FAQ# DRV-5JWK6B Published: 02/19/2003
Question:What is the specification of 12 pulse input transformer E7 and F7 AC Drives?
Answer:Introduction:
F7 models with a capacity of 22kW and higher can be equipped with 12 -pulse input power supply to minimise harmonic input current distortion. To utilize 12-pulse input, a transformer with a dual star-delta secondary is required. The Specs. of needed transformers are listed below.

Wiring Diagram:


* To adjust the secondary voltage of the
star winding a transformer with 2V taps
is necessary (for example nine 2 V steps :
-8,-6,-4,-2,0,+2,+4,+6,+8 V)

Rating Current and Voltage:
Input Voltage and Output voltage is same
200V class ; 200~230V, 10%,50/60 Hz
400V class ; 380~480V, 10%,50/60 Hz

F7 MODELS
Inverter ModelCurrent Rating (Amps) Inverter ModelCurrent Rating (Amps)
Secondary
Primary
Secondary
 Primary
F7U2022
60 Amps
120 Amps
 F7U4022
33 Amps
66 Amps
F7U2030
82 Amps
164 Amps
 F7U4030
41 Amps
82 Amps
F7U2037
100 Amps
200 Amps
 F7U4037
50 Amps
100 Amps
F7U2045
115 Amps
230 Amps
 F7U4045
60 Amps
120 Amps
F7U2055
140 Amps
280 Amps
 F7U4055
80 Amps
160 Amps
F7U2075
190 Amps
380 Amps
 F7U4075
103 Amps
206 Amps
F7U2090
230 Amps
460 Amps
 F7U4090
125 Amps
250 Amps
F7U2110
270 Amps
540 Amps
 F7U4110
140 Amps
280 Amps
 F7U4132
170 Amps
340 Amps
 F7U4160
190 Amps
380 Amps
 F7U4185
235 Amps
470 Amps
 F7U4220
320 Amps
640 Amps
 F7U4300
425 Amps
850 Amps
E7 MODELS
Inverter ModelCurrent Rating (Amps) Inverter ModelCurrent Rating (Amps)
Secondary
Primary
Secondary
 Primary
E7U2022
60 Amps
120 Amps
 E7U4022
33 Amps
66 Amps
E7U2030
82 Amps
164 Amps
 E7U4030
41 Amps
82 Amps
E7U2037
100 Amps
200 Amps
 E7U4037
50 Amps
100 Amps
E7U2045
115 Amps
230 Amps
 E7U4045
60 Amps
120 Amps
E7U2055
140 Amps
280 Amps
 E7U4055
80 Amps
160 Amps
E7U2075
190 Amps
380 Amps
 E7U4075
103 Amps
206 Amps
E7U2090
230 Amps
460 Amps
 E7U4090
125 Amps
250 Amps
E7U2110
270 Amps
540 Amps
 E7U4110
140 Amps
280 Amps
 E7U4132
170 Amps
340 Amps
 E7U4160
190 Amps
380 Amps
 E7U4185
235 Amps
470 Amps
 E7U4220
320 Amps
640 Amps
 E7U4300
425 Amps
850 Amps

Other Specifications:

Ambient Temperature: 50 C max.
Humidity: 90% RH
Dielectric Strength: 2500V ac, 1 minute
(Primary-Secondary, Primary-Earth, Secondary-Earth)
Isolation Resistance: 10 M or more (Primary-Secondary, Primary-Earth,Secondary-Earth)

The secondary current includes 75% distortion current (5th and 7th harmonic). The secondary current values in the table above are effective values which include this distortion current.

The primary current includes about 15% distortion current.

Product Information:

Product Group:Inverters/Drives
Product:E7 Drive, F7 Drive
Applications:
Category:Harmonics

Other Information:

Link to related files:

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