Siemens L-828 manual Short-Circuit Test Open-Circuit Test

Page 40

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz)

Maintenance

2. Maintenance Schedule

(contd.)

Short-Circuit Test

Open-Circuit Test

WARNING: Since high open-circuit voltages may result by opening the primary of a series lighting circuit, only personnel authorized to work on high-voltage equipment should be allowed to perform the short-circuit test.

To perform the short-circuit test, perform the following procedure:

1.Remove input power to the regulator (turn off disconnect switch or main circuit breaker) and turn the rotary switch to OFF.

2.Remove leads from output terminals and bushings. Use AWG 8 or larger wire to short output bushings.

3.Energize the regulator and turn the rotary selector switch to the lowest brightness step (B1 for 5-Step, B10 for 3-Step) and then to the remaining brightness steps. Check the output current on the ammeter at each step.

NOTE: The output current should be within the tolerance given in Table 2-8. The panel meter is intended to indicate function. Any calibrations should be performed with a calibrated true RMS current meter.

4.If the output current is not within the limits specified in

Table 2-7, check the input voltage to the regulator. The supply voltage should be within –5% to +10% of the nominal input voltage given on the regulator nameplate. Refer to Adjustment Procedures in the Operation section.

5.Turn off disconnect switch or main circuit breaker to remove input power to regulator.

6.Disconnect the shorting jumper and reconnect output cables.

7.Close input-power disconnect switch or main circuit breaker.

WARNING: Since high open-circuit voltages may result by opening the primary of a series lighting circuit, only personnel authorized to work on high-voltage equipment should be allowed to perform the open-circuit test.

To perform the open-circuit test, perform the following procedure:

1.Remove input power to regulator (turn off disconnect switch or main circuit breaker) and turn the rotary switch to OFF.

2.Disconnect cables from the output terminals and bushings.

2002 Siemens Airfield Solutions, Incorporated

96A0104B

Page 5-3

All rights reserved

Issued 6/02

 

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Contents Constant Current Regulators LC-Type 5, and 10 kW/6.6 A/60 Hz Record of Changes Rev Description EC No Checked Approved DateTable of Contents CCRs LC-Type 4, 7.5, and 10 kW/6.6 A/60 Hz Table of Contents List of Figures List of Tables L-828 CCRWarranties Disclaimers Safety Introduction Safety SymbolsSafety Symbols contd Qualified Personnel Intended Use Installation Installation contd Operation CCRs LC-Type 4, 7.5, and 10 kW/6.6 A/60 Hz Safety Description Introduction4, 7.5, and 10 kW CCRs are designed to Indicators Indicator PurposeCCRs LC-Type 4, 7.5, and 10 kW/6.6 A/60 Hz Description Contactor TransformersHz LC-Type L-828 CCRs 10 kW/6.6 a Required EquipmentInput Power Breaker Sizing SpecificationsRatings ClassStyle Power Factor Efficiency Reactive Loading Class Style Brightness Nominal Output PowerResistive Loading Class Style Step Nominal Output Allowable RangeTemperature Range Regulation Environmental Operating ConditionsRelative Humidity Altitude4340 W CCR Dimensions WeightLb kg Section Installation Floor MountingRack Mounting Description Quantity Manufacturer Part NumberWiring Connections and Startup Rack Mounting contdWiring Connections Startup contd Remote Control Wiring 3-Step Wiring Connections Startup contd Remote on-command voltage Terminal Block TB2 Label FunctionIf you use 3-Step CCR Remote Intensity Connect CCI to… Step… If you use 5-Step CCR Remote IntensityWiring Connections TP9Wiring Connections Startup contd Calibrating Regulator Setting Up Regulator for Calibration Adjusting Output CurrentAdjusting Overcurrent Adjusting Output Current contdCCR S1 Position Ammeter Reading Potentiometer Adjusting Overcurrent contd Operation If you set switch S1 Result is To the followingIntroduction Local Control Remote Control Shutdown Procedure Local Control ProceduresThen Maintenance Maintenance Schedule Interval Maintenance Task ActionShort-Circuit Test Open-Circuit Test Open-Circuit Test contd Troubleshooting Preliminary Troubleshooting Circuit Breaker/Fuses Description FunctionGeneral Troubleshooting Procedures General Troubleshooting Procedures contd Problem Possible Cause Corrective Action Regulator shuts VA-Indicator redDown from open Circuit protectionProblem Possible Cause Corrective Action VA-Indicator red LED light lit contdParts Introduction Using the Illustrated Parts ListPart Number Description Quantity 828 CCR 4-10 kW/6.6 a Part Ordering Code Input Voltage828 CCR General Assembly 4-10 kW/6.6 a Parts List 828 CCR General Assembly 4-10 kW/6.6 a Parts List contd LC-Type L-828 CCR Component Parts 1LC-Type L-828 CCR Component Parts 2 LC-Type L-828 CCR Component Parts 3 LC-Type L-828 CCR Component Parts 4of Parts List contd Assembly 4-10 kW/6.6 a828 CCR General CCR See -2. Refer below for the part numbers for the 7.5 kW See -2. Refer below for the part numbers for the 10 kW 828 CCR General Recommended Spare Parts KW/480 VacKW/208-240 Vac Part Number Description10 kW/208-240 Vac 10 kW/480 VacSection Wiring Schematics LC-Type L-828 CCR Internal Wiring Schematic Part 1 LC-Type L-828 CCR Internal Wiring Schematic Part 2

L-828 specifications

The Siemens L-828 is a state-of-the-art aircraft communication and navigation system that is designed to enhance efficiency and safety in aviation operations. This system is equipped with a range of advanced features that cater to the evolving needs of modern air traffic management and avionics.

One of the standout characteristics of the L-828 is its versatile communication capabilities. It incorporates VHF and UHF radio systems, enabling flexible and reliable communication between pilots, air traffic controllers, and other aircraft. The system supports both voice communication and data link services, ensuring that critical information is exchanged seamlessly during flight operations.

In terms of navigation, the Siemens L-828 is equipped with cutting-edge Global Navigation Satellite System (GNSS) technology. This allows for precise positioning and navigation, essential for modern pilotage in complex airspace environments. With built-in performance monitoring, the system can also provide predictive analytics, which enhances situational awareness for pilots and ground controllers.

The architecture of the L-828 is designed for ease of integration with existing aircraft systems. Its modular design allows for straightforward upgrades and the incorporation of additional functionalities as aviation technology continues to evolve. This adaptability ensures that operators can extend the lifespan of their investment by easily implementing new features without requiring a complete system overhaul.

Another key feature of the Siemens L-828 is its robust cybersecurity measures. In an era where the threat of cyberattacks is growing, the system employs advanced encryption techniques and authentication protocols to safeguard sensitive communications and data. This emphasis on security ensures that both operational integrity and passenger safety are maintained.

Moreover, the Siemens L-828 has user-friendly interfaces that reduce pilot workload and enhance overall flight experience. With intuitive controls and clear displays, pilots can easily access critical information, thereby facilitating smoother and safer flight operations.

In conclusion, the Siemens L-828 represents a significant advancement in aviation communication and navigation technology. Its combination of versatile communication capabilities, advanced navigation systems, modular design, and heightened security protocols makes it a crucial tool for modern aircraft. As the aviation industry continues to evolve, systems like the L-828 will undoubtedly play an indispensable role in optimizing flight operations and ensuring safety in the skies.
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