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Lightning Transient Generator
 

 

Manufactured and Serviced in North Hollywood CA

  Lightning Transient Generator

Picture

Model

Features

 

 

2654-1

 

2654-2

 

RTCA DO-160E, Section 22

 Meets Levels 1 through 3

 

DATA

(Old 2654-1 Datasheet)

 

The Solar Model 2654-2
Lightning Generator synthesizes electrical impulses needed for testing susceptibility to transients induced in aircraft equipment by lightning strikes.

 

Apparatus Chart 461 ABC

 

Apparatus Chart 461 DE

 

Complete Catalog

The Controller and Power Supply Module


Required in all systems, this module manages control functions and delivers low-voltage system
power. Using a backplane similar to those found in computer designs, it determines which modules
are present and allows the user to select waveforms and determine if they will be delivered as single
strokes, multiple strokes, or, in the case of waveforms 3a and 3b, multiple bursts.


Waveform Timing


The rise and fill times of each waveform are determined by components in each generator module.
The pulse-to-pulse timing of each waveform is tightly controlled by a microprocessor. This allows
multiple-stroke and multiple-burst events to be delivered with either uniform or pseudo-random
pulse spacing. The microprocessor also provides visual and aural cues for the operator about the
status of the system.
 

The High Voltage Power Supply


The high voltage power supply is controlled by means of a knob on the front panel of this module.
This continuously variable supply is capable of delivering over 1100 volts DC, and it can source in
excess of 25 amperes of current for rapidly recharging capacitors between pulses.


The High Voltage Modulator


The output of the high voltage supply is also controlled by a “modulator” circuit which ensures that
the first and succeeding pulses in multi-stroke sequences are delivered at the proper levels. The
Modulator is controlled by the system microprocessor.

System Status Displays

 

Two LCD displays on the front panel of the controller module provide information about the
operation of the system. The upper display of two 16-character lines shows the tiered menu
system used to control the waveform generator. Turning the selector knob prompts the user with
information about:
• Which waveform modules are present in the system;
• Whether a test will use single-stroke, multiple-stroke, or multiple-burst application;
• Whether a test will include 1 or 10 applications, or if it will apply waveforms at 3-second
intervals for 5 or 10 minutes.
The lower, HV power display shows the voltage delivered to the waveform modules plugged into
the system buss. This value is used during the calibration phase of a test to enable the operator to
pre-set or vary waveform amplitudes during testing.
• LCD displays for transient selection and peak voltage.
• Visual and aural annunciators.
• Pulse rate selection options:
• Single pulse
• Multiple strokes (per RTCA/DO-160E, Section 22)
• Multiple bursts (per RTCA/DO-160E, Section 22)
• Multiple-stroke and multiple-burst sequences precisely controlled by a microprocessor.
• Uniform or pseudo-random pulse spacing.
• Field-upgradeable microprocessor firmware.
• Continuously variable high voltage power supply (0-1000 volts).

 

  Transient Source Modules

Picture

Model

Features

 

 

6.4/69 μS Double-Exponential Modules for Waveform 1 and 4

• Low impedance output compatible with pin, induction, and ground coupling devices.

• Single-stroke and multiple-stroke capability.

100 ns/6.4 μS Double-Exponential Module for Waveform 2

• Low impedance output compatible with pin, ground, and induction coupling devices.

• Single-stroke and multiple-stroke capability.

1 and 10 MHz Damped Sine Wave Modules for Waveforms 3a and 3b

• Low impedance output compatible with pin, ground, and induction coupling devices.

• Single-stroke, multiple-stroke, and multiple-burst capability.

40/120 μS Double-Exponential Module for Waveform 5A

• Low impedance output compatible with pin and ground injection coupling.

• Single-stroke and multiple-stroke capability.

The Solar Model 2654-1
Lightning Generator synthesizes electrical impulses needed for testing susceptibility to transients
induced in aircraft equipment by lightning strikes.

 

All modules feature:
• Internal, low ESR/ESL energy storage.
• Clean pulses produced by reliable high-voltage, high-current solid-state devices.
• LED indicators for Module-Selected and Pulse-Initiated conditions.
 

Specifications

Solar Model 2654-1 Module

DO-160E Transient

Transient Format*

Pin Injection Level

Cable Bundle Injection Level

6.4/69 μs**

1

SS, MS

N/A

1 – 3

100 ns/6.4 μs

2

SS, MS

N/A

1 – 3

6.4/69 μs**

4

SS, MS

1-3

1 – 3

1 MHz Sine

3A

SS, MS, MB

1-3

1 – 3

10 MHz Sine

3B

SS, MS, MB

1-3

1 – 3

40/120 μs

5A

SS, MS

1-3

n/a

* SS = Single Stroke, MS = Multiple Stroke, MB = Multiple Burst.

** RTCA/DO-160E, Section 22 transients 1 and 4 are generated using the same module. The remaining transients are produced by separate modules.

115 Volt AC and 230 Volt AC, 47-63 Hz versions are available

 

Injection Probes for RTCA DO-160E

 

Type 9616-1

6 μs / 69 μs

DATA

 

Type 9144-1N

1 MHz

DATA

 

Type 9142-1N

10 MHz

DATA

 

Type 9335-2

1 MHz, 10 MHz

DATA

 

Additional Spike Generators

Picture

Model

Features

Model 9354-1 Transient Pulse Generator

DATA

Designed to meet the requirements of MIL-STD-461E test
method CS116. Also capable of limited testing for RTCA
DO-160E section 22 (Single Stroke to level 4) when used
with the appropriate coupling device.
Generator provides six fixed frequency damped
sinusoidal waveforms as specified in MIL-STD-461E pulse
three double exponential waveforms for RTCA DO-160E.
Variable sweeping through the frequency range 10 KHz
to 100 MHz can be provided with the addition of five
optional Variable Frequency Modules:

Type 9554-10K/100K

10 KHz to 100 KHz

Type 9554-100K/1M

100 KHz to 1 MHz

Type 9554-1M/6M

1 MHz to 6 MHz

Type 9554-6M/50M

6 MHz to 50 MHz

Type 9554-50M/100M

50 MHz to 100 MHz

Step Frequency Module Type 2154-500K/50K provides the nine frequencies available for DEF STD 59-41 testing.

 

DATA

Model 9355-1 Pulse Generator

DATA

Generator provides 35 nanosecond pulse required for test

method CS115 of MIL-STD-461E.

 

Model 7054-1 Spike Generator

 

DATA

Provides a 600 volt, greater than 10 μs pulse for section

17 of RTCA DO-160E when used in conjunction with Type

2201-1 Impedance Matching Pulse Transformer.

 

Model 8282-1 Transient Pulse Generator

 

DATA

Transient generator for Test Method CS06 of

MIL-STD-461C.

 

Model 7399-2 Spike Generator

 

DATA

Generator for the requirements of MIL-STD-1399 with

appendices A, B, C and D.

 

 

 

     

 

 

 Last Updated: June 23, 2017

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An Electro Mechanical Research and Development (EMRAD) Corporation, Company

 
     
 

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