Triggered Spark Gap Ratings
O -A
PerkinElmer Range, kV
Model
Min/Max
No.
(1,10)
(2)
GP-89
GP-90
GP-91
GP-93
GP-82B
GP-31B
GP-20B
GP-46B
GP-85
GP-86
GP-87
GP-70
GP-30B
GP-22B
GP-12B
GP-14B
GP-41B
GP-32B
GP-15B
GP-74B
GP-81B
0.7
1.3
4.4
8
0.4
2
3.5
8
2
6
10
12
2
6
10
12
12
20
25
40
40
(3)
VT
Min Trig
(kV Open
SBV, kV
(4)
Circuit
(5)
C
10
C
A,C
A, C
A,B
10
TR-148A
30
TR-180B
300
TR-180B
Typical Delay Time*
Trigger
Mode
Recommended
* when operated in mode A
(Nanoseconds)
PerkinElmer
Transformer At 70% SBV At 40% SBV
(6, 7)
TR-148A
100
1000
Simultaneous Ratings Simultaneous Ratings
Crowbar Service,
Typical Life:
5000-20,000 Shots
(11)
Repetitive Switching
Typical Life:
1-5 Million Shots
(11)
2.1
3.4
10
20
1.6
6
11
20
6
15
24
36
6
15
24
36
36
48
60
100
100
2.6
4.2
12.5
25
2
7.5
14
25
8
20
30
42(8)
7.5
19
30
42(8)
42
60(8)
86(8)
120(8)
120(9)
20
20
20
20
5 kA peak
0.1 coulomb
3 millicoulombs/shot
lb = 35 mAdc
lp = 6 Aac
7.5 kA peak
0.2 coulomb
4 millicoulombs/shot
lb = 60 mAdc
lp = 8 Aac
A
A,B
A
TR-1795
TR-180B
TR1700
30
300
25 kA peak
0.4 coulomb
4 millicoulombs/shot
lb = 100 mAdc
lp = 10 Aac
A,B
TR-1795
A
TR-1700
30
300
50 kA peak
0.5 coulomb
10 millicoulombs/shot
A,B
A
TR-1795
TR-1700
TR-1795
30
300
A
TR-1700
30
300
Peak currents up to 100 lb = 200 mAdc
kA and charge transfer lp = 15 Aac
up to 5 coulombs are
obtainable at reduced
life (100-1000 shots).
Notes
1.
Optimum operating voltage is typically 60 to 80% of SBV.
2.
Operation below minimum value may result in erratic firing
over time.
3.
Operation at this value may result in self-firing over time.
4.
Represents minimum main-gap breakdown voltage with no
trigger applied.
5.
Value shown contains safety factor for end-of-life requirements.
6.
PerkinElmer TM-11A Trigger Module can be used to trigger
all gaps.
7.
Transformers listed vary mechanically and electrically. See
PerkinElmer Transformer Data Sheet.
8.
These units must be operated in a liquid or gas dielectric to prevent
external flashover: GP-70 and GP-14B, above 24 kV; GP-32B and
GP-15B, above 35 kV; GP-74B and GP-81B, above 60 kV.
9.
Designed for high altitude, high holdoff conditions.
10.
Other voltage ranges and mechanical configurations are available
on request; for example, the GP-20B can be supplied with a 6 to
16 kV operating range by specifying GP-20B-20. The 20 would be
the SBV and E-E maximum would be 80% of SBV = 16kV.
11.
E = Stored energy in joules ( 1/2CV
2
), lb = average current in
amperes, lp = RMS current in amperes, R = total circuit resistance
in ohms, P = average power in watts.
page 2
PerkinElmer
Optoelectronics
PERKINELMER [ PERKINELMER OPTOELECTRONICS ]
