TASK 24-24-00-810-805
Result of the EMER GEN Test Incorrect (Loss of the AC ESS Busbar)
1. Possible Causes
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- CNTOR-AC ESS BUS SWITCHING (15XE)
- wiring
- TIMER (33XE)
- C/B-AC ESS BUS/EMER/CNTOR/SPLY (5XE)
- C/B-AC ESS/BUS/EMER/CNTOR/SPLY (15PC)
- GLC-EMER (2XE)
2. Job Set-up Information
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A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 24-24-00-710-001 Operational Test of the Emergency Generation System AMM 24-24-55-000-001 Removal of the Emergency Generator Line Contactor
R (EMER GLC) (2XE) AMM 24-24-55-000-002 Removal of the AC ESS BUS Contactor (15XE) AMM 24-24-55-400-001 Installation of the Emergency Generator Line
Contactor (EMER GLC) (2XE)
AMM 24-24-55-400-002 Installation of the AC ESS BUS Contactor (15XE)
ASM 24-24/02
ASM 24-35/01
3. Fault Confirmation
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A. Test Do the operational test of the emergency generation system (Ref. AMM TASK 24-24-00-710-001).
(1) If during the test:
on the upper ECAM display unit:
- the ELEC AC ESS BUS FAULT warning comes into view on the lower ECAM display unit:
- the ESS TR voltage is 28VDC
- the line between the EMER GEN and ESS TR boxes comes on green. do the trouble shooting given in Para. 4.B.
(2) If during the test:
on the upper ECAM display unit:
- the ELEC AC ESS BUS FAULT warning comes into view on the lower ECAM display unit:
- the ESS TR voltage is 0VDC
- the EMER GEN voltage and frequency are correct
- the line between the EMER GEN and ESS TR boxes goes off
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May 01/05 CES - the line between the EMER GEN and the AC ESS bus goes off do the trouble shooting given in Para. 4.C.
4. Fault Isolation
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A. Table of the circuit breakers used in this procedure:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------106VU AC ESS BUS/EMER/CNTOR/CTL 5XE B07 106VU AC ESS/BUS/EMER/CNTOR/SPLY 15PC C08
B. If the test confirms the fault:
- do a check of the status of the circuit breakers (5XE) and (15PC).
(1) If these circuit breakers are closed:
- replace the CNTOR-AC ESS BUS SWITCHING (15XE) (Ref. AMM TASK 24-24-55-000-002) and (Ref. AMM TASK 24-24-55-400-002).
(a) If the fault continues:
- do a check of the wiring between respectively: . the pins L3 and B/K of the AC ESS BUS SWITCHING contactor (15XE) . the pin K1 of the contactor (15XE) and the pins A/B then B/B of the AC ESS BUS switching contactor (3XC) through the DC ESS BUS supply contactor (4PC) and the relay (17PC) . the pin B/D of the contactor (3XC) and the pin A/A3 of the timer (33XE) . the pin A/D of the contactor (3XC) and the pin A/A3 of the timer (33XE) . the pin K1 of the contactor (15XE) and the pin A3 of the relay (17PC), through the TR1 and TR2 contactors (5PU1) and (5PU2)
R . the pin B/K of the contactor (15XE) and the pin A/C3 of the
R timer (33XE) . the pin B/L of the contactor (15XE) and the ground, through the timer (33XE) (Ref. ASM 24-24/02) and (Ref. ASM 24-35/01).
R - if the wiring is correct:
R . replace the TIMER (33XE).
(2) If the circuit breaker (5XE) is open:
- close it.
(a) If it trips:
- do a check of the wiring for a short to ground between the circuit breaker (5XE) and the pin B/K of the contactor (15XE) (Ref. ASM 24-24/02).
1 If the wiring is not correct:
_ - repair it.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞24-24-00∞∞∞∞∞∞∞∞∞∞Page 208
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本文链接地址：A320 Trouble Shooting Manual 排故手册 电源 3(28)
