MONTESTO 200
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MONTESTO 200 Portable on-line partial discharge measurement and temporary monitoring system for various electrical assets

Periodic on-line assessment of insulation condition Early defect detection prevents failures Insulation assessment based on partial discharge The insulation system of all medium-voltage (MV) and high-voltage (HV) assets is continuously subjected to electrical, thermal, mechanical and environmental stress factors. These cause insulation defects over time, which can eventually lead to dielectric failure and costly outages. Partial discharge (PD) activity is a reliable indicator of insulation condition, and it is often a sign of insulation defects that can cause failure in electrical assets....

MONTESTO 200 at a glance MONTESTO 200 is a portable, two-in-one solution for on-line PD measurement and temporary PD monitoring. Designed for both indoor and outdoor use, it performs synchronous, multi-channel PD and voltage data acquisition on various MV and HV electrical assets under load, such as: > Motors and generators > Power transformers > HV cables, terminations and joints IP65 rated MONTESTO 200 is IP65 rated for long-term outdoor use. Its rugged design protects it from dust particles and percipitation. Plug-and-play connections MONTESTO 200 is designed for use with a variety...

A variety of interfaces for data communication: WIFI, LAN, USB, fiber optics, HDMI COMMUNICATION INTERFACE Local asset status indication; automatic alarm notification via email (when configured by the user) ASSET STATUS Built-in computer for continuous data collection and storage SENSOR INPUT IP65 rated enclosure designed for indoor and outdoor use Device handles on both sides Local Area Network (LAN) connection

Local device status indication tells you the operating condition of the measurement unit Start/stop button Measurement device grounding connection Protection bumpers on both sides AC power connection Universal 12 V battery connection Connection port for UHF sensor control

One solution for on-line PD measurement and monitoring Plug-and-play connections MONTESTO 200 can be easily connected to permanently-installed PD sensors via a terminal box. This enables a safe and convenient plug-and-play set up when electrical assets are on line. As a result, unnecessary downtime can be avoided and the asset can be evaluated under operating conditions. The portable MONTESTO 200 is easy to set up for on-line PD measurements directly at the asset. It can be quickly and safely connected to permanentlyinstalled PD sensors via the terminal box. A portable PC or tablet can be...

3b Bushing tap sensors and adapters 3c UHF drain valve sensor 3d High-frequency current transformers Power cables and accessories

On-line PD monitoring from remote locations Convenient web interface For performing temporary on-line PD monitoring sessions from a remote location, users can set up monitoring sessions as well as view and analyze collected data from anywhere using the MONTESTO 200 software's web interface. MONTESTO 200 web interface overview screen 1 Fast remote monitoring session setup Users can set up and run temporary on-line PD monitoring sessions in six easy steps (less than 10 clicks of a mouse). 8

The system can be configured to send email notifications when measured PD values exceed pre-defined PD thresholds and trigger an alarm. Supporting data can be viewed anywhere using a smartphone, tablet or PC. 3 See triggered warnings and alarms 0 Show confirmed events The event log shows which PD events triggered a warning (yellow) or alarm (red). By clicking on an event, the corresponding real-time or historical PD trend data can be viewed.

Automatic cluster separation The advanced, web-based MONTESTO 200 software automatically stores PRPD (Phase-Resolved PD) patterns and the corresponding 3PARD (3-Phase Amplitude Relation Diagram) for each point in the PD trend diagram. All signal sources are automatically separated as clusters in the 3PARD to quickly differentiate between noise and PD for each phase. By clicking on a separated cluster, its individual PRPD pattern is shown. The most probable phase of origin is also identified after the separation is made.

Frequency sweep diagram (UHF) Several measurements are made for each frequency and the minimum (lower curve) and the maximum (upper curve) measured values are displayed. This method is used to detect any sources of interference in order to avoid them in a subsequent PD measurement. Pattern classification for motors and generators With just one click of a mouse, the MONTESTO 200 software generates a report indicating the probable cause and location of PD-related defects in rotating electrical machines. Defect location in power cables Distance to the defect location Defect location indication...

MONTESTO 200Order no. Includes the system components listed below VEHZ4184 Hardware 1 x 4-channel PD data acquisition unit and an integrated Industrial PC (IPC) in a rugged case 1 x Transportation case 1 x Mounting kit (includes mounting plates and magnets) 1 x Media converter Pre-installed software on integrated Industrial PC (IPC) 1 x Advanced monitoring and PD analysis software 1 x Operating system software Cables and accessories 1 x Duplex fiber optic cable (10 m / 32.81 ft) 1 x Grounding cable (6 m / 19.68 ft) 1 x Grounding clamp 4 x Signal cable with TNC connectors (4 m / 13.12...

Application-specific accessories Order no.Application-specific accessories Order no. 5| UHF drain valve sensor for oil-filled power transformers "3 CPL 844 permanent installation kit for bushings Includes 3 x bushing tap sensors with adapters, 1 x terminal box and 3 x triaxial cables (10 m) with pre-installed IP 65 connectors. Current rating of the bushing sensors: 9 mArms ... 30 mArms VEHZ4180 MCT 120: 80 kHz to 40 MHz, split ferrite core VEHZ4179 4 UHF 620 bandwidth converter Includes 1 x UHF 620 and connection cables in an IP65 case VEHZ4185 Motors and generators...

Acquisition unit Number of input channels Connector type Frequency range Sampling rate Peak input levels Measurement accuracy Maximum double pulse resolution PD event time resolution PD filter bandwidth System noise Communication protocols Power consumption Power supply Mains External battery Operating conditions Operating temperature Storage temperature Humidity Protection class Mechanical data Dimensions (W x D x H) MONTESTO 200: Transportation case: Weight MONTESTO 200: With transportation case and accessories: Internal PC Processor Memory RAM Storage Operating system 427 x 405 x 150...