Direct Manufacturer US20180233313A1
H—ELECTRICITY H01—ELECTRIC ELEMENTS H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES H01H50/00—Details of electromagnetic
Direct Manufacturer 1167907 FREQUENCY RELAY FOR USE IN THE PROTECTION OF
ABSTRACT OF THE DISCLOSURE A digital frequency relay for use in protecting an electrical power transmission line in the event of frequency deviations indicative of a fault condition, including an input
Direct Manufacturer 51 results about "Digital protective relay" patented technology
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.
Direct Manufacturer "A Protective Relay"
U.S. Patent 4,742,428 to Comad discloses a protective relay which includes an operating unit that can be withdrawn from an insulating housing through an opening in the front of the housing.
Direct Manufacturer Transformer protection relay device
The embodiment of the present invention relates to a transformer protection relay device. The transformer protection relay device detects an accident in the transformer using a current...
Direct Manufacturer Galvanic isolation for relay device
One example includes a relay device that is comprised of a galvanic isolation barrier, a protection control and power extractor, and an electronic switch. The galvanic isolation barrier is
Direct Manufacturer US Patent Application for Relay Protection Patent Application
A relay protection device is disclosed for use with a magnetic latching relay, the relay having two stable states. The relay comprises an electromagnetic device which under the effect of a switching impulse
Direct Manufacturer State-of-the-art in the industrial implementation of protective relay
The paper summarizes the operating principles of relay applications, the available measurements used by relays and the protection schemes for various faults that occur frequently in
Direct Manufacturer US20090195082A1
Solid state relays generally employ an isolation device between the input device or control signal and the relay. One type of isolator is an opto-isolator which uses a light source and a photodiode to isolate
Direct Manufacturer Microprocessor-based digital protective relay for power transformers
United States Patent 5172329. A stand alone protective apparatus and method is provided for electrical power devices. Power devices can be damaged due to conditions for example
Direct Manufacturer EP1193823A2
Furthermore, a method for frequency protection of a component in an electric network, and a frequency relay, which method and frequency relay comprise determining a restricted value (F lim) of an
Direct Manufacturer Relays patented technology retrieval search results
This page includes the patent name, patent number, legal status, invention/applicant, technical efficacy and accompanying drawings of Relays-related invention patents and utility model patents, which can
Direct Manufacturer US20210313131A1
The electromagnetic relay module of claim 1, wherein the electromagnetic relay module is a safety relay module configured to fulfill a safety-relevant function and wherein the first relay...
Direct Manufacturer Protective relay patented technology retrieval search results
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data. In electrical engineering, a protective relay is a relay device
Direct Manufacturer A hybrid protective relay having enhanced contact response time
The relay op- erates in the manner described within US Patent 5,057,962 entitled "Microprocessor-Based Protective Relay System" whereby a current supplied to the relay coil articulates the relay
Direct Manufacturer Relay-contact lift protection system (versions)
Relay-contact lift protection system (versions) Abstract FIELD: passenger lifts. SUBSTANCE: invention relates to safety devices of passenger lifts provided with mechanical story switches in electric circuits.
Direct Manufacturer PROTECTION RELAY DEVICE
As one example of such networking, a dis-tributed protection relay device has been proposed and put to practical use.
Direct Manufacturer Understanding Protective Relays in Power Systems
Protective relays are critical components in power systems, providing essential protection for various elements such as generator sets, outgoing feeder
Direct Manufacturer U.S. Patent for Relay Patent (Patent # 12,626,875 issued May 12,
The relay is actually an automatic switch that may control a larger current with a smaller current, so that it plays a role of automatic adjustment, safety protection and switching circuits in the circuit. A high
Direct Manufacturer Relay control and protection guides
Protection Relays The relay is a well known and widely used component. Applications range from classic panel built control systems to modern
Direct Manufacturer Types of Electrical Protection Relays or Protective Relays
💡 Key learnings: Protective Relay Definition: A protective relay is an automatic device that senses abnormal conditions in electrical circuits and
Direct Manufacturer Transformer protection relay device
The calculation method will be described later. (First embodiment) Drawing 1 is a figure showing the composition of transformer protection relay system 1 of an embodiment. The transformer protection
Direct Manufacturer A hybrid protective relay having enhanced contact response time
The protective relay of claim 13 including a fuse (26) connected in series with said second triac and said second terminal to protect said photoelectric switch and said semiconductor switch from overcurrent
Direct Manufacturer The Development and Application of Power System
In the sixties and seventies of the 20th century our country began the application of power system relay protection technology, initially it was transistor
Direct Manufacturer U.S. Patent Application for Relay Patent Application (Application
This patent application is a national phase filing under section 371 of PCT/EP2018/083503, filed Dec. 4, 2018, which claims the priority of German patent application