TISP61089SD POINN [Power Innovations Ltd], TISP61089SD Datasheet - Page 10

• Manufacturer Part Number: TISP61089SD
• Description: DUAL FORWARD-CONDUCTING P-GATE THYRISTORS PROGRAMMABLE OVERVOLTAGE PROTECTORS
• Manufacturer: POINN [Power Innovations Ltd]

TISP61089S
DUAL FORWARD-CONDUCTING P-GATE THYRISTORS
PROGRAMMABLE OVERVOLTAGE PROTECTORS
JULY 1999
section 4.5.9 - Intra-building surge testing
P R O D U C T
10
WAVE SHAPE
WAVE SHAPE
prospective short-circuit current wave shape to be similar to the 1.2/50 open-circuit voltage wave shape. The
TISP61089S will survive the 2x96 A 1.2/50 as its rating is 2x100 A.
Using a 25
fail at these peak current values as they are higher than the TISP61089S ratings.
These tests use a 2/10 wave shape. As shown in table 3, the peak currents for this test are 2x27 A and 17 A.
The TISP61089S can survive both these levels as its rating is 2x120 A.
Compared to TR-NWT-001089, Issue 1, October 1991, GR-1089-CORE, Issue 1, November 1994, the 2/10
alternative of using a CCITT Recommendation K.22 1.2/50-8/20 combination wave generator has been
changed to an IEEE C62.41 1.2/50-8/20 generator. This generator usually has a single output and a fictive
resistance of 2 . The 2/10 generator has fictive output resistances of 15
compensates for this by adding an extra resistances of 12
generator. In practice, this extra resistance causes the prospective short-circuit current wave shape to be
similar to the 1.2/50 open-circuit voltage wave shape. The TISP61089S will survive the 2x27 A 1.2/50 as its
rating is 2x100 A.
Using a 25
will survive these peak current values as they are lower than the TISP61089S ratings.
1.2/50, 8/20
1.2/50, 8/20
(See Text)
(See Text)
2/10
2/10
series resistor will result in table 2. I
series resistor will result in table 3. I
I N F O R M A T I O N
OPEN-CIRCUIT
OPEN-CIRCUIT
VOLTAGE
VOLTAGE
5000
5000
1500
1500
800
800
V
V
table 3. intra-building surge currents
table 2. second-level surge current
SHORT-CIRCUIT
SHORT-CIRCUIT
CURRENT
CURRENT
500
420
100
100
100
T
T
94
A
A
column values of 2x38, 24, 2x37 and 24. The TISP61089S
column values of 2x143 and 2x135. The TISP61089S may
4 + 8/conductor
4 + 12/conduc-
GENERATOR
RESISTANCE
GENERATOR
RESISTANCE
and 6
SOURCE
SOURCE
FICTIVE
FICTIVE
2 + 6
tor
10
15
8
in the output of the 1.2/50-8/20
TOTAL CIRCUIT
and 8 . GR-1089-CORE
RESISTANCE
RESISTANCE
CIRCUIT
TOTAL
50
52
55
48
56
48
2x100
2x96
2x27
2x27
I
A
17
17
T
I
A
T