Read Harman Kardon HK 3490 (serv.man3) EMC - CB Certificate online
- Page 9 of 13 -
Report
No.
132230
11.2
TABLE: summary of fault condition tests
P
Voltage (V) 0,9 or 1,1 times rated voltage ............. :
207V or 253V
—
Ambient
temperature
(
o
C) ...................................... :
23-27
o
C
—
Monitored point:
Under fault conditions
Under fault conditions
specified below
dT (K)
Permitted
dT (K)
1. *), D109 (A to C), SC, 4 hr;
Unit shut down after 5 sec. FI stabilised at 0.022A.
Sub transformer primary winding heated up to 94.7K and stabilised.
Dielectric strength test OK. No hazard.
Unit shut down after 5 sec. FI stabilised at 0.022A.
Sub transformer primary winding heated up to 94.7K and stabilised.
Dielectric strength test OK. No hazard.
Sub transf.
94.7
Sub transf.
150
2. *), C112, SC, 4 hr;
Unit shut down immediately. FI stabilised at 0.023A.
Sub transformer primary winding heated up to 99.1K and stabilised.
Dielectric strength test OK. No hazard.
Unit shut down immediately. FI stabilised at 0.023A.
Sub transformer primary winding heated up to 99.1K and stabilised.
Dielectric strength test OK. No hazard.
Sub transf.
99.1
Sub transf.
150
*) Tested at 253V
Note- SC: Short-circuit, NCD: No component damage, FI: Fault Input Current
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