/-91/-92/-96 6.12.3 Insulation fault location in diode-decoupled DC systems In diode-decoupled DC systems equalising currents occur in and between the decoupled circuits. The direction and magnitude of these equalising currents is dependent on voltages in the system, the characteristics of the decoupling diodes and the characteristics of the loads.
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Operation – Place a measuring clamp around each of the supply cables to the redundantly supplied loads. During this process ensure that the clamp is placed around all related load supply cables for a diode-decoupled load. – Pay attention to identical directions of flow on the two measuring clamps (see connection diagram). For this purpose the measuring clamps are marked with an arrow.
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EDS3090/-91/-92/-96 Img. 6-2: Insulation fault location in diode-decoupled DC systems (connection diagram) EDS309x_D00012_08_M_XXEN/04.2025...
Operation 6.12.4 Usage of the EDS195PM as a residual current meter The EDS195PM can be used as a residual current meter up to AC 10 A in TN and TT systems. Residual current measurement is only possible in electrically live systems. The locating current injector PGH18… is not required for this application.
EDS3090/-91/-92/-96 Possible error messages • Self test error – Incorrect current transformer type set – EDS195PM hardware faulty – Clamp moved while the indication >>>Self test<<< was displayed – An interfering residual current is flowing through the clamp – There is a PGH locating pulse acting on the clamp •...
Operation DANGER Risk of electric shock Touching live, uninsulated wires can cause death or serious injury. • Avoid any physical contact with live wires. • Follow the rules for working on electrical systems. Installation, connection and commissioning The two cable ends of the AGE185 can be connected to the system's PE terminals and the PE socket of the PGH186 as required and according to the local conditions.;...
EDS3090/-91/-92/-96 6.14.1 Displaying charge state The display can indicate 4 different charge states: 100 %, 66 %, 33 % and a flashing empty battery symbol. = 3mA ΔL Resp. = 5mA PSA30xx 6.14.2 Changing batteries The battery compartment is on the rear of the EDS195PM. The EDS195PM retains settings when changing batteries.
Operation • iso685-X-P • isoxx1685xP 6.15.1 Collecting and analysing information Before taking measurements: • Obtain and scrutinize the plant drawings/layout: – Make sure you familiarize yourself with all the outlets/measuring points and where they are. • Determine the system type: –...
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EDS3090/-91/-92/-96 Measuring signal output Measuring signal input EDS195PM portable oscilloscope EDS309x_D00012_08_M_XXEN/04.2025...
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Operation Img. 6-4: EDS309... connectivity in an IT system EDS309x_D00012_08_M_XXEN/04.2025...
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EDS3090/-91/-92/-96 In diode decoupled systems, parallel test signals can also be visually inspected: Img. 6-5: Insulation fault location in a diode-decoupled DC system (connection diagram) EDS309x_D00012_08_M_XXEN/04.2025...
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Operation A typical measured signal in systems without any interference is shown below (left). The amplitude of the signal is dependent on the magnitude of the test current. The alarm notification and the square wave pulse signalling a detected test current can be seen at the upper right-hand corner of the EDS195PM display (right). Test current pulse = 9mA ΔL...
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EDS3090/-91/-92/-96 This method makes it easy to follow the test signal. If the test signal displayed on the oscilloscope is very small, the following options are available: • Increase the test current in the main circuits to 50 mA by means of IRDH575, iso685-x-P or isoxx1685xP.
Technical data Technical data Technical data EDS309… system Valid for PGH18…, EDS195PM, AGE185 Environment/EMC IEC 61326-2-4 Operating temperature −10…+55 °C Climatic classes acc. to IEC 60721: Stationary use (IEC 60721-3-3) 3K22 Transport (IEC 60721-3-2) 2K11 Long-term storage (IEC 60721-3-1) 1K22 Classification of mechanical conditions acc.
EDS3090/-91/-92/-96 Supply voltage Supply voltage U AC 50…60 Hz; 230 V Operating range of U 0.85…1.15 × U Supply voltage U version -13 AC 50…60 Hz; 90…132 V Power consumption PGH 183, PGH 185 ≤ 3 VA PGH 186 ≤ 6 VA...
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Technical data Batteries 3 × LR6 AA – 1.5 V USB power supply unit: Primary 100…240 V; 50…60 Hz Secondary DC 5 V; ± 10 % Power consumption ≤0.5 W Measuring circuit, insulation fault location Nominal system voltage with uninsulated conductors with measuring clamp up to 600 V Rated frequency DC, 42…2000 Hz Main circuit (I...
EDS3090/-91/-92/-96 Inputs Connection for measuring clamp BNC socket Connection for power supply unit (DC 5 V) USB socket Display 3 × 16 characters, switchable backlight Alarm Other Degree of protection of built-in components DIN EN 60529 (VDE 0470-1) IP40 Protective class according to IEC 60947-1, DIN EN 60947-1 (VDE 0660-100)
Technical data Status word ALM [µA] ALM [mA] Fault memory: E = on | A = off Buzzer: E = on | A = off Data logger Overwrite: J = yes | N = no Data logger Change [%] CT type •...
DC 5 V for external supply of the EDS195PM via USB connector A167054 connector PSA3165 Clamp 115 mm for EDS3090… and EDS3096… B980852 Clamp flexible for insulation fault location and differential method, with CTAF ENCLOSURE, CTAF500 BAND, CTAF1000 BAND, BNC cable, terminal, 2 × spare screws,...
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