公开(公告)号：US20220069564A1

公开(公告)日：2022-03-03

申请号：US17114215

申请日：2020-12-07

Applicant: Itron, Inc.

Inventor： Steven Alexander Grey ,  Dipankar L. Tewari ,  Jaihind Reddy Maddi

IPC: H02H3/22 ,  G01D4/02

Abstract: A high-voltage protection module for a metrology device includes a metal-oxide varistor (MOV) coupled across a mains power line, a resistor electrically coupled to the MOV in series with the MOV, and a fuse electrically coupled to the MOV and the resistor in series, the resistor being located between the fuse and the MOV. The fuse opens upon an overvoltage event disengaging alternating current (AC) power from the mains power line to the metrology device.

公开(公告)号：US12155196B2

公开(公告)日：2024-11-26

申请号：US18466694

申请日：2023-09-13

Applicant: Itron, Inc.

Inventor： Steven Alexander Grey ,  Dipankar L. Tewari ,  Jaihind Reddy Maddi

IPC: H02H3/22 ,  G01D4/02

Abstract: A high-voltage protection module for a metrology device includes a metal-oxide varistor (MOV) coupled across a mains power line, a resistor electrically coupled to the MOV in series with the MOV, and a fuse electrically coupled to the MOV and the resistor in series, the resistor being located between the fuse and the MOV. The fuse opens upon an overvoltage event disengaging alternating current (AC) power from the mains power line to the metrology device.

公开(公告)号：US20240006871A1

公开(公告)日：2024-01-04

申请号：US18466694

申请日：2023-09-13

Applicant: Itron, Inc.

Inventor： Steven Alexander Grey ,  Dipankar L. Tewari ,  Jaihind Reddy Maddi

IPC: H02H3/22 ,  G01D4/02

CPC classification number: H02H3/22 ,  G01D4/02

Abstract: A high-voltage protection module for a metrology device includes a metal-oxide varistor (MOV) coupled across a mains power line, a resistor electrically coupled to the MOV in series with the MOV, and a fuse electrically coupled to the MOV and the resistor in series, the resistor being located between the fuse and the MOV. The fuse opens upon an overvoltage event disengaging alternating current (AC) power from the mains power line to the metrology device.

公开(公告)号：US20240006876A1

公开(公告)日：2024-01-04

申请号：US17853049

申请日：2022-06-29

Applicant: Itron, Inc.

Inventor： Andrew Lancaster ,  Dipankar L. Tewari

IPC: H02H7/20 ,  H02H1/00 ,  G01R19/165 ,  G01R15/04 ,  G01R22/06

CPC classification number: H02H7/20 ,  H02H1/0007 ,  G01R19/16576 ,  G01R15/04 ,  G01R22/06

Abstract: A method, apparatus, and system for providing an input overvoltage protection are disclosed. A voltage monitor may monitor input voltage to an electricity meter and output a reference voltage associated with, or based at least in part on, the input voltage. A ground switch may electrically connect a first ground to a second ground allowing current to flow from the second ground to the first ground and charge a bulk capacitor up to a predetermined level when the reference voltage is less than or equal to a threshold voltage, and electrically disconnect the first ground from the second ground and prevent from charging the bulk capacitor higher than the predetermined level when the reference voltage is greater than the threshold voltage.

公开(公告)号：US11764567B2

公开(公告)日：2023-09-19

申请号：US17114215

申请日：2020-12-07

Applicant: Itron, Inc.

Inventor： Steven Alexander Grey ,  Dipankar L. Tewari ,  Jaihind Reddy Maddi

IPC: H02H3/22 ,  G01D4/02

CPC classification number: H02H3/22 ,  G01D4/02

Abstract: A high-voltage protection module for a metrology device includes a metal-oxide varistor (MOV) coupled across a mains power line, a resistor electrically coupled to the MOV in series with the MOV, and a fuse electrically coupled to the MOV and the resistor in series, the resistor being located between the fuse and the MOV. The fuse opens upon an overvoltage event disengaging alternating current (AC) power from the mains power line to the metrology device.