A vacuum-capacitor-type instrument voltage transformer (1) is equipped with a main capacitor (2) and an insulating tube (3) that accommodates the main capacitor (2). A voltage dividing capacitor (4) is connected to the main capacitor (2) in series. The main capacitor (2) is equipped with a plurality of vacuum capacitors (2a) to (2c) that are connected in series. A high-voltage-side electrode (6) is provided on a high-voltage side of the insulating tube (3), and a ground-side electrode (7) is provided on its low-voltage side. The high-voltage-side electrode (6) is equipped with a high-voltage shield (8). Electrostatic capacity of the vacuum capacitor (for example, the vacuum capacitor (2a)) disposed on the high-voltage side is set to be greater than electrostatic capacity of the vacuum capacitor (for example, the vacuum capacitor (2b)) disposed on the low-voltage side.

A portable generator system is used to provide temporary electrical power. The portable generator system has a vehicle, a generator, a step-up system, and a output interface. The step up system has one or more transformers for stepping up a voltage of the generator to a distribution voltage.

A portable generator system is used to provide temporary electrical power. The portable generator system has a vehicle, a generator, a step-up system, and a output interface. The step up system has one or more transformers for stepping up a voltage of the generator to a distribution voltage.

A cover unit for a converter head of a high-voltage converter device includes a flat, preferably planar, cover element and an RIV shielding device peripherally surrounding the cover element for shielding radio interference voltage. The RIV shielding device is formed by a plurality of RIV shielding elements distributed peripherally on the edge of the cover element. The RIV shielding elements each have a substantially cylindrical shape, in particular a capsule shape. A corresponding converter head and a corresponding high-voltage converter device are also provided.

The present disclosure pertains to systems and methods for detecting traveling waves in electric power delivery systems. In one embodiment, a system comprises a capacitance-coupled voltage transformer (CCVT) in an electric power delivery system, the CCVT comprising a first capacitor disposed between an electrical bus and a first electrical node, and a second capacitor electrically disposed between the first electrical node and a ground connection. A resistive divider in electrical communication with a first node may generate a resistive divider electrical signal corresponding to a voltage value. An intelligent electronic device (IED) in electrical communication with the resistive divider monitors a resistive divider voltage signal. The IED detects a traveling wave based on the resistive divider voltage signal and a measurement of a primary current through an electrical bus in electrical communication with the CCVT; and analyzes the traveling wave to detect a fault on the electric power delivery system.

The present disclosure pertains to systems and methods for detecting traveling waves in electric power delivery systems. In one embodiment, a system comprises a capacitance-coupled voltage transformer (CCVT) in an electric power delivery system, the CCVT comprising a first capacitor disposed between an electrical bus and a first electrical node, and a second capacitor electrically disposed between the first electrical node and a ground connection. A resistive divider in electrical communication with a first node may generate a resistive divider electrical signal corresponding to a voltage value. An intelligent electronic device (IED) in electrical communication with the resistive divider monitors a resistive divider voltage signal. The IED detects a traveling wave based on the resistive divider voltage signal and a measurement of a primary current through an electrical bus in electrical communication with the CCVT; and analyzes the traveling wave to detect a fault on the electric power delivery system.

An RC voltage divider includes a secondary part connected to a primary part. The secondary part has a coaxial build up, assembly, configuration or alignment.

An RC voltage divider includes a secondary part connected to a primary part. The secondary part has a coaxial build up, assembly, configuration or alignment.

The present disclosure pertains to systems and methods for detecting traveling waves in electric power delivery systems. In one embodiment, a system comprises a capacitance-coupled voltage transformer (CCVT) in an electric power delivery system, the CCVT comprising a first capacitor disposed between an electrical bus and a first electrical node, and a second capacitor electrically disposed between the first electrical node and a ground connection. A resistive divider in electrical communication with a first node may generate a resistive divider electrical signal corresponding to a voltage value. An intelligent electronic device (IED) in electrical communication with the resistive divider monitors a resistive divider voltage signal. The IED detects a traveling wave based on the resistive divider voltage signal and a measurement of a primary current through an electrical bus in electrical communication with the CCVT; and analyzes the traveling wave to detect a fault on the electric power delivery system.

The present disclosure pertains to systems and methods for detecting traveling waves in electric power delivery systems. In one embodiment, a system comprises a capacitance-coupled voltage transformer (CCVT) in an electric power delivery system, the CCVT comprising a first capacitor disposed between an electrical bus and a first electrical node, and a second capacitor electrically disposed between the first electrical node and a ground connection. A resistive divider in electrical communication with a first node may generate a resistive divider electrical signal corresponding to a voltage value. An intelligent electronic device (IED) in electrical communication with the resistive divider monitors a resistive divider voltage signal. The IED detects a traveling wave based on the resistive divider voltage signal and a measurement of a primary current through an electrical bus in electrical communication with the CCVT; and analyzes the traveling wave to detect a fault on the electric power delivery system.