Interface for the transmission of electrical power to a motor-compressor

Patent metadata

Field	Value
Publication number	US-9419492-B2
Application number	US-201414468590-A
Country	US
Kind code	B2
Filing date	Aug 26, 2014
Priority date	Aug 29, 2013
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

An interface for transmitting electrical power to a motor of a motor-compressor is provided. The interface may include a receptacle having a first end portion coupled with a stator of the motor and a second end portion defining a hole at least partially extending therethrough. The interface may also include a plug configured to be detachably coupled with the receptacle. The plug may include a rigid, conductive rod having a first end portion configured to be coupled with a penetrator of the motor-compressor, and a second end portion configured to be at least partially disposed in the hole of the receptacle and detachably coupled therewith. The rigid, conductive rod may be configured to electrically couple the penetrator with the receptacle, and the receptacle may be configured to transmit the electrical power to the stator.

First claim

We claim:

1. An interface for transmitting electrical power to a motor of a motor-compressor, comprising:
a receptacle having a first end portion coupled with a stator of the motor and a second end portion defining a hole at least partially extending therethrough;
a shell extending circumferentially about and coupled with the receptacle, the shell configured to at least partially insulate the receptacle from process fluid contained in the motor-compressor; and
a plug comprising a rigid, conductive rod having a first end portion configured to be coupled with a penetrator of the motor-compressor, and a second end portion configured to be at least partially disposed in the hole of the receptacle and detachably coupled therewith,
wherein the rigid, conductive rod is configured to electrically couple the penetrator with the receptacle, and the receptacle is configured to transmit the electrical power to the stator.

2. The interface of claim 1 , wherein the stator further comprises a stator ring and stator windings coupled with one another, and the first end portion of the receptacle is coupled with the stator ring and configured to transmit the electrical power to the stator windings via the stator ring.

3. The interface of claim 1 , further comprising a conductive contact disposed in the hole of the receptacle and extending circumferentially about an inner surface of the second end portion defining the hole, the conductive contact configured to engage the second end portion of the rigid, conductive rod and electrically couple the plug and the receptacle with one another.

4. The interface of claim 1 , further comprising a coating disposed about at least a portion of the shell and at least a portion of the stator of the motor, the coating configured to at least partially insulate the receptacle and the stator from the process fluid contained in the motor-compressor.

5. The interface of claim 1 , further comprising a sleeve disposed circumferentially about and coupled with the rigid, conductive rod between the first end portion and the second end portion of the rigid, conductive rod.

6. The interface of claim 5 , wherein the sleeve further comprises a protuberance disposed radially outward from the second end portion of the rigid, conductive rod, the protuberance configured to engage an outer circumferential surface of the receptacle to thereby provide a fluid tight seal therebetween.

7. An interface for transmitting electrical power to a motor of a motor-compressor, comprising:
a penetrator assembly detachably coupled with a housing of the motor-compressor about an aperture extending through the housing, the penetrator assembly configured to receive the electrical power from a power source located external to the housing and transmit the electrical power to the motor disposed in the housing;
a receptacle having a first end portion coupled with a stator of the motor and a second end portion defining a hole at least partially extending therethrough, wherein the stator further comprises a stator ring and stator windings coupled with one another via a bus bar, and the first end portion of the receptacle is coupled with the stator ring and configured to transmit the electrical power to the stator windings via the stator ring and the bus bar; and
a plug comprising a rigid, conductive rod having a first end portion coupled with the penetrator assembly and a second end portion configured to be at least partially disposed in the hole of the receptacle and detachably coupled therewith, the rigid, conductive rod configured to electrically couple the penetrator assembly with the receptacle.

8. The interface of claim 7 , further comprising a conductive contact disposed in the hole of the receptacle and extending circumferentially about an inner surface of the second end portion defining the hole, the conductive contact configured to electrically couple the plug and the receptacle with one another.

9. The interface of claim 7 , further comprising a sleeve disposed circumferentially about and coupled with the rigid, conductive rod between the first end portion and the second end portion of the rigid, conductive rod.

10. The interface of claim 9 , wherein the sleeve further comprises a protuberance disposed radially outward from the second end portion of the rigid, conductive rod and configured to engage an outer circumferential surface of the receptacle to thereby provide a fluid tight seal therebetween.

11. The interface of claim 10 , wherein the protuberance and the second end portion of the rigid, conductive rod at least partially define an annular volume therebetween, the annular volume having a dielectric gel disposed therein.

12. The interface of claim 7 , further comprising a shell extending circumferentially about and coupled with the receptacle, the shell configured to at least partially insulate the receptacle from process fluid contained in the motor-compressor.

13. The interface of claim 12 , further comprising a coating disposed about at least a portion of the shell and at least a portion of the stator of the motor, the coating configured to at least partially insulate the receptacle and the stator from the process fluid contained in the motor-compressor.

14. A motor-compressor comprising:
a housing having a motor disposed therein, the housing defining an aperture extending therethrough;
a penetrator detachably coupled with the housing about the aperture and configured to transmit electrical power to the motor;
a conduit coupled with a power source located external to the housing and the penetrator, the conduit configured to transmit the electrical power from the power source to the penetrator;
a receptacle coupled with a stator of the motor;
a rigid, conductive plug having a first end portion coupled with the penetrator and a second end portion configured to be detachably coupled with the receptacle, the rigid, conductive plug configured to electrically couple the penetrator with the receptacle; and
a coating disposed about at least a portion of the receptacle and at least a portion of the stator of the motor, the coating configured to at least partially insulate the receptacle and the stator from the process fluid contained in the motor-compressor.

15. The motor-compressor of claim 14 , wherein the coating is poly(ether ether) ketone.

16. The motor-compressor of claim 14 , wherein a first end portion of the receptacle is coupled with the stator and a second end portion defines a hole at least partially extending therethrough, the hole configured to receive the second end portion of the rigid, conductive plug.

17. The motor-compressor of claim 14 , further comprising a sleeve disposed circumferentially about and coupled with the rigid, conductive plug, the sleeve configured to engage an outer circumferential surface of the receptacle to thereby provide a fluid tight seal therebetween.

Assignees

• Gilarranz Jose L
• Maier William C
• Egan William C
• Moehle Axel
• Gels Patrick
• Festa Marco
• Bethge Andreas
• Benestad Pal
• Nelson Jonas
• Dresser-Rand Company

Inventors

• Gilarranz Jose L
• Maier William C
• Egan William C
• Moehle Axel
• Gels Patrick
• Festa Marco
• Bethge Andreas
• Benestad Pal
• Nelson Jonas

Classifications

• H02K5/225

  Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132) · CPC title

• F04B45/06

  having tubular flexible members (F04B45/02, F04B45/08 take precedence) · CPC title

• H02K5/10

  with arrangements for protection from ingress, e.g. water or fingers · CPC title

• H01R13/5219

  Sealing means between coupling parts, e.g. interfacial seal · CPC title

• H02K2203/09

  Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations · CPC title