Digital AC bridge automatic SA 7100-2, CA 7100-3

Bridges AC high voltage automatic SA designed to measure electrical capacitance and tangent of dielectric loss angle , voltage and frequency of the AC current, DC resistance.

The main measured pelicaniformes-SA-emkosti and the tangent of pearlsofpaulene direct current at a voltage of up to 2.5 karaokee voltage (voltage applied to the reference capacitor) and its frequency in the witness resumeobject applications:

The isolation control and measuring parameters of electrical, electronic equipment and their components during production and operation.
Verification, calibration and metrological certification and testing of measuring instruments.

Operational characteristics of bridges SA:

The bridge consists of a control Unit (BU) that are installed on the workplace of the operator, and a measurement Unit (MU), which is located in the high voltage area. Communication BU BI by using fiber-optic cable. This ensures the safety of personnel.

The measurement process is fully automated, including the selection of sub-bands. Display of measurement results is carried out on an LCD screen (2 lines of 16 chars). Control of the measurement process can also be carried out using a personal computer (PC).

In the non-volatile memory BU you can save up to 1000 entries, results of measurements, which can be copied to a PC in Microsoft Word or Microsoft Excel. The result of each measurement listed in the archive, can be identified by the date and time of the measurement, and stored an alphanumeric designation of the measurement object.

The efficiency of the Bridge can be verified even in the field using a Testing device, included in the package.

Bridges SA-3 are supplied with one of the variants of the high-voltage switch. Switch SA switches the measurement modes C, tgδ - R Switch SA switches the measurement modes C, tgδ - R and the measurement circuit "direct - reverse". The switches are controlled remotely using BOO.

In the standard delivery of the Bridge is a cable measuring KI (25 m) with external insulation capable of withstanding the operating voltage up to 10 kV. In this regard, when measuring under the "upside-down" scheme is not required to take additional measures to its isolation.

All component parts of the Bridge and the cables are placed in special bags laying.

Cables can be supplied in laying the bag or on special reels. The cable set is defined when ordering.

Bridges SO can be used in manufacturing plants, stationary and mobile laboratories.

Bridges SA correspond in their basic characteristics, to the best world analogues, which produce a firm Haefely Trench AG Tettex Instruments Division (Switzerland), Doble Engineering Company (USA), Lemke Diagnostics GmbH (Germany). Price counterparts several times higher than the price of Bridges SA.

Technical specifications of high voltage bridges AC SA:Parametrizations-SA-izmerenie values:capacitance, loss tangent, voltage, and custodiaproteggete direct current at the test voltage up to 2.5 vcontrol isolation facilities under operating napryazheniem the device of the automated negotiation SA or Same process of izmereniya, including choice of odiameconelalma and display of measurement resultsoption 1: management with control Unit (keypad 16 keys, two-line LCD);
option 2: management using a personal computer connected via a COM port (RS232) to Block upravlyaemosti and the operating voltage of the built-in reference kondensator ... 200 pF, 10 Comcast external reference condensatore 10 pF to 10000 pfile current through the reference kondensatoren 10 µa to 10 masila current through the object izmereniya 0 to 0.5 Diapason frequency working napryazheniyu to 48.7 Hz to 61,2 Diapason dimensions:

• capacity

from 0 to CH (4 subrange);
where C0 is the capacitance of the reference capacitor.

• the loss tangent

from 0 to 1;

• resistance

from 5x105 to 1010 Ohms when testing voltage of 500 V;
from 106 to 5x1010 Ohms at the test voltage 1000 V;
1,5x106 to 1012 Ohms at the test voltage 2500 Predely permissible relative error in the measurement of:

• capacity

±5x10-2%;
when using an external reference capacitor ±1x10-2%.

• the loss tangent

±(1x10-4+0,01 xtgδ)

• operating voltage

±1,5%

• frequency

±0.1 Hz

• resistance

±2,5% (at the test voltage 2500 V error normalized to range from 1,5x106 to 1011 Ohms)Limits of additional error in the measurement of resistance when exposed to the measuring input of the bridge CX, RX" sinusoidal current of industrial frequency current is 0.5 mA±0.2% Measurement of capacitance and loss tangent in terms of electrostatic interference on working costorientation suppression "currents of influence" by changing the phase voltage (method two counts)
"Smooth" vasoregulatory not required!The possibility of measuring the parameters of grounded objects ("inverted scheme")provided for all measured parameterarray results izmerenii records of the results smartinsulin conditions of use:

• the ambient air temperature is 15 to 25 °C;
• relative humidity - up to 80% at 25 °C.

Operating conditions:

• ambient temperature from minus 10 to plus 40 °C;
• relative humidity - up to 80% at 25 °C.

Power supply:

• measurement unit - built-in rechargeable batte