Electronic Components Datasheet Search |
|
TISP61089AS Datasheet(PDF) 9 Page - Power Innovations Ltd |
|
TISP61089AS Datasheet(HTML) 9 Page - Power Innovations Ltd |
9 / 16 page PR O D UC T I N FO R M A T IO N 9 OCTOBER 1999 TISP61089AS DUAL FORWARD-CONDUCTING P-GATE THYRISTORS PROGRAMMABLE OVERVOLTAGE PROTECTORS The values of protector current are calculated from the open circuit generator voltage divided by the sum of the total circuit resistance. The total circuit resistance is the sum of the generator fictive source resistance and the TISP61089AS series resistor value. Most generators have multiple outputs and each output connects to an individual line conductor. For those generators that have a single output, each conductor will have an effective generator fictive source resistance of n times the generator fictive source resistance, where n is the number of conductors simultaneously tested. GR-1089-CORE section 4.5.7 - first-level surge testing The two most significant test wave shapes in this section are the high energy 10/1000 and the high current 2/10. As shown in table 1, the peak currents for these surges are 2x20 A and 2x56 A respectively. The protector must survive the 2x20 A 10/1000 surge and the TISP61089AS will do this as its rating is 2x30 A. When both conductors are surged simultaneously the return (anode) current will be 40 A, again the TISP61089AS will survive this as its rating for this condition will be 60 A. Similarly the TISP61089AS will survive the 2x56 A 2/10 as its rating is 2x120 A. The highest protection voltage will be for the 56 A 2/10 wave shape. Under this condition the average rate of current rise will be 56/2 = 28 A/µs. The value of diode and thyristor voltage under this condition is specified in the electrical characteristics. Compared to TR-NWT-001089, Issue 1, October 1991, GR-1089-CORE, Issue 1, November 1994, adds the alternative of using the IEEE C62.41 1.2/50-8/20 combination wave generator for the 2/10 test. This generator usually has a single output and a fictive resistance of 2 Ω. The 2/10 generator has a fictive output resistance 5 Ω, (2500/500), and GR-1089-CORE compensates for this by adding an extra 3 Ω in the output of the 1.2/50- 8/20 generator. In practice, the extra 3 Ω causes the prospective short-circuit current wave shape to be similar to the 1.2/50 open-circuit voltage wave shape. The TISP61089AS will survive the 2x53 A 1.2/50 as its rating is 2x100 A. Using a 25 Ω series resistor will result in table 1. I T column values of 2x83, 2x78, 2x29, 2x19 and 2x29. The TISP61089AS will survive these peak current values as they are lower than the TISP61089AS ratings. GR-1089-CORE section 4.5.8 - second-level surge testing This is a 2/10 wave shape test. As shown in table 2, the peak current for this surge is 2x100 A. The TISP61089AS will survive the 2x100 A 2/10 surge as its rating is 2x120 A. table 1. first-level surge currents WAVE SHAPE OPEN-CIRCUIT VOLTAGE V SHORT-CIRCUIT CURRENT A GENERATOR FICTIVE SOURCE RESISTANCE Ω TOTAL CIRCUIT RESISTANCE Ω IT A 2/10 2500 500 5 45 2x56 1.2/50, 8/20 (See Text) 2500 360 4 + 3 47 2x53 10/360 1000 100 10 50 2x20 10/1000 600 100 6 46 2x13 10/1000 1000 100 10 50 2x20 |
Similar Part No. - TISP61089AS |
|
Similar Description - TISP61089AS |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |