Power protection

This article analyzes and evaluates the impact of the Yen Dinh solar power plant in Thanh Hoa, Vietnam when connected to the 22kV power grid such as: reverse power flow, overvoltage, influence of harmonics, changes operational methods for placing economic capacitors and coordinating protection when the plant is connected to the distribution grid are also calculated and analyzed.

8p viyoko 01-10-2024 3 1   Download

This research investigates the relationship between post fault transient overvoltages and the functionality of the digital distance protection. The study is conducted in a 66kV network with a neutral earth resistor as method to earth the power system. This paper begins by performing an extensive power system analysis on ground fault transient overvoltages. The study is conducted by using the PSCAD-EMTC software package.

180p runthenight07 01-03-2023 10 3   Download

The research subjects of the thesis are theoretical and practical issues on the oversight function of the Committee on Judicial Affairs of the National Assembly of Vietnam in the context of innovating the National Assembly’s organization and operation, strengthening the control of state power, protecting human and civil rights, speeding up judicial and administrative reform as well as building Vietnam as a socialist rule-of-law state.

35p kequaidan6 15-07-2020 37 2   Download

This paper has the main objective of presenting some proliferation challenges for the reference version of the Molten Salt Fast Reactor (MSFR), a large power reactor based on the thorium fuel cycle.

7p christabelhuynh 29-05-2020 6 0   Download

System Protection and Control Performance Improvement Initiative –aka SPI Launched April 24, 2009 NERC Board recognition of the importance of system protection to reliability Goal: Improve BES reliability Purpose: Improve the performance of power system Protection Systems through fostering technical excellence in protection and control system design, coordination, and practices.

47p lulanphuong 22-03-2012 67 10   Download

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: Costs of basic methods of forest landmaintenance in protective zones of high-voltage power lines in the Czech Republic...

6p toshiba4 13-09-2011 61 4   Download

The TPIC6B595 is a monolithic, high-voltage, medium-current power 8-bit shift register designed for use in systems that require relatively high load power. The device contains a built-in voltage clamp on the outputs for inductive transient protection. Power driver applications include relays, solenoids, and other mediumcurrent or high-voltage loads.

10p thevan36 12-12-2010 220 14   Download

Radiation Marrow aplasia is a major acute sequela of radiation. Radiation damages DNA; tissues dependent on active mitosis are particularly susceptible. Nuclear accidents can involve not only power plant workers but also employees of hospitals, laboratories, and industry (food sterilization, metal radiography, etc.), as well as innocents exposed to stolen, misplaced, or misused sources.

6p thanhongan 07-12-2010 61 4   Download

International Rectifier's IRAMS10UP60A is an Integrated Power Module developed and optimized for electronic motor control in appliance applications such as washing machines and refrigerators. Plug N Drive technology offers an extremely compact, high performance AC motor-driver in a single isolated package for a very simple design. A built-in temperature monitor and over-temperature/over-current protection, along with the short-circuit rated IGBTs and integrated under-voltage lockout function, deliver high level of protection and fail-safe operation.

17p hoanthuc 16-11-2010 106 15   Download

Meets or Exceeds TIA/EIA-232-F and ITU D D D D D D D D Recommendation V.28 Operates From a Single 5-V Power Supply With 1.0-mF Charge-Pump Capacitors Operates Up To 120 kbit/s Two Drivers and Two Receivers ±30-V Input Levels Low Supply Current . . . 8 mA Typical ESD Protection Exceeds JESD 22 − 2000-V Human-Body Model (A114-A) Upgrade With Improved ESD (15-kV HBM) and 0.1-mF Charge-Pump Capacitors is Available With the MAX202 Applications − TIA/EIA-232-F, Battery-Powered Systems, Terminals, Modems, and Computers. ...

17p son2483 22-10-2010 182 19   Download

The Digital Building Telecommunications Access Guideline Foreword Scope and Purpose Digital River The Process More information and comments Principle 1: Spatial Access and Design 1.1 Introduction 1.2 Communications Network Architectures 1.3 Telecommunications Service Entrance 1.4 Equipment Room 1.5 Backbone Pathways or Riser Shafts 1.6 Telecommunications closets (TC) 1.7 Horizontal pathways 1.8 Radio (Wireless) Facilities Provision 1.9 Standards & References Principle 2: Diversity 2.1 Building Entry Point (BEP) 2.2 Equipment Room 2.3 Riser Shafts 2.

56p qd-tek 28-04-2010 119 13   Download

Department of Interior, major broadband Internet service providers (ISPs), banking institutions, power companies, higher educational institutes, medical organizations, and even small, family-run businesses. From experience we have found that although security as a whole is improving, knowledge growth is still needed in the public sector as well as the private sector. When we originally departed from doing strictly federal government work, we thought that it would be easier to sell this service in the commercial world. We were wrong.

20p thachcotran 04-02-2010 137 27   Download

An Environmental impact statement (EIS), under United States Environmental law, is a document required by the National Environmental Policy Act (NEPA) for certain actions "significantly affecting the quality of the human environment".[1] An EIS is...

50p ngoctuyen 17-06-2009 424 132   Download