Practical power system protection

... of the reactor is smaller and thus cheaper. Practical Power Systems Protection 10 Practical Power Systems Protection Total assymetry factor Power factor 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 2.55 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Practical ... inductive circuit. 3.2.4 Power and power factor In a DC system, power dissipated in a system is the product of volts...

Ngày tải lên: 12/12/2013, 21:37

... port P power in dB. p power (not in dB). p avail,j available power at interface j (preceding module j ) PM phase modulation p out,j output power at interface j (preceding module j ) PPSD phase power ... First there must be a system and, before that, a system design. In the early stages of system design we use a general knowledge of the per- formance available from various sys...

Ngày tải lên: 02/03/2013, 17:00

... reactive power. 2.2 Mathematical model of power systems with UPFC devices The objective of this section is to give a power flow model for a power system with a UPFC device. Modified Newton-Raphson ... increasing power transfer capability of the existing power transmission lines. This proposed HRGAPSO methodology is also effective for the optimal locating of the UPFC in the...

Ngày tải lên: 05/09/2013, 15:28

...  󰏜󰪾󲮣          E󰩨e󴃒󲢞󰭲󶆒 of Power System         󲮣 

Ngày tải lên: 09/09/2013, 20:29

... that power system is the blood vessels and nerve cells of a ship. For a marine power system, both direct current (DC) and alternating current (AC)will be adopted, and the system consists of power ... emergency power station possesses an independent distribution system of its own. Should the main power station break down and should accordingly the power supply fail, the...

Ngày tải lên: 24/10/2013, 01:15

... xácđnh hng và công sut ca nó t l vi bình 152 CHNG7: POWER SYSTEM BLOCKSET  §1.KHÁINIMCHUNG  Power System Blocksetđcthitkđcungcpchochúngtacôngc hiu ... BâygichnmenuTool|InitialValueofStateVariablesđhinthcác giátrkhiđucacácbintrngthái.Cácgiátrkhiđunàyđcđtđ btđusimulationtrngtháixá...

Ngày tải lên: 28/10/2013, 06:15

... SCADA-PDCS và bài học thực tế ñể thảo luận 6. TÀI LIỆU THAM KHẢO: Khóa ñào tạo về SCADA & Power System hướng dẫn bởi Dr. David Challis

Ngày tải lên: 21/11/2013, 13:49

... 0 S D 0 0 0 D+D A D+D A +D P + – – + – – + – – G Power Mitsubishi Power System Stabilizer (PSS) A POWER SYSTEM STABILIZER (PSS) which is installed in the Automatic Voltage Regulator of the Generator, can improve the power system stability. ... Accelerating Power Type PSS ( Power System Stabilizer ) time (sec) Power AVR without PSS Step respnse of voltage reference AVR...

Ngày tải lên: 01/01/2014, 21:14

... behavior of the protection model, as well as its resultant Petri Net (Fig. 2 (b)), can be summarized as follows: TP FAIL Protection failure; TP REP Protection is repaired; TP TRIP Protection identifies ... just introduced consists in a powerful tool to model power systems. Phenomena like component failure, short-circuit, lightning, etc, are always present in real systems and occur ra...

Ngày tải lên: 03/01/2014, 19:35