GENERATOR CONTROL UNIT (GCU) FOR AIRBUS A340 CIVIL AIRCRAFT. THE UNIT CONSISTS OF A COMPACT CAST ALUMINIUM HOUSING CONTAINING A SERIES OF PRINTED CIRCUIT BOARDS. THE UNIT CONTROLS THE VOLTAGE COMING FROM THE GENERATOR KEEPING IT AT A CONSTANT AND PROVIDING OVER VOLTAGE PROTECTION. IT IS ALL PERFORMED ELECTRONICALLY WITH THE UNIT SENSING VARIOUS PARAMETERS AND COMPARING THEM WITH A STANDARD. IT CONTROLS THROUGH THE FIELD EXCITATION CIRCUIT WHICH MAKES ADJUSTMENTS THROUGH THE FIELD WINDING.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 9032 - AUTOMATIC REGULATING OR CONTROLLING INSTRUMENTS AND APPARATUS GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 903289 - OTHER INSTRUMENTS AND APPARATUS; OTHER THAN HYDRAULIC OR PNEUMATIC TARIC CODE 9032890010 - FOR USE IN CIVIL AIRCRAFT ALSO CLASSIFIED IN ACCORDANCE WITH NOTE 7(B) TO CHAPTER 90 HARMONIZED SYSTEM EXPLANATORY NOTES (HSEN) NOTE (II) TO HEADING 9032