A 150 KVA 480 to 120/240-volt, 3Ø, 4-wire transformer has Z = 2.07% on its nameplate. The available line-to-line (bolted) fault current on the secondary is ___ amps. Any OCP installed on the secondary of this transformer should have an interrupting rating of at least this value.
A 150 KVA 480 to 120/240-volt, 3Ø, 4-wire transformer has Z = 2.07% on its nameplate. The available line-to-line (bolted) fault current on the secondary is ___ amps. Any OCP installed on the secondary of this transformer should have an interrupting rating of at least this value.
Chapter25: Television, Telephone, And Low-voltage Signal Systems
Section25.3: Signal System
Problem 8R: What two types of chime transformers for Class 2 systems are listed by UL?...
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A 150 KVA 480 to 120/240-volt, 3Ø, 4-wire transformer has Z = 2.07% on its nameplate. The available line-to-line (bolted) fault current on the secondary is ___ amps. Any OCP installed on the secondary of this transformer should have an interrupting rating of at least this value.
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