Table Of Contents - Hitachi EC702HP Operation Manual

Section 1 - Introduction
1.1 Purpose of this Manual ................................................ 1-1
1.2 Basic Knowledge Required ......................................... 1-1
1.3 Structure .................................................................................. 1-1
1.4 General Description ..................................................... 1-2
Transmitter's Control System .......................... 1-3
1.4.1
1.4.2 E-Compact ATSC Transmitters Models........... 1-6
1.4.3 Composition..................................................... 1-6
1.4.4 Block Diagram of the System ........................... 1-7
1.4.5 Functional Description of the System .............. 1-8
1.4.5.1 ATSC Digital Exciter............................. 1-8
1.4.5.2 Coaxial Relay (Optional Dual Excitation)
............................................................................... 1-14
3.1
1.4.5.3 Power Splitter ....................................... 1-14
1.4.5.4 UHF Power Amplification System ....
1.4.5.5 Power Combiner ................................. 1-17
1.4.5.6 Loads Bank .......................................... 1-17
1.4.5.7 Filtering System ................................... 1-18
1.4.5.8 RF Sampling Probe ............................ 1-18
1.4.5.9 Power Supplies ................................... 1-18
1.4.5.10 Electrical Distribution Drawer (MCCB)
.............................................................................. 1-19
1.4.5.11 Cooling System ................................... 1-19
1.5 Technical Specification - E-Compact TV ATSC
Transmitters ..................................................... 1-20
1.6 Photo - EC702HP Tansmitter ................................ 1-21
Section 2 - Minimum Installation
Requirements
2.1 Introduction .................................................................. 2-1
2.2 Minimum Requirements............................................... 2-1
2.2.1 Electric Power.................................................... 2-1
2.2.1.1 Grounding ....................................................... 2-1
2.2.1.2 Stability ...................................................................... 2-1
2.2.1.3 Insulation ........................................................ 2-2
2.2.1.4 Wire Gage ......................................................2-4
2.3 Atmospheric Discharge Protection System ................. 2-4
2.3.1 Lightning Arresters ............................................ 2-4
2.3.2 Cable Protectors ................................................ 2-5
2.4 Air Conditioning ............................................................ 2-5
2.4.1 Temperature ............................................................... 2-5
2.4.2 Humidity ............................................................ 2-5
2.4.3 Cooling............................................................. 2-6
Indice
Introduction ....................................................... 3-1
3.2 Inspection ..........................................................3-1
3.3 Installation Recommendations ..........................3-1
3.3.1
3.3.2
3.3.3
connectors ........................................................ 3-2
3.3.4
3.3.5
3.3.6
3.3.7
3.4 Mechanical Drawings ........................................ 3-6
3.4.1 Front View ............................................. 3-6
1-14 3.4.2 Rear View...................................................... 3-7
3.4.3 Side View ....................................................... 3-8
3.4.4 Dimensions (mm) .................................. 3-9
3.4.5 Top view with filter........................................ 3-10
3.5 Front Panel ....................................................... 3-11
3.5.1 Digital Exciter ......................................... 3-11
3.5.2
3.5.3
3.5.4
3.5.5
3.6 Power Network Connections ............................ 3-19
3.6.1
3.6.2
3.7 UNPACKING.............................................................. 3-23
3.8 ON SITE PHYSICALASSEMBLY ..................... 3-33
3.8.1
3.8.2
3.8.2.1
3.8.2.2
Section 4 - Initial Activation
4.1 Introduction ....................................................... 4-1
4.2 Connections and Final Checks .........................4-9
4.3 Possible operations with the Transmitter in
Operation ..........................................................4-9
4.3.1
4.3.2
4.3.3 Forbidden operations ............................. 4-10
4.3.4 Safeguards ............................................. 4-10
4.4 Automatic Power reduction Table ........................ 4-11
1
Section 3 - Installation
Preventive Protection ............................. 3-1
Tower ..............................................................3-2
Fastening of cables, antennas and
Equipment Installation Indoors .............. 3-4
Equipment Grounding ........................... 3-4
Electric Installation Grounding ...............3-5
Power Supply......................................... 3-5
Power Drawer ....................................... 3-14
Rejection Loads Drawer ....................... 3-16
AC Unit Panel........................................ 3-17
Top Panel ...............................................3-18
Power Feeding Options ........................ 3-19
AC Power Cable Connections ............. 3-19
Assembly Instructions ........................... 3-33
Connections ......................................... 3-35
Internal Connections ............................. 3-35
External Connections............................ 3-42
Communication .................................... 4-9
Serial terminal Emulators ......................4-10