GP-89 Datasheet, PDF (2/4 Pages) PerkinElmer Optoelectronics – Triggered Spark Gaps

Triggered Spark Gap Ratings
O -A
PerkinElmer Range, kV
Model Min/Max
No.
(1,10)
SBV, kV
VT
Min Trig
(kV Open
Circuit
(2) (3) (4)
(5)
GP-89 0.7 2.1 2.6
GP-90 1.3 3.4 4.2
10
GP-91 4.4 10 12.5
GP-93 8
20
25
GP-82B 0.4 1.6
2
GP-31B 2
6
7.5
10
GP-20B 3.5 11
14
GP-46B 8
20
25
GP-85 2
6
8
GP-86 6
15
20
20
GP-87 10 24
30
GP-70 12 36 42(8)
GP-30B 2
6
7.5
GP-22B 6
15
19
20
GP-12B 10 24
30
GP-14B 12 36 42(8)
GP-41B 12 36
42
GP-32B 20 48 60(8)
20
GP-15B 25 60 86(8)
GP-74B 40 100 120(8)
20
GP-81B 40 100 120(9)
Trigger
Mode
C
C
A,C
A, C
A,B
A
A,B
A
A,B
A
A,B
A
A
Typical Delay Time* Simultaneous Ratings Simultaneous Ratings
Recommended * when operated in mode A Crowbar Service, Repetitive Switching
PerkinElmer
(Nanoseconds)
Typical Life:
Typical Life:
Transformer At 70% SBV At 40% SBV 5000-20,000 Shots 1-5 Million Shots
(6, 7)
(11)
(11)
TR-148A
5 kA peak
100
1000
TR-180B
0.1 coulomb
TR-148A
30
TR-180B
7.5 kA peak
300
0.2 coulomb
TR-1795
TR-180B
30
TR1700
300
25 kA peak
0.4 coulomb
3 millicoulombs/shot
lb = 35 mAdc
lp = 6 Aac
4 millicoulombs/shot
lb = 60 mAdc
lp = 8 Aac
4 millicoulombs/shot
lb = 100 mAdc
lp = 10 Aac
TR-1795
30
TR-1700
TR-1795
TR-1700
30
TR-1795
30
TR-1700
50 kA peak
300
0.5 coulomb
10 millicoulombs/shot
Peak currents up to 100 lb = 200 mAdc
300
kA and charge transfer _{lp = 15 Aac}
up to 5 coulombs are
obtainable at reduced
300
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 (1/2CV²), 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