G. S. I. Inc.                                                              Godfrey Systems International, Inc.
           Manufacturer & Distributor of Aerospace Lighting                   3051 Pine Street Clearwater, FL. 33763-0914 U. S. A.
                                                                   Tel: (727) 799-4916 Fax:(727) 724-0212
                                        E-Mail: Tim.Godfrey@gsilight.com, gsiinc@knology.net
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ISOLATION TRANSFORMERS


                                        Compliance:

FAA AC 150/5345-47A, ICAO Aerodrome Design Manual: Part 5 Electrical Systems (Note: with 0.15 in² secondary cable), IEC 1836 (Draft)


                                                   Applications:

 Efla's AGL Series Transformers are constructed for use in series circuits in airfield lighting. 

 

                                                                      Features:

Efla's Isolation Transformers have been developed to meet the most rigorous customer specifications, with high regard to quality and installation ease. Designed and manufactured in Finland, Efla understands the special requirements of the Arctic climate. The extreme conditions of tropic and sub-tropic climate have also been accommodated with many installations in those specific regions. Efla's Transformers are quick and easy to install - no special tools required.
                 
 

 

New          LED Lighting Transformers:

 Transformers for LED lights are now available. 

 Smaller, energy saving, AGL-LED Transformers. 

 KR511, KR521, and KR525 (see below under technical data).

 


Efla's AGL Series Transformers are completely waterproof. The encapsulation of the transformer is made of TPE (thermoplastic elastomer), with excellent electrical and mechanical resistance to oil, kerosene, other aircraft fuel, soil acids and alkalis, and other chemicals typically present on an airfield.


               In addition to the standard transformers with 6.6 A / 6.6 A current rating, there is the possibility to offer transformers with 8.3 A / 6.6 A current rating.


                                                    Technical
Data:

◙   Efla Type
With Earthing
Efla Type
Without Earthing
Nominal
Power Rating
Maximum
Circuit Voltage
Current
Rating
Frequency Power   
Factor
KR 511
KR531.1
10-20 W
5000 V
6.6/6.6 A
50/60 Hz
0.97
KR 521
KR 536.1
20 W
5000 V
6.6/6.6 A
50/60 Hz
0.97
KR 525
KR 525.1
7 W
5000 V
6.6 A / 44 V
50/60 Hz
0.97
KR 531
KR 531.1
45 W
5000 V
6.6/6.6 A
50/60 Hz
0.97
KR 536
KR 536.1
65 W
5000 V
6.6/6.6 A
50/60 Hz
0.97
KR 541
KR 541.1
100 W
5000 V
6.6/6.6 A
50/60 Hz
0.97
KR 546
KR 546.1
150 W
5000 V
6.6/6.6 A
50/60 Hz
0.97
KR 551
KR 551.1
200 W
5000 V
6.6/6.6 A
50/60 Hz
0.97
KR 561
KR 561.1
300 W
5000 V
6.6/6.6 A
50/60 Hz
0.97


                                                                         Construction:

The transformers have two copper windings, one primary and one secondary, wound separately on a toroidal magnetic core circuit and insulated completely from each other.


                                 Primary Leads:

 Transformers have two primary leads.

 One lead is with FAA L-823, Style 2 plug.

 One lead is with FAA L-823, Style 9 receptacle.


                                            Secondary Leads:

 The transformers have one secondary lead.

 The lead is with FAA Style 7 receptacle.

 On request, the secondary connector can be equipped with sealing unit PMR 755, in accordance with FAA L-823, Style 8.

 On request, the transformers can be equipped with other cable sizes or other cable lengths.

 

                                                                    Housing:

The plug and receptacle insulation, as well as cable insulation, is manufactured of the same material: Thermoplastic Elastomer (TPE). When it is fully molded together, this material insures complete waterproof construction. The encapsulation is made under high temperature and high pressure.

 

                                 Dimensions:

◙   Efla Type Diameter Length Height Weight   
KR 531, KR 531.1
3.94 in / 100 mm
4.92 in / 125 mm
2.16 in / 55 mm
3.74 lbs / 1.7 kg
KR 536, KR 536.1
5.79 in / 147 mm
7.60 in / 193 mm
2.12 in / 54 mm
6.61 lbs / 3.0 kg
KR 541, KR 541.1
5.79 in / 147 mm
7.60 in / 193 mm
2.12 in / 54 mm
6.61 lbs / 3.0 kg
KR 546, KR 546.1
5.79 in / 147 mm
7.60 in / 193 mm
2.36 in / 60 mm
7.27 lbs / 3.3 kg
KR 551, KR 551.1
5.79 in / 147 mm
7.60 in / 193 mm
2.52 in / 64 mm
8.38 lbs / 3.8 kg
KR 561, KR 561.1
5.79 in / 147 mm
7.60 in / 193 mm
2.87 in / 73 mm
10.58 lbs / 4.8 kg

 

                                                                    Packing:

The standard packing is of recyclable cardboard, size 46.4 x 30.7 x 19.6 in (117.85 x 77.98 x 49.78 cm), on a wooden pallet. On request, the transformers can be packed in seaworthy wooden crates.


 
                                               Sold & Serviced in the United States & Canada by G. S. I. Inc.                                             
Manufactured by:



EFLA Oy
Sepantie 4  
◙   FI-07230 Monninkyla   ◙   Finland
Tel:  + 35 82 04 76 21
  ◙   Fax:  + 35 82 04 76 27 58
E-mail:  markus.martinmaki@efla.net, efla@ensto.com   ◙   Website:  www.efla.net

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Updated: February 13, 2013

     
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