ML17256A683
| ML17256A683 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 04/15/1983 |
| From: | Bricks G, Manley J ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17256A682 | List: |
| References | |
| 0383-03, 383-3, NUDOCS 8305130086 | |
| Download: ML17256A683 (7) | |
Text
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('fÃlligdlflll~w LABORATIO TEST REPORT TEST HO:
0383-03 TEST DATE:
3/21-24/83 REgUESTEp By: Richard Baker, Engineering
SUBJECT:
Fuse Co-ordination gpHUFpCTUgEj:
Bussman Mfg. Div./McGraw Edison Co.
COHCLUSIOHS:
The AGC-1 ampere fuse cleared the circuit, leaving the NON-3 ampere fuse unaffec'ted for each 'test we conducted under the following parameters:
1.
The source voltage xemainedat 125 VDC 2.
The maximum DC current obtainable was 60.,0 amperes.,
8305130086 830502 PDR ADOCK 05000244 P
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PAGE 2 LABORAT TEST REPORT II 0383-03 TEST EQUIPMENT Nicolet Storage
- Scope, Model 1090 Variable DC rectifier, 100 A, 300 V Beckman Model 3030 digital multimeter HP Model 3466A digital multimeter Shunt; 50A/100 MV Blade Switch DESCRIPTION OF DEVICE(S) TESTED Bussman AGC-1 glass cartridge fuse and Bussman NON-3 fiber'
~
c'artridge fuse.
These fuses are used in a series application on a 125 VDC circuit.
The desired operation in case of a circuit malfunction is for the AGC-1 fuse to clear its part of the circuit, leaving the part of the circuit protected by the NON-3 fuse unaffected.
ELE IC PAGE 3 TEST REPORT 5 0383-03 LABORA Y
bESCRIPTION OF TEST (S)
A series circuit was constructed consisting of a variable DC source, 0.002 ohm shunt, fuse holders for each type of fuse, and a blade switch.
The storage scope was connected across the shunt, to monitor both peak current and time duration for the fuse to clear.
The test was conducted by setting the DC current. for nominal steos of 10 amperes from 10 to 60 amperes.
Three of each type of fuse were tested at, each current step.
Closing the blade switch completed the circuit causing current. to flow through all parts of the circuit.
The storage scope was triggered on the voltage drop across the shunt and was therefore able to indicate both peak current and time to clear.
0BSE RYATIONS Each tested fuse was identified with a number and its resistance was measured before and after the test.
The before and after resistance of each NON-3 fuses did not change appreciably during'any test.
All test data was recorded.
TESTS PERFORMED BY: J. Manley/G. Bricks CHECKED BY:
APPROYED BY:
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