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  1. The smart power grid USES transformer oil online monitoring system
  2. The smart power grid USES transformer oil online monitoring system
  3. The smart power grid USES transformer oil online monitoring system

The smart power grid USES transformer oil online monitoring system

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  1. Detailed information

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The main advantages

Monitoring can help reduce the risk of unanticipated accidents and some catastrophic failure. This can also help reduce costly cleanup, replacement, and unplanned outage costs. The key to extending the service life of important transformers is to detect early failure of the transformer as early as possible, and it will also provide significant economic and operational benefits:

Reduce the cost

Warning workers on the condition of failure

Reduce equipment failure and non - planned shutdown

Provide help for the decision to continue running or exit the device

Improve maintenance efficiency

Allow timely field measurements

Easier to make timely, early decision making

Make more forecasts and reliable maintenance schedules possible

apply

It is extremely necessary to know the operation condition of power transformer, and the online monitoring of key transformer is becoming more and more important. This information can be used to maximize assets and avoid costly failures.

The Hudran201i system is very easy to install on the oil filled electrical equipment for on-line monitoring of the following new or long-running devices:

Power transformer

autotransformer

Equipment transformer

Arc furnace transformer

Rectifying transformer

Distribution transformer

reactor

characteristic

Beginning in 1978, it was a fully validated technique

Only a single valve can be used to detect failure gases, H2,CO,C2H2,C2H4

Monitoring bias based on baseline

The sensor measurement results were updated less than 10 minutes

Without moving parts and pumps, it means longer reliability

Sensor self-detection function (automatic or user triggered)

Dynamic oil sampling

Calculate the concentration of the mixture (PPM) and provide the output for the external communication system

Record hourly and sky PPM trends and provide alerts

Historical data and events have been recorded for a year, at least 500 events

Warning of gas levels and trends can be adjusted

Sensor periodic test, calibration and configuration

Network communication performance

No main computer has full and working ability

Sensor technical parameters

Measuring range

Gas: 0-2000ppm (volume/volume equivalent hydrogen (H2))

accuracy

Gas: reading plus or minus 10% plus or minus 25ppm (equivalent hydrogen)

The gas is relatively sensitive

Hydrogen (H2) : 100% of the content

Carbon monoxide (CO) is typical: 18 + + 3% in content

Acetylene (C2H2) typical: 8 + or 2% of content

Acetylene (C2H4) typical: 1.5 or + 0.5% of the content

The response time

10 minute sensor response (90% of step change)

The shell

NEMA 4 x ® (IP66); White cylindrical aluminum shell; 178mm diameter x180mm(7*7 1/8 inch) shell to valve installation

The 1.5 inch convex NPT thread (standard) brass adapter is mounted on the transformer valve; 1 or 2 inch adapters and 1 inch strip heat sink adapter can be selected for temperature range

The valve oil temperature: - 50 to + 90 ℃ (- 58 to 194 ℉), high temperature matching with the radiator brass adapter oil temperature of 105 ℃ (221 ℉)

The surrounding environment

- 50 to 55 ℃ + 58 to 131 ℉ (-)

Oil pressure

0-700 kpa (0-100 psi); No vacuum (kPa; Kpa, psi: pounds per square inch

The power supply

100/115/200/230V ac plus or minus 10% (100V ac meets EN61010) 50/60hz, Max 350VA

Technical characteristics

Rs-232 local port: standard rs-232 communication port (db-9), which allows connection with local computer (or using modems and distant computers); Any H201Ti can be accessed through any H201Ci controller

Monitor connection port: H201Ci connect with H201Ti through 3000V optical isolation port; Maximum length of 1300 m (4000 ft); Triple double stranded cable with shielding layer

RS - 485 connection: standard RS - 485 connection, using a Daisy chain connection, allowing up to 32 H201Ci - 1 controller (or H201Ci - C or H201Ci - 4) link, the maximum length of 1300 meters (4000 feet) with a stripe of shield twisted-pair cable

Communication controller

Hydrangea201-1 single-channel controller: can connect a Hydran201Ti smart sensor to provide communication and display, alarm and analog output.

Hydrangea201ci-4 channel controller: can connect a Hydran201Ti smart sensor to provide communication and display, alarm and analog output.

Hydrangea201ci-c four-channel controller: can connect a Hydran201Ti smart sensor, which can provide communication, but does not provide display, alarm, analog output.