PRODUCT LEAFLET Automatic Switch-Over

Compliance Standards ICAO Aerodrome design manual, part 5 IEC (61820, 61821, 61822) Applications The ASO Automatic Switch Over has been designed to detect any failure or breakdown occurring to one constant current regulator from 4 or 5 which are monitored. If the failure causes the regulator to stop, the ASO will switch automatically its load toward another regulator called “stand-by” CCR. The effective transfer of all remote control and signalling functions from the faulty CCR to the stand-by CCR can be also managed by the ASO, or can be carried out by the monitoring system. In this manner,...

GENERAL PRESENTATION Each ASO is delivered into a metal frame with lifting rings. It includes 3 distinct parts: an "electronic" compartment, a “Low voltage” compartment and a "high voltage" compartment . The frame has same dimensions and characteristics that regulators type DIAMANT and type DIAM4X00, to which it can be attached. The Electronic part includes an electronic board whose design uses last numerical technologies; it is fixed at the front panel of the device. This front sheet supports the user interface delivering any useful information, and allowing all local or distant operations....

ELECTRICAL FEATURES Supply: Single-phase 380/400/415 Vac or 220/230/240 Vac ±10%, 50 or 60 Hz ±5% Nominal supply current : <1A Load power (maximum) : 30 kVA Nominal switched current (inputs for CCRs and outputs for loads) : 6.6A Number of managed regulators : 5 monitored CCRs + 1 stand-by CCR Remote control : Voltage, from 20V to 60V DC, or dry contacts or serial network RS485 / Ethernet Back indication: Static dry contacts, 125Vac/70Vdc, 0.1A max, or serial network RS485 / Ethernet PROTECTIONS Lightning arrestors on HV outputs (option) Lightning arrestors on LV intputs (option) USER INTERFACE...

DISPLAY FUNCTIONALITY The ASB carry out the monitoring of 5 operational regulators and a stand-by one. These information are displayed preferably and permanently, using an intuitive symbolic system allowing to know instantaneously the state of the concerned system. To do so, the monitored regulators are named A, B, C, D and E, and SB the Stand-by CCR. DISPLAY EXAMPLES : CCR A, B, C, D, SB are enabled, in remote position without any fault, and CCR E is disabled: CCR A is in stop or local mode, CCR B, C, D are in remote position, enabled without any fault: CCR C is faulty and the C loop is switched...

VALIDATION / INVALIDATION MENU The “CCR validation.” menu is used to validate/invalidate any CCR. When a regulator is indicated as invalidate, it will be no more monitored nor seen by the ASO, and its load cannot be switched. Stand-by CCR : The ASO has to be invalidated in order to prevent any switching (maintenance operation or replacement, for example). OPTION MENU The “Option” menu allows the following definitions: Parameter access: No The change from No to Yes allows to change all other parameters of the ASO. System access: No When parameter is No, the ASO is in “master” mode, in order to...

Automatic Switch Over - ASO ORDERING INFORMATION The Automatic Switch-Over is identified by an ordering code which indicates its type and particularity. If needed, add all useful precision and options Example : S40-IEC-1-4-50-15-400-A1B-001 = ASO compliant to IEC, 6.6A, 50Hz/400V for 15kVA CCRs, with a serial network to monitor the 4 CCRs, ASO monitored by serial link, no brightness control of the SB CCR, and with same lightning arrestors on each way : IEC : Compatible with CCR compliant to IEC (-20°C +55°C, supply +-10%, dielectric 2 x Un + 2500 V) FAA : Compatible with CCR compliant to FAA...

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