PV-ISOTEST
EN - 34
10. TECHNICAL SPECIFICATIONS
10.1. TECHNICAL CHARACTERISTICS
Accuracy is indicated as [%reading + (no. of digits) * resolution] at 23°C ± 5°C, <80%RH
DC Voltage
Range [V] Resolution [V] Accuracy
3 1500
1
(1.0reading + 2digits)
AC TRMS Voltage
Range [V] Resolution [V] Accuracy
3 1000
1
(1.0reading + 3digits)
Frequency range: 42.5 ÷ 69Hz ; Voltages zeroed for measured value <3V
Insulation Resistance (M) R(+), R(-), Rp – DUAL mode
Test voltage DC [V]
Range [M
] Resolution [M]
Accuracy (*)
250, 500, 1000, 1500
0.1
0.99
0.01
(5.0
reading + 5digits) 1.0 19.9
0.1
20 100
1
(*) Accuracy given for VPN≥240V, Rfault≥10
. Accuracy of Rp and R(+) not declared if R(+)≥0.2M
and R(-)<0.2M
, Accuracy of
Rp and R(-) not declared if R(+) <0.2M
and R(-) ≥0.2M
Open circuit voltage <1.25 x rated test voltage
Short-circuit current <15mA (peak) for each test voltage
Rated test current > 1mA on R = 1k x Vnom (with VPN, VPE, VNE= 0)
Insulation resistance (M) – TIMER mode
Test voltage DC [V]
Range [M
] Resolution [M]
Accuracy
250, 500, 1000, 1500
0.01
9.99
0.01
(5.0
reading + 5digits)
10.0 99.9
0.1
Open circuit voltage <1.25 x rated test voltage
Short-circuit current < 15mA (peak) for each test voltage
Rated test current > 1mA on R = 1k x Vnom (with VPN, VPE, VNE= 0)
Selectable Timer: 3s ÷ 999s
Continuity of protective conductors (RPE)
Range [] Resolution []
Accuracy
0.00 9.99
0.01
(2.0
reading + 2digits) 10.0 99.9
0.1
100 1999
1
Test current: >200mA DC up to 5 (cables included), resolution 1mA, accuracy (5.0%reading + 5digits)
Open-circuit voltage 4 < V
0
< 10V
GFL – Ground Fault Locator
Test voltage DC [V]
Range [M] Resolution [M]
Accuracy Rp(*)
Position
accuracy
250, 500, 1000, 1500
0.1 0.99
0.01
(5.0rdg + 5dgt) 1module
1.0 19.9
0.1
20 100
1
(*) Accuracy given for VPN≥240V, Rfault≥10
. Accuracy of Rp and R(+) not declared if R(+)≥0.2M
and R(-)<0.2M
, Accuracy of
Rp and R(-) not declared if R(+) <0.2M
and R(-) ≥0.2M
Open circuit voltage <1.25 x rated test voltage
Short-circuit current <15mA (peak) for each test voltage
Rated test current > 1mA on R = 1k x Vnom (with VPN, VPE, VNE= 0)
The GFL function allows obtaining correct results ONLY at the following conditions:
Test carried out on a single string disconnected from the inverter, any dischargers and functional ground connections
Single fault of low insulation located at any position in the string
Insulation resistance of the single fault <0.1M
Due to the random nature of these faults, it is recommended to carry out the measurements in environmental conditions similar to
those in which the fault was reported
To Next Page
Loading...
