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Figure 7. Differential Characteristic of the DU Unit of the HU and HU-1 Relays at smaller values of current.
Figure 8. Differential Characteristic of the Differential Unit (DU) of the HU and HU-1 Relays at larger values of current.
Operating Current Shown for 15 and 20% Mismatch.
41-347.12C
Sub 1
471136
Sub 1
471050
7
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