Siemens L-828 User manual

L-828 Constant Current Regulators
LC-Type
(4, 7.5, and 10 kW/6.6 A/60 Hz)
Document No. 96A0104
Issued: August 16, 1988
Rev. B: June 7, 2002
ETL Certified to FAA Specification
AC 150/5345-10E
Copyright 2002 by Siemens Airfield Solutions, Incorporated. All rights reserved.

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Record of Changes
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page ii
All rights reserved Issued 6/02
Page Rev Description EC No. Checked Approved Date
A Extensively revised manual to include 10
kW CCR. SP ER 8/14/88
All B Reformatted and updated manual. 00883 MH WT 6/7/02
Record of Changes

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Table of Contents
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page iii
All rights reserved Issued 6/02
Record of Changes ................................................................................................................................................ii
Table of Contents.................................................................................................................................................iii
Warranties ...........................................................................................................................................................vi
Section 1 Safety............................................................................1-1
1. Introduction.............................................................................1-1
2. Safety Symbols.........................................................................1-1
3. Qualified Personnel ..................................................................1-2
4. Intended Use............................................................................1-3
5. Installation...............................................................................1-3
6. Operation.................................................................................1-4
7. Action in the Event of a System or Component Malfunction.......1-5
8. Maintenance and Repair...........................................................1-5
Section 2 Description....................................................................2-1
1. Introduction.............................................................................2-1
2. L-828 CCR Monitoring Options..................................................2-2
Optional Scanning Monitor Interface......................................2-2
Optional Scanning Monitor Ready..........................................2-2
3. Indicators.................................................................................2-3
4. Theory of Operation .................................................................2-4
Introduction ..........................................................................2-4
Silicon Control Rectifiers (SCRs)..............................................2-4
Contactor ..............................................................................2-5
Transformers.........................................................................2-5
5. 60 Hz LC-Type L-828 CCRs (4-10 kW/6.6 A):
Required Equipment..........................................................2-5
6. Input Power Breaker Sizing .......................................................2-6
7. Specifications...........................................................................2-6
Ratings..................................................................................2-6
Style......................................................................................2-7
Power Factor .........................................................................2-7
Efficiency...............................................................................2-7
Reactive Loading....................................................................2-7
Resistive Loading...................................................................2-7
Regulation.............................................................................2-8
Environmental Operating Conditions......................................2-8
Protection Devices.................................................................2-8
Maximum Safe Overload........................................................2-9
Input Voltages .......................................................................2-9
Built-In True RMS-Reading Ammeter.......................................2-9
Input Wire Size.......................................................................2-9
Temperature Rise...................................................................2-9
Weight ................................................................................2-10
CCR Dimensions...................................................................2-10
Table of Contents
Safety
Description

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Table of Contents
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page iv
All rights reserved Issued 6/02
Section 3 Installation....................................................................3-1
1. Introduction.............................................................................3-1
2. Unpacking................................................................................3-1
3. Installation...............................................................................3-1
Lifting CCR.............................................................................3-1
Mounting CCR .......................................................................3-1
Wiring Connections and Startup.............................................3-3
Calibrating Regulator...........................................................3-10
Section 4 Operation......................................................................4-1
1. Introduction.............................................................................4-1
2. Local Control............................................................................4-1
3. Remote Control ........................................................................4-2
4. Shutdown Procedure ................................................................4-2
Section 5 Maintenance.................................................................5-1
1. Introduction.............................................................................5-1
2. Maintenance Schedule .............................................................5-2
Short-Circuit Test...................................................................5-3
Open-Circuit Test...................................................................5-3
Section 6 Troubleshooting............................................................6-1
1. Introduction.............................................................................6-1
2. Preliminary Troubleshooting.....................................................6-2
3. General Troubleshooting Procedures.........................................6-3
Section 7 Parts..............................................................................7-7
1. Introduction.............................................................................7-7
2. Using the Illustrated Parts List...................................................7-7
3. L-828 CCR (4-10 kW/6.6 A) Part Ordering Code..........................7-8
4. L-828 CCR General Assembly (4-10 kW/6.6 A) Parts List .............7-9
5. Recommended Spare Parts......................................................7-19
Recommended Spare Parts (4 kW/208-240 Vac) ...................7-19
Recommended Spare Parts (4 kW/480 Vac) ..........................7-19
Recommended Spare Parts (7.5 kW/208-240 Vac) ................7-19
Recommended Spare Parts (7.5 kW/480 Vac)........................7-20
Recommended Spare Parts (10 kW/208-240 Vac) .................7-20
Recommended Spare Parts (10 kW/480 Vac).........................7-20
Section 8 Wiring Schematics.........................................................8-1
1. Introduction.............................................................................8-1
2. Wiring Schematics....................................................................8-1
Installation
Operation
Maintenance
Troubleshooting
Parts
Wiring Schematics

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Table of Contents
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All rights reserved Issued 6/02
Figure 2-1 L-828 CCR...................................................................2-1
Figure 2-2 4-10 kW LC-Type CCRs (with Door Open) .....................2-3
Figure 2-3 LC-Type L-828 CCR Cabinet Dimensions.....................2-10
Figure 3-1 Rack Mount Installation...............................................3-2
Figure 3-2 Rack Mount Hardware Details......................................3-3
Figure 3-3 Location for Cables.......................................................3-4
Figure 3-4 Remote Control Wiring (3-Step)...................................3-5
Figure 3-5 Remote Control Wiring (5-Step)...................................3-5
Figure 3-6 Input/Output Wiring....................................................3-6
Figure 3-7 Control PCB.................................................................3-9
Figure 7-1 60 Hz L-828 CCR (4-10 kW/6.6 A).................................7-8
Figure 7-2 LC-Type L-828 CCR Component Parts (1 of 4).............7-10
Figure 8-1 LC-Type L-828 CCR Internal Wiring Schematic
(Part 1 of 2)............................................................8-3
Table 2-1 L-828 LC-Type CCR Indicators........................................2-3
Table 2-2 Required Equipment Supplied.......................................2-5
Table 2-3 Required Equipment Not Supplied.................................2-5
Table 2-4 Recommended Input Wiring Rating...............................2-6
Table 2-5 Optional Lightning Arrestors.........................................2-6
Table 2-6 CCR Input Current.........................................................2-6
Table 2-7 Style.............................................................................2-7
Table 2-8 Output Current.............................................................2-7
Table 2-9 Maximum Safe Overloads.............................................2-9
Table 2-10 Weight.....................................................................2-10
Table 3-1 Rack/Shelf Mounting Hardware.....................................3-2
Table 3-2 Remote Control Connections ........................................3-7
Table 3-3 Remote 120 Vac Control Connections (3-Step)..............3-8
Table 3-4 Remote 120 Vac Control Connections (5-Step)..............3-8
Table 3-5 Setting 3-Step Output Current Levels..........................3-12
Table 3-6 Setting 5-Step Output Current Levels..........................3-12
Table 4-1 Rotary Switch S1 Position for 3-Step CCRs......................4-1
Table 4-2 Rotary Switch S1 Position for 5-Step CCRs .....................4-2
Table 4-3 Setting Up Remote Control ...........................................4-2
Table 5-1 L-828 CCR (4-10 kW/6.6 A) Maintenance.......................5-2
Table 6-1 Fuses and Circuit Breaker..............................................6-2
List of Figures
List of Tables

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Warranties
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page vi
All rights reserved Issued 6/02
Products of Siemens Airfield Solutions manufacture are guaranteed
against mechanical, electrical, and physical defects (excluding lamps)
for a period of one year from the date of installation or a maximum of
two years from the date of shipment and are guaranteed to be
merchantable and fit for the ordinary purposes for which such
products are made.
Siemens Airfield Solutions will correct by repair or replacement, at its
option, equipment or parts which fail because of mechanical,
electrical or physical defects, provided that the goods have been
properly handled and stored prior to installation, properly installed
and properly operated after installation, and provided further that
Buyer gives Siemens Airfield Solutions written notice of such defects
after delivery of the goods to Buyer.
Siemens Airfield Solutions reserves the right to examine goods upon
which a claim is made. Said goods must be presented in the same
condition as when the defect therein was discovered. Siemens
Airfield Solutions furthers reserves the right to require the return of
such goods to establish any claim.
Siemens Airfield Solutions’s obligation under this guarantee is limited
to making repair or replacement within a reasonable time after
receipt of such written notice and does not include any other costs
such as the cost of removal of defective part, installation of repaired
product, labor or consequential damages of any kind, the exclusive
remedy being to require such new parts to be furnished.
Siemens Airfield Solutions’s liability under no circumstances will
exceed the contract price of goods claimed to be defective. Any
returns under this guarantee are to be on a transportation charges
prepaid basis. For products not manufactured by, but sold by
Siemens Airfield Solutions, warranty is limited to that extended by
the original manufacturer.
This is Siemens Airfield Solutions’s sole guarantee and warranty with
respect to the goods; there are no express warranties or warranties of
fitness for any particular purpose or any implied warranties of fitness
for any particular purpose or any implied warranties other than those
made expressly herein. All such warranties being expressly
disclaimed.
Warranties

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Warranties
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page vi
All rights reserved Issued 6/02
This manual could contain technical inaccuracies or typographical
errors. Siemens Airfield Solutions reserves the right to revise this
manual from time to time in the contents thereof without obligation
of Siemens Airfield Solutions to notify any person of such revision or
change.
Details and values given in this manual are average values and have
been compiled with care. They are not binding, however, and
Siemens Airfield Solutions disclaims any liability for damages or
detriments suffered as a result of reliance on the information given
herein or the use of products, processes or equipment to which this
manual refers. No warranty is made that the use of the information
or of the products, processes or equipment to which this manual
refers will not infringe any third party’s patents or rights. The
information given does not release the buyer from making their own
experiments and tests.
Disclaimers

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Safety
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page 1-1
All rights reserved Issued 6/02
Section 1
Safety
This section contains general safety instructions for using your
Siemens Airfield Solutions equipment. Some safety instructions may
not apply to the equipment in this manual. Task- and equipment-
specific warnings are included in other sections of this manual where
appropriate. Note all warnings and follow all instructions carefully.
Failure to do so may result in personal injury, death, or property
damage.
To use this equipment safely,
•refer to the FAA Advisory Circular AC 150/5340-26, Maintenance
of Airport Visual Aids Facilities, for instructions on safety
precautions.
•observe all safety regulations. To avoid injuries, always remove
power prior to making any wire connections and touching any
parts. Refer to FAA Advisory Circular AC 150/5340-26.
•read and become familiar with the general safety instructions
provided in this section of the manual before installing,
operating, maintaining, or repairing this equipment.
•read and carefully follow the instructions given throughout this
manual for performing specific tasks and working with specific
equipment.
•store this manual within easy reach of personnel installing,
operating, maintaining, or repairing this equipment.
•follow all applicable safety procedures required by your company,
industry standards, and government or other regulatory
agencies.
•obtain and read Material Safety Data Sheets (MSDS) for all
materials used.
Become familiar with the safety symbols presented in this section.
These symbols will alert you to safety hazards and conditions that
may result in personal injury, death, or property and equipment
damage.
1. Introduction
2. Safety Symbols

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Safety
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page 1-2
All rights reserved Issued 6/02
WARNING: Failure to observe this warning may result in
personal injury, death, or equipment damage.
WARNING: Risk of electrical shock. Failure to observe this
warning may result in personal injury, death, or equipment
damage.
WARNING: Disconnect equipment from line voltage.
Failure to observe this warning may result in personal
injury, death, or equipment damage.
WARNING: Wear safety goggles. Failure to observe may
result in serious injury.
CAUTION: Failure to observe may result in equipment
damage.
CAUTION: Contents are static-sensitive. Must be
grounded when handling PCBs.
The term qualified personnel is defined here as individuals who
thoroughly understand the equipment and its safe operation,
maintenance, and repair. Qualified personnel are physically capable
of performing the required tasks, familiar with all relevant safety
rules and regulations and have been trained to safely install, operate,
maintain, and repair the equipment. It is the responsibility of the
company operating this equipment to see that its personnel meet
these requirements.
Safety Symbols (contd.)
3. Qualified Personnel

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Safety
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page 1-3
All rights reserved Issued 6/02
WARNING: Use of this equipment in ways other than
described in this manual may result in personal injury,
death, or property and equipment damage. Use this
equipment only as described in this manual.
Siemens Airfield Solutions cannot be responsible for injuries or
damages resulting from nonstandard, unintended applications ofits
equipment. This equipment is designed and intended only for the
purpose described in this manual. Uses not described in this manual
are considered unintended uses and may result in serious personal
injury, death, or property damage. Unintended uses may result from
taking the following actions:
•making changes to equipment that have not been recommended
or described in this manual or using parts that are not genuine
Siemens Airfield Solutions replacement parts
•failing to make sure that auxiliary equipment complies with
approval agency requirements, local codes, and all applicable
safety standards
•using materials or auxiliary equipment that are inappropriate or
incompatible with your Siemens Airfield Solutions equipment
•allowing unqualified personnel to perform any task
Read the installation section of all system component manuals before
installing your equipment. A thorough understanding of system
components and their requirements will help you install the system
safely and efficiently.
WARNING: Failure to follow these safety procedures can
result in personal injury or death.
•Allow only qualified personnel to install Siemens Airfield
Solutions and auxiliary equipment. Use only approved
equipment. Using unapproved equipment in an approved system
may void agency approvals.
•Make sure all equipment is rated and approved for the
environment in which you are using it.
•Follow all instructions for installing components and accessories.
•Install all electrical connections to local code.
•Use only electrical wire of sufficient gauge and insulation to
handle the rated current demand. All wiring must meet local
codes.
4. Intended Use
5. Installation

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Safety
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page 1-4
All rights reserved Issued 6/02
•Route electrical wiring along a protected path. Make sure they
will not be damaged by moving equipment.
•Protect components from damage, wear, and harsh environment
conditions.
•Allow ample room for maintenance, panel accessibility, and cover
removal.
•Protect equipment with safety devices as specified by applicable
safety regulations.
•If safety devices must be removed for installation, install them
immediately after the work is completed and check them for
proper functioning.
Only qualified personnel, physically capable of operating the
equipment and with no impairments in their judgment or reaction
times, should operate this equipment.
Read all system component manuals before operating this
equipment. A thorough understanding of system components and
their operation will help you operate the system safely and
efficiently.
•Before starting this equipment, check all safety interlocks, fire-
detection systems, and protective devices such as panels and
covers. Make sure all devices are fully functional. Do not operate
the system if these devices are not working properly. Do not
deactivate or bypass automatic safety interlocks or locked-out
electrical disconnects or pneumatic valves.
•Never operate equipment with a known malfunction.
•Do not attempt to operate or service electrical equipment if
standing water is present.
•Use this equipment only in the environments for which it is rated.
Do not operate this equipment in humid, flammable, or explosive
environments unless it has been rated for safe operation in these
environments.
•Never touch exposed electrical connections on equipment while
the power is ON.
Installation (contd.)
6. Operation

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Safety
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page 1-5
All rights reserved Issued 6/02
Do not operate a system that contains malfunctioning components.
If a component malfunctions, turn the system OFF immediately.
•Disconnect and lock out electrical power.
•Allow only qualified personnel to make repairs. Repair or replace
the malfunctioning component according to instructions
provided in its manual.
Allow only qualified personnel to perform maintenance,
troubleshooting, and repair tasks. Only persons who are properly
trained and familiar with Siemens Airfield Solutions equipment are
permitted to service this equipment.
•Always use safety devices when working on this equipment.
•Follow the recommended maintenance procedures in your
equipment manuals.
•Do not service or adjust any equipment unless another person
trained in first aid and CPR is present.
•Connect all disconnected equipment ground cables and wires
after servicing equipment. Ground all conductive equipment.
•Use only approved Siemens Airfield Solutions replacement parts.
Using unapproved parts or making unapproved modifications to
equipment may void agency approvals and create safety hazards.
•Check interlock systems periodically to ensure their effectiveness.
•Do not attempt to service electrical equipment if standing water
is present. Use caution when servicing electrical equipment in a
high-humidity environment.
•Use tools with insulated handles when working with electrical
equipment.
7. Action in the Event of a
System or Component
Malfunction
8. Maintenance and Repair

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Description
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All rights reserved Issued 6/02
Section 2
Description
See Figure 2-1. This section describes the Siemens Airfield Solutions
L-828 constant current regulators (CCRs) LC-Type (4, 7.5, and
10 kW/6.6 A/60 Hz). These CCRs are manufactured according FAA
specification AC 150/5345-10E.
Figure 2-1 L-828 CCR
1. Introduction

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Description
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page 2-2
All rights reserved Issued 6/02
The 4, 7.5, and 10 kW CCRs are designed to
•supply either three or five precision output current levels (6.6 A
maximum) for series lighting circuits on airport runways and
taxiways.
•accurately regulate the output current to within ±3% of the
adjustable nominal level from no load to full load and with input
voltage variations of –5% to +10% of nominal (-40 °C to +55 °C.
Optional input voltages available are 208, 220, 240, and 480 Vac.
The regulators may be operated manually or by 120 Vac or +48 Vdc
remote control signals from a distant location (10,000 feet round trip
using AWG #19 control cable). The universal remote control used in
the LC-Type CCR requires no circuitry changes between 120 Vac and
+48 Vdc remote control signals. Both 120 Vac and +48 Vdc remote
control source signals (CCI) are provided.
Protective circuits automatically shut down the regulators if an
overcurrent or open-circuit occurs in the series lightning circuit. After
an input power loss, operation automatically resumes at the same
brightness level within 5 seconds after input power is restored.
Output lightning and current-surge protection is provided on all
units.
The L-828 CCR monitoring options include Scanning Monitor
Interface (SMI) and Scanning Monitor Ready (SMR).
The optional scanning monitor interface is a relay assembly that can
be mounted internally to the front panel of the CCR. The relay
assembly consists of four relays and sockets. The relay assembly is
used to generate feedback signals concerning the CCRs operation to
the Remote Multiplexer. The relay assembly generates feed back for
the following signals: Remote/local status, commanded ON status,
regulator running status, and primary power status.
The optional scanning monitor ready includes the scanning monitor
interface plus one current transformer (CT) and one potential
transformer (PT). It also has resistor loads, and a fuse in the potential
transformer secondary. Differential signals presenting the actual
series circuit voltage and current are transmitted to the scanning
monitor system two-conductor shielded cables.
1. Introduction (contd.)
2. L-828 CCR Monitoring
Options
Optional Scanning Monitor
Interface
Optional Scanning Monitor
Ready

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Description
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page 2-3
All rights reserved Issued 6/02
See Figure 2-2. Refer to Table 2-1 for the L-828 LC-type CCR
indicators.
Table 2-1 L-828 LC-Type CCR Indicators
Indicator Purpose
NOTE
True rms-reading ammeter (1) Indicates output current, voltage, and VA readings A
Open-circuit (red) LED (2) Indicates circuit open
Overcurrent (red) LED (3) Indicates overcurrent
Overload output LED (4) Indicates low volt-amp output
Regulator ON (green) LED (5) Indicates system in normal operation
NOTE A: Optional digital ammeter is available.
Figure 2-2 4-10 kW LC-Type CCRs (with Door Open)
1. Ammeter 5. REGULATOR ON LED 9. Earth Ground Lug 13. Control PCB
2. OPEN CIRCUIT LED 6. Switch S1 10. TB1 Output
3. OVER CURRENT LED 7. Circuit Breaker CB1 11. Terminal Block TB2
4. LOW VA LED 8. Name Plate 12. Terminal Block TB3
3. Indicators
1
2
3
4
5
6
7
13
8
9
10
11
12

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Description
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All rights reserved Issued 6/02
This subsection describes the L-828 CCR theory of operation.
Current regulation is obtained by using SCRs to switch the supply
power (by varying the On duration of the AC cycle) to the power
transformer and by using feedback circuitry to monitor the
transformer’s output. The brightness level is selected from one of
three or five preset values. Load variation is detected as a change in
the control voltage by the controller. The controller changes the
conduction angle of the AC voltage to the SCRs to adjust the power
flow into the power transformer. This sequence of events
compensates for the load variation and maintains the output current
at the preset level.
See Figure 8-1 in the Wiring Schematics section. When power is
applied to the CCR at TB3 terminals 1 and 2 and the contactor K1 and
circuit breaker CB1 are closed, no current will flow in the primary of
the power transformer T1 until the silicon control rectifiers (SCRs)
receive a trigger pulse. When this pulse occurs, the SCRs turn on.
This allows the current to flow into the primary of the power
transformer T1 until the SCR is switched off by the zero crossing of
the input voltage.
The path of the current flow is from TB3-2 through the circuit breaker
CB1, contractor K1, SCR1 terminals 1 and 3 to L2, L1, and primary of
T1, and back to K1, CB1, and TB3-1. Since alternating current is used
for the regulator operation, after zero-crossing the current flows in
the opposite direction using the other SCR (see SCR1 terminals 1 and
2).
The power level in the primary of the power transformer is controlled
by varying the phase of the conduction angle. If very low output
current is desired, the conduction angle would be near zero degrees,
that is, the SCR is not triggered until the input voltage is near zero-
crossing. Little power is then available to power transformer T1.
For maximum power to occur in the primary of the power
transformer T1, the conduction angle will be near 180 degrees.
Immediately after zero-crossing of the input power sine wave, the
SCR is triggered and operates continuously throughout the 180-
degree duration of the input sine wave.
For 67% power from the power transformer, the conduction angle
will be nearly 90 degrees. This occurs approximately at the voltage
peak of the sine wave when the SCR switches into conduction.
Switching the transformer on-line at this time creates a rather abrupt
rise time, since the sine wave is at its peak voltage. Choke L1 slows
this rapid rise time from the conduction of the SCRs.
4. Theory of Operation
Introduction
Silicon Control Rectifiers
(SCRs)

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Description
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page 2-5
All rights reserved Issued 6/02
In the event of an SCR failure, the contactor provides a means to
break the current driving the primary of the power transformer T1.
Under normal conditions, the contactor K1 (see Figure 8-1 in the
Wiring Schematics section) has no making or breaking current across
it, since the SCR is off when the contactor is opening and closing.
This is accomplished by the coil-control circuitry and provides
increased life for the contactor.
Transformer T6 provides 120 Vac remote control source voltage at
TB2 terminal 8 through fuse F3.
Transformer T3 provides AC voltage to the control PCB. T3 provides
both 120/60 Vac and 36/18 Vac.
Refer to Table 2-2 for required equipment that is supplied. Refer to
Table 2-3 for required equipment that is not supplied. Refer to the
Parts section for ordering information.
Table 2-2 Required Equipment Supplied
Description Quantity
L-828 constant current regulator 1
Instruction manual 1 per order
Table 2-3 Required Equipment Not Supplied
Description Quantity
Input power wire. Refer to Table 2-4. As required
Remote control wire, AWG 19 minimum, AWG 12 maximum As required
Ground wire, AWG 6 minimum As required
Output load wire, AWG 8 minimum, 5000 Vac, L-824 type As required
Shorting jumper wire, AWG 8 minimum As required
Disconnect switch or main circuit breaker 1
Input lightning arrestor. Refer to Table 2-5 for optional lightning arrestors.
NOTE: Standard 2400 Vac customer-supplied lightning arrestors should be used external
to CCR.
As required
Circuit breaker for input power lines. NOTE: The soft-start feature of this CCR eliminates
the need for a special slow-trip circuit breaker on input power lines. 1
Screwdriver 1
Voltmeter, 600 Vdc full scale 1
Voltmeter, 60 Vdc full scale 1
Ammeter, true rms-reading, 10 A maximum scale 1
Ohmmeter 1
Mounting bolts, ½-16 x 1-1/2 in. long, ½ STD washers, and lockwashers 4
Contactor
Transformers
5. 60 Hz LC-Type L-828 CCRs
(4-10 kW/6.6 A): Required
Equipment

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Description
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page 2-6
All rights reserved Issued 6/02
NOTE: Table 2-4 refers to recommended input power supply wire,
less than 100 feet, 90°C, 600 or 5000 V minimum. For 100 to 250
feet, use the next larger (even) gage wire.
Table 2-4 Recommended Input Wiring Rating
kW Rating 208 Vac 220 Vac 240 Vac 480 Vac
4 kW AWG 12, 600 V AWG 12, 600 V AWG 12, 600 V AWG 16, 600 V
7.5 kW AWG 8, 600 V AWG 8, 600 V AWG 10, 600 V AWG 14, 600 V
10 kW AWG 6, 600 V AWG 6, 600 V AWG 6, 600 V AWG 12, 600 V
Table 2-5 Optional Lightning Arrestors
Input Voltage Lightning Arrestor Part Number
208/220/240 Vac 94B0011-2
480 Vac 94B0011-1
It is recommended that the circuit breaker on the input power supply
lines have a rating of 125% of the CCR’s input current, as given in
Table 2-5, unless local codes require a different rating technique.
Refer to the CCR’s nameplate for the kW rating and input voltage to
determine the actual input current from Table 2-5. If no standard-
size circuit breaker exists at the 125% value, use the next larger
standard-size circuit breaker.
NOTE: The currents listed in Table 2-6 represent actual input
currents assuming the worst case limits of AC 150/5345-10E for
power factor, efficiency, and number of required lamps out.
Table 2-6 CCR Input Current
Rating 208 Vac 220 Vac 240 Vac 480 Vac
4 kVA 27 A 26 A 24 A 12 A
7.5 kVA 51 A 48 A 44 A 22 A
10 kVA 68 A 65 A 59 A 30 A
This subsection provides specifications for L-828 CCR
(4-10 kW/6.6 A).
4, 7.5, 10 kW
Class 1, 6.6 A (maximum output current)
6. 60 Hz LC-Type L-828
CCRs (4-10 kW/6.6 A):
Required Equipment (contd.)
6. Input Power Breaker
Sizing
7. Specifications
Ratings
Class

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Description
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page 2-7
All rights reserved Issued 6/02
Refer to Table 2-7 for Style.
Table 2-7 Style
Class Style Brightness
Steps Nominal Output Power
1 1 3 4.8 A, 5.5 A, 6.6 A
1 2 5 2.8 A, 3.4 A, 4.1 A, 5.2 A, 6.6 A
Minimum power factor: 90%
Minimum efficiency: 90%
The CCR maintains the output current within the limits of Table 2-8
for all brightness steps when the load is connected via isolating
transformers, and the secondaries of 50 percent of the transformers
become open-circuited. The load before opening the isolation
transformer secondaries may be any value from half to full load. For
regulators less than 10 kW loaded as specified above, the current
remains below 6.8 amperes for the 100 percent brightness step.
Table 2-8 Output Current
Class Style Step Nominal Output Allowable Range
1 1 B100 6.6 A 6.40-6.80 A*
B30 5.5 A 5.33-5.67 A
B10 4.8 A 4.66-4.94 A
1 2 B5 6.6 A 6.40-6.70 A
B4 5.2 A 5.04-5.36 A
B3 4.1 A 3.98-4.22 A
B2 3.4 A 3.30-3.50 A
B1 2.8 A 2.72-2.80 A
*For the 10 kW CCR only, the allowable range is 6.40 to 6.70 A.
The regulator maintains the output current within the limits of
Table 2-8 while powering any load between no load (or short circuit)
and full load. For regulators 10 kW or larger, the regulation is
maintained over the full range of environmental conditions specified
in this section and for the input voltages specified in Table 2-4. For
regulators less than 10 kW, the regulation is provided at nominal
input voltage for all brightness steps.
Style
Power Factor
Efficiency
Reactive Loading
Resistive Loading

L-828 CCRs LC-Type (4, 7.5, and 10 kW/6.6 A/60 Hz) Description
2002 Siemens Airfield Solutions, Incorporated 96A0104B Page 2-8
All rights reserved Issued 6/02
Refer to Table 2-8 for output current limits. Current regulation is
obtained under the conditions listed in Environmental Operating
Conditions.
The L-828 CCRs (4-10 kW/6.6 A) are designed for indoor use only in
an area with adequate ventilation for cooling the constant current
regulator. The environmental operating conditions include
temperature range, relative humidity, and altitude.
Temperature Range
Without monitoring circuitry: -40 to +55 °C (-40 to +131 °F)
With monitoring circuitry: 0 to +55 °C (-18 to +131 °F)
Relative Humidity
0 to 100% (noncondensing)
Altitude
Sea level to 6,600 ft (2000 m)
L-828 CCRs have the following protection devices:
•Output open-circuit protection
•Output overcurrent protection
•Lightning arrestors on output terminals and bushings
•Fuse protection of remote control supply voltage (48 Vdc and
120 Vac), and power supply for printed circuit board
•Input breaker for supply voltage
•W VA (load wattage in excess of maximum available volt-amperes
Open-Circuit Protection
The regulator includes an open-circuit protective device to open the
primary switch within 2 seconds after an open circuit occurs in the
secondary. The device resets within 2 seconds after the control
switch is turned off and re-energized, and cannot be tripped by
switching the load circuits or other transients.
Regulation
Environmental Operating
Conditions
Protection Devices