Voltech AT3600 - Page 362

SPECIFICATION VOLTECH AT3600 USER MANUAL
PAGE 8.1.4. VPN 98 - 024 SPECIFICATION
1.2. ACCURACY SPECIFICATIONS –
A
VAILABLE TESTS
R TEST
The accuracy is based on the test conditions chosen to measure the winding resistance,
and is given as:
where
A
T
is the total accuracy (%)
A
R
is the basic relative accuracy (%)
A
C
is the calibration accuracy (%)
A
V
is the correction for voltage level (%)
A
I
is the correction for current level (%)
The value of A
R
is given in the table in section 1.1 of this chapter.
The values of the other factors are given below.
where
V
M
is the measured voltage (V)
I
M
is the measured current (A)
AV) = 0.03% + (0.01% /
VM
A = 0.2
%
C
AI)
I
= 0.03% + (0.01% /
M
A = A
T
R
CV
I
+A +A +A