Insulation inspection apparatus
First Claim
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1. An insulation inspection apparatus comprising:
- an inspection vessel in which a winding can be stored,an electrode provided to face a coil end of said winding formed at an axial end of an annular core body,a voltage application unit applying voltage between said winding and said electrode, anda sensor unit sensing current and/or voltage between said winding and said electrode, whereinvoltage is applied between said winding and said electrode while a relative positional relationship between said winding and said electrode is altered, anda predetermined gap is formed between said winding and said electrode, wherein said predetermined gap is an axial gap between said winding and said electrode.
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Abstract
An insulation inspection apparatus includes a chamber in which a stator with a winding can be stored, an electrode movable along the outer circumference of a coil end of the stator winding, a voltage application unit applying voltage between the coil end and electrode, a sensor unit sensing leakage current and/or voltage drop between the coil end and electrode, and a pressure reduction unit reducing the pressure in the chamber.
11 Citations
18 Claims
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1. An insulation inspection apparatus comprising:
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an inspection vessel in which a winding can be stored, an electrode provided to face a coil end of said winding formed at an axial end of an annular core body, a voltage application unit applying voltage between said winding and said electrode, and a sensor unit sensing current and/or voltage between said winding and said electrode, wherein voltage is applied between said winding and said electrode while a relative positional relationship between said winding and said electrode is altered, and a predetermined gap is formed between said winding and said electrode, wherein said predetermined gap is an axial gap between said winding and said electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An insulation inspection apparatus comprising:
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an inspection vessel in which a winding can be stored, an electrode provided to face a coil end of said winding formed at an axial end of an annular core body, voltage application means for applying voltage between said winding and said electrode, and sensor means for sensing current and/or voltage between said winding and said electrode, wherein voltage is applied between said winding and said electrode while a relative positional relationship between said winding and said electrode is altered, and a predetermined gap is formed between said winding and said electrode, wherein said predetermined gap is an axial gap between said winding and said electrode. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification