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3-f Voltage output from 1-f supply 0-450V f-N output voltage 20VA/phase maximum output Variable Frequency 30-999.9Hz Phase shift ±180.0° Multi-function timing system USB keyboard for comment USB data storage. Ideally suited to testing G59 & G99 schemes Step change of phase and df/dt Large 6.5” back-lit colour LCD Automatic mains voltage selection Fully Programmable test procedures Rugged case and weighs under 9kg The new ART3V Relay Test System brings new features to our range of relay test equipment making it far more adaptable. The new output voltages are higher and have a finer level of accuracy and control. The new full colour LCD provides more test detail, making it easy to understand. The ART3V user interface is an improvement of the DVS3 mk2 allowing simple testing of complex voltage and loss of mains protection systems. The ART3V has vastly improved accuracy, stability, and features. Designed to be the trusted and reliable voltage source for relay testing. The ART3V has been designed using the latest digital technology to generate a highly stable and accurate output with very low distortion. Each phase output is individually adjustable for voltage, frequency and phase angle. The unit is controlled by a simple user interface within defined menus. Values may be either typed in at the capacitive keypad or finely varied using a smooth rotary encoder. Bespoke test procedures can be created for step changes of any output variable at set times or with automatic timing of the response of the relay under test. The ART3V has a colour back-lit display to provide an easy to read user interface. Menu options are selected by dedicated buttons on the panel, allowing easy mode change. All information is displayed including contact set status, and a phasor diagram. The ART3V Relay Test System is ideally suited for testing G59/G99 protection, including loss of mains protection. Vector surge and df/dt (ROCOF) relays can be simply tested and timed, as well as other protection requiring one to three voltages, including: Under and over frequency relays Under and over voltage relays Synchronising relays df/dt & ROCOF relays Vector surge relays Transducers In conjunction with the ART3C or a current source (such as the 200ADM-P), the ART3V can be used to test protection circuits, including: Directional relays Distance protection Phase angle relays Power relays Power transducers Output The output of the ART3V has 4mm safety sockets for phases A, B, C and neutral. The neutral connection may be omitted for a delta connection. The neutrals can be linked for a star connection using the provided accessory. Timing System The timing system on the ART3V is flexible and transparent with different modes of operation. USB Data The ART3V can be connected to a USB keyboard for adding comments to tests. Each test is stored to a USB memory key with each comment. The data is stored in a *.CSV format allowing it to be opened in all types of desktop PC spreadsheet software. Modes of Operation Output Adjust This mode allows full control of frequency, voltage and phase. Phase Lock Mode The frequency and phase of the output can be controlled by an external reference in phase lock mode. The reference may be the mains supply to the ART3V, an external voltage, current. This mode allows testing of directional and distance protection in conjunction with an external current source. Fault Config Mode Fault Config mode allows extra flexibility in testing complex timed events or several sets of values that must be applied to a relay in turn. This mode allows three sets of values to be set in advance (pre-fault, fault, and post-fault values). The ART3V may be set to switch from one state to the next on a change of contact or after a specific time. In addition, the timer may be set to start or stop on any one of the state changes or a change of contact state. This mode allows frequency, phase and voltage to be changed simultaneously if required. Test configurations can be save to USB. More complex configurations can be loaded from the USB, such as a complete G59/G99 relay test, such as relay stability tests. df/dt and ROCOF (Rate Of Change Of Frequency) Loss of mains protection often takes the form of a df/dt relay, sensitive to the rate of change of frequency over time. The ART3V is able to generate a swept frequency output with accurate rates of change of frequency between preset frequencies. WEIGHT 8.9 kg DIMENSIONS 419 × 325 × 195 mm SUPPLIED ACCESSORIES Output lead set Lead set case Mains lead Spare fuse set Operating manual

The output voltage and current are metered by large, accurate true RMS digital meters 0-30kV output voltage 1.2kVA output capability Key operated supply switch to prevent unauthorised operation Dual overload protection Variable electronic trip – 10-110% of rated output Test timer Voltage and current metering Zero-volt interlock External 24Vdc interlock circuit Visual indication of test piece failure The KV30-40D MK3 Test System is a high voltage general purpose test instrument designed for testing insulation systems and the measurement of breakdown voltage on electrical plant and components. The unit has an output voltage variable from zero to 30kV with accurate metering on both the output voltage and current. A zero-voltage interlock is provided, ensuring that the output may only be energised with the voltage control at zero. The output voltage and current are metered by large, accurate true RMS digital meters. The meters are backlit and have a digit height of 19mm. The test object and output are protected by an adjustable current trip. The trip level may be set to 10-110% of the rated output in 10% steps. Breakdown of the test object is visibly indicated. The unit must be manually reset after a trip condition before testing can be resumed. A pre-selectable test timer is provided for timed tests of 5, 10, 15, 20, 30 seconds, 1, 2, 3 or 5 minutes. An alarm sounds when the test time has ended. The units feature automatic mains voltage selection and an external 24Vdc interlock circuit for connection of emergency off switches and enclosure interlocks. WEIGHT 42 kg DIMENSIONS 300 × 400 × 470 mm SUPPLIED ACCESSORIES ES30 earthing stick Supply lead Spare fuse set Operating manual Earth lead

0-50kV output voltage 20mA maximum output current Auto-selecting 115/230V supply voltage Key operated supply switch to prevent unauthorised operation Dual overload protection Variable electronic trip Voltage and current metering External interlock circuit Zero-volt interlock Visual indication of test piece failure Cast resin HV transformer The KV50-20D Mk3 Test System is a low power portable high voltage AC test system designed for insulation testing. This system is equally suited to both development and routine testing of electrical insulation systems and plant. The equipment consists of a control unit and a separate resin cast high voltage transformer linked by a 5 metre control cable. The control unit is housed in a rugged aluminium case with a hinged, removable lid for protection. The high voltage transformer is mounted on a base with swivel castors for mobility. The control unit is fitted with a comprehensive range of facilities for control, metering and protection, including an emergency off switch. The output RMS voltage and current are displayed on digital meters. A variable electronic trip is provided, allowing the trip current to be set to 10-110% of rated output. The KV50-20D Mk3 Test System is designed to be operated with the HV transformer inside an interlock test enclosure. A connector is supplied on the control unit to connect interlock switches, extra emergency stop switches and external 24V beacons. WEIGHT 17 kg DIMENSIONS 380 × 314 × 221 mm SUPPLIED ACCESSORIES Operating manual Mains lead Spare fuse

STS 5000 is a multifunction substation maintenance & commissioning test system for current, voltage and power transformers designed to perform primary tests requested in substations commissioning. It allows to perform accurate tests on CTs, VTs, PTs and ground grid. Main features Fully automatic Primary injection testing capabilities: up to 800 A or up to 5000 A / 7000 A, with the optional module BUX 5000 Variable output frequency: 15 – 500 Hz Power dissipation factor test with the optional module TD 5000 ( voltage up to 12 kV) 2000 v AC high-pot test Local control by large color display PADS – Power Apparatus Diagnostic Software for automatic testing, assessment and report IEC 61850-9-2 communication protocol Patented technology for Capacitance and Tan Delta measurement USB interface and Ethernet interface for PC connection. Compact and lightweight Tests performed CT ratio CT ratio voltage mode CT polarity CT burden secondary side ALF ISF CT excitation curve CT knee voltage CT winding resistance burden resistance voltage withstand rogowski coil low power transformer CT IEC 61850-9 VT ratio VT polarity VT burden secondary side VT IEC 61850-9 PT ratio PT vector group PT winding resistance OLTC tap changer dynamic resistance; PT excitation current PT no load current PT short circuit impedance PT leakage reactance Micro-ohmmeter CB operation time

STS 5000 is a multifunction substation maintenance & commissioning test system for current, voltage and power transformers designed to perform primary tests requested in substations commissioning. It allows to perform accurate tests on CTs, VTs, PTs and ground grid. Main features Fully automatic Primary injection testing capabilities: up to 800 A or up to 5000 A / 7000 A, with the optional module BUX 5000 Variable output frequency: 15 – 500 Hz Power dissipation factor test with the optional module TD 5000 ( voltage up to 12 kV) 2000 v AC high-pot test Local control by large color display PADS – Power Apparatus Diagnostic Software for automatic testing, assessment and report IEC 61850-9-2 communication protocol Patented technology for Capacitance and Tan Delta measurement USB interface and Ethernet interface for PC connection. Compact and lightweight Tests performed CT ratio CT ratio voltage mode CT polarity CT burden secondary side ALF ISF CT excitation curve CT knee voltage CT winding resistance burden resistance voltage withstand rogowski coil low power transformer CT IEC 61850-9 VT ratio VT polarity VT burden secondary side VT IEC 61850-9 PT ratio PT vector group PT winding resistance OLTC tap changer dynamic resistance; PT excitation current PT no load current PT short circuit impedance PT leakage reactance Micro-ohmmeter CB operation time

Alle technischen Branchen nutzen Testen und Messen als Instrumente des Erkenntnisgewinns. Daher ist das Test- und Messwesen eine Querschnittsaufgabe, die einer eigenen fachübergreifenden Methodik folgt. Egal ob Test, Experiment oder Versuch genannt, wir bieten Ihnen ein effizientes und bewährtes Mess- und Test-Know-How, dass in jeder technischen Branche einsetzbar ist. Von der Ausgangsfrage über die benötigten Mittel bis zur Datenauswertung - wir unterstützen Sie mit unserem erprobten Wissen rund um die Methodik des Messens und Testens. Testkonzept und -planung Durchführung von Testprogrammen und Messungen Datenauswertung und -analyse