Read Harman Kardon HK 3390 (serv.man3) EMC - CB Certificate online
- Page 9 of 13 -
Report
No.
132229
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) ...................................... :
22-27
o
C
—
Monitored point:
Under fault conditions
Under fault conditions
specified below
dT (K)
Permitted
dT (K)
1. *), D109 (A to C), SC, 5 hr;
Normal operated. FI stabilised at 1.27A
Sub transformer primary winding heated up to 98.0K and stabilised.
Dielectric strength test OK. No hazard.
Normal operated. FI stabilised at 1.27A
Sub transformer primary winding heated up to 98.0K and stabilised.
Dielectric strength test OK. No hazard.
Sub transf.
98.0
Sub transf.
150
2. *), C112, SC, 4 hr;
Unit shut down immediately. FI stabilised at 0.024A.
Sub transformer primary winding heated up to 100.6K and stabilised.
Dielectric strength test OK. No hazard.
Unit shut down immediately. FI stabilised at 0.024A.
Sub transformer primary winding heated up to 100.6K and stabilised.
Dielectric strength test OK. No hazard.
Sub transf.
100.6
Sub transf.
150
*) Tested at 253V
Note- SC: Short-circuit, NCD: No component damage, FI: Fault Input Current
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