12
Quick Tester Model 8505
The following table lists the expected results reported by the Model 8505
testing across pairs of terminals in Y and Delta transformer configurations.
Measurement
terminals
Result if coil is good
(indicator light blinks)*
Comments
X1 to X0
Transformer (T) PASS
X2 to X0
Transformer (T) PASS
X3 to X0
Transformer (T) PASS
X1 to X2
Transformer (T) PASS
X2 to X3
Transformer (T) PASS
X3 to X1
Transformer (T) PASS
H1 to H2
Transformer (T) PASS
H2 to H3
Transformer (T) PASS
H3 to H1
Transformer (T) PASS
H1 to H0
Transformer (T) PASS
H2 to H0
Transformer (T) PASS
H3 to H0
Transformer (T) PASS
H1 to X1
Transformer (T) PASS
If H0 and X0 are connected to each other
OPEN
If H0 and X0 are not connected together
H2 to X2
Transformer (T) PASS
If H0 and X0 are connected to each other
OPEN
If H0 and X0 are not connected together
H3 to X3
Transformer (T) PASS
If H0 and X0 are connected to each other
OPEN
If H0 and X0 are not connected together
H0 to X0
SHORT
If H0 and X0 are connected to each other
OPEN
If H0 and X0 are not connected together
*The buzzer sounds when the Transformer (T) PASS light blinks.
Note that if the Delta configured transformer is primary with a neutral
(H0), and if the secondary Y has a neutral (X0), they may be shorted in
some configurations.