Circutor CIRWATT-B410T Series Instrukcja Użytkownika Pobierz pdf (Strona 9)

THREE PHASE STANDARD CIRWATT B METER

CIRWATT B THREE PHASE INSTRUCTION MANUAL

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(1) Option only available for direct meters with three phase internal relay.

Example: The code 410UD1A90B10 represents a Type B Standard meter, Class B for active energy (Class 1) and Class 2 for reactive

energy, with asymmetric connection, 50Hz, 4 quadrants; with supply/ voltage between 3 x 127(230)V and 3 x 230(400)V and 10(100) A , with

RS232 and RS485 communications; without expansion module or extra features.

1.3.- Metrology

The metrological characteristics for the Cirwatt Three-Phase Type B (TBT) are:

The current sensor is of the current transformer type.

Current ranges:

Active Class B (1)

Indirect / semi-indirect connection version

0,250

0,010

min

0,050

/ I

ref

5,000

max

10,000

Direct connection version

1,000

0,040

min

0,500

/ I

ref

10,000

max

100,000

1.4.- Measured magnitudes

The meter is able to measure the following variables:

Imported and exported active and reactive energy in the four quadrants.

Active and Reactive Power.

Instantaneous current and voltage.

Cos .

1.5.- Nominal, maximum and minimum operating conditions

1.5.1.- Electrical parameters

Reference voltage (U

ref

): 3x57/100V to 3x230/400V (depending on version)

Operating voltages

o minimum: 80% U

ref

o maximum: 120% U

ref

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