Fluke 1744 Instrukcja Użytkownika Pobierz pdf (Strona 59)

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Users Manual

Input Voltage

Input range V

P-N: 69, 115, 230, or 480 V ac

Input range V

P-P 120, 200, 400, or 830 V ac

Max overload voltage 1.2 V

Input range selection By job programming

Connections P-P or P-N, 1- or 3-phase

Nominal voltage V

≤ 999 kV (using PTs and ratios)

Input resistance Approx. 820 ke per channel. Lx-N

Single phase (L1 or A, L2 or B, L3 or C connected):

app. 300 ke

Intrinsic uncertainty 0.1% of V

Voltage transformer Ratio : < 999 kV / V

Ratio selection By job programming

Current Input with Flexi Set

Input ranges I

L1 or A, L2

or B, L3 or C, N:

15, 150, 1500, or 3000 A ac

Measuring range 0.75 A to 3000 A ac

Intrinsic uncertainty < 2% of I

Position influence Max. ±2% of m.v. for distance conductor to

measuring head >30 mm

Stray field influence <± 2 A for Iext= 500 A ac and distance to measuring

head >200 mm

Temperature coeff. 0.005% / K

Current transformer Ratio : ≤ 999 kA / I

Ratio selection By job programming

Connection 3-phase, 3-phase + N 2-phase L1 or A and L3 or C

(2 W-meter-method) 7-pole connector

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 72 73

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Fluke 1744 Instrukcja Użytkownika Strona 59