Purpose of the development: Automated installation of measuring the dielectric losses of transformer oil "tangent-3M" is designed to determine the dielectric loss tangent of transformer oil in accordance with GOST 6581-75 at a frequency of 50 Hz.

Recommended application field: Energy.

Technical characteristic: The "tangent-3M" measures the dielectric loss tangent, dielectric constant, capacitance C, and the voltage U, applied to the sample cell (the operating voltage), the sample temperature of transformer oil. TECHNICAL DATA TANGENT-3M: Measuring range of loss tangent 0.0001 - 1.0 (0.01 - 100%) The error in the measurement of loss tangent (0,01 tg -0,0002) Effective voltage applied to the measuring cell, the corresponding field strength WW1 / m in 2000 Measuring range of operating voltage, V 0 - 2700 The limit of permissible relative basic error in the measurement of the operating voltage, 1.0% The range of measurement of the capacitance, pF 5 - 50 The limit of permissible relative basic error in the measurement of capacity,% (0,5 + tg) The range of operation of the heater, with 10 - 100 Temperature measurement accuracy, C1 The measurement, including calibration and heating to 90 degrees (with the measurements, at 10 ° C), min. 30 The measurement, including calibration, heating up to 90 degrees (with the measurements, at 10 ° C) and cooling, min. 80 The measuring cell according to GOST 6581-75, a three-electrode type Cell volume, cm3 13-14 Mains voltage single-phase alternating current, 205 - 235 Power consumption, kW, not more than 0.3 Overall dimensions 405 * 260 * 90 Weight, kg, not more than 5

Advantages over analogues: The "tangent-3M" can operate with six different cells, which parameters are stored in nonvolatile memory and is available for viewing the menu. The "tangent-3M" is stored in nonvolatile memory until 2000 most recent measurements. Includes software on CD-ROM, you can now copy from the facility to a stationary personal computer (PC) file that contains the results of measurements. The file can be written in MS Word or Excel. The PC is connected to the set via the serial interface (RS232C). The PC must be IBM - compatible and have the following characteristics: the operating system is Windows 95 (98), the presence of one free serial port (RS232). The "tangent-3M" is designed for indoor use at working the temperature of air from plus 15 ° C to 35 ° C, 80% relative humidity at a temperature of 20 ° C and atmospheric pressure of 84.0 - 106.7 kPa (630 - 800 mm. Hg. cent.).

The development stage readiness: Introduced in production

Description of the development:
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The principle of "TANGENT-3M" The cell reference capacitor (SC), PTN, RPTN form a bridge circuit measurement. USN amplifies the imbalance to the level required for the effective work of VATSP. VATSP is a synchronous detector with a reference waveform and the ADC output is connected to the STS. Use codes to be read by the microcontroller with VATSP, are proportional to the quadrature components of the signal imbalance. Compare the currents are converted to voltage and PTN RPTN adder isolated it possible to signal an imbalance which is amplified and converted to a simplified tax code VATSP. Microcontroller, driving RPTN (conversion factor 0 1000), a two-equilibrating current. SIF generates pulses synchronous with the frequency of the power supply and meter-tion signal. Zener diodes VD1, VD2, switches K1 and K2, and the fuses are designed to protect the measuring circuit overcurrent protection. Calculations required to obtain a result, the microcontroller. PACKAGE "TANGENT-3M": NAME IDENTIFICATION NUMBER. 1. The "tangent-3M" TM-1 3M.00.00.00 2. Measuring cell INP-3 YAPI-3/00.00.00 3 3. Network cable - 1 4. Interface cable for connection to a PC - 1 5. CD-ROM with the program - 1 DOCUMENTS 6. The "tangent-3M" - Manual TM-1 3M.00.00.00RE 7. Measuring cell INP-3. Passport YAPI-3/00.00.00PS 3 8. Metrological Certificate HGTSSMS - 1

corresponds technical description
Ready for implementation

Possibility of transfer abroad:
Licence's sale
Licence's sale
Technological document's sale
Creation of joint enterprise
Realization of finished commodity

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua