ATK_MED Transformer


Application and description

The transformers of the ATK-MED series have reinforced insulation and comply with the requirements of IEC 61558-1 / DIN EN 61558-1 (VDE 0570-1) and IEC 61558-2-15 / DIN EN 61558-2-15 (VDE 0570-2-15).

In addition, the transformers comply with the requirements of IEC 60364-7-710/ DIN VDE 0100-710 (VDE 0100-710) for IT systems in medical locations. The windings are galvanically isolated. In order to minimize electrical interferences, an electrostatic screen is installed between the primary and secondary winding the lead out of which is connected to an insulated terminal for connection to the equipotential bonding.

The fixing angles are isolated from the transformer core in order to guarantee an isolated installation to comply with the requirements of DIN VDE 0100-710 (VDE 0100-710), para. 710.512.1.6.2).

The transformers are available for horizontal and vertical installation. Protection against corrosion is guaranteed by a complete resin impregnation.

The transformers are designed for use in dry locations. Transformers of the SK2 series are completely encapsulated and fulfil the requirements of protection class II.

Application and description

The transformers of the ATK-MED series have reinforced insulation and comply with the requirements of IEC 61558-1 / DIN EN 61558-1 (VDE 0570-1) and IEC 61558-2-15 / DIN EN 61558-2-15 (VDE 0570-2-15).

In addition, the transformers comply with the requirements of IEC 60364-7-710/ DIN VDE 0100-710 (VDE 0100-710) for IT systems in medical locations. The windings are galvanically isolated. In order to minimize electrical interferences, an electrostatic screen is installed between the primary and secondary winding the lead out of which is connected to an insulated terminal for connection to the equipotential bonding.

The fixing angles are isolated from the transformer core in order to guarantee an isolated installation to comply with the requirements of DIN VDE 0100-710 (VDE 0100-710), para. 710.512.1.6.2).

The transformers are available for horizontal and vertical installation. Protection against corrosion is guaranteed by a complete resin impregnation.

The transformers are designed for use in dry locations. Transformers of the SK2 series are completely encapsulated and fulfil the requirements of protection class II.

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Customization

Frequency / rating

 

 

The transformers are designed for rated frequencies of 50...60 Hz. The values specified in the chapter 'Technical data" refer to a maximum ambient temperature of 40 °C and a rated frequency of 50 Hz.

 

Temperature rise

 

Free air circulation must be ensured. An ambient temperature exceeding 40 °C will reduce the rated power. For temperature monitoring, a PTC thermistor is placed on each transformer leg and the leads are connected to the terminals.

 

Endosure  

                                                                                                        

Appropriate steel sheet enclosures, degree of protection IP 23, are available for all standard types of isolating transformers

 

Rated power

 

According to DIN VDE 0100-710 (VDE 0100-710), the rated power of the transformer shall not be less than 3.15 kVA and shall not exceed 8 kVA.

 

Overload protection

 

When isolating transformers are used to form a medical IT system in accordance with para. 710.512.1.6.2 of DIN VDE 0100-710 (VDE 0100-710), overload protection is not permitted. In this case, short-circuit protection is required. That means, emphasis is focused on the availability ofthe power supply; it is therefore essential to avoid discon­nection on the occurrence of transient overload. The protection of isolating transformers against overload and overtemperature can be realized by using monitoring devices in accordance with para. 710.531.3.1. The appropriate fuses for short-circuit protection can be selected from the table "Technical data".

 

Standards

 

The ATK-MED series complies with the requirements of the fol lowing standards and regulati- ons for the erection of electrical equipment: IEC 61558-1 DIN EN 61558-1 (VDE 0570-1), IEC 61558-2-15/DINEN 61558-2-15 (VDE 0570-2-15), IEC 60364-7-710 DIN VDE 0100- 710 (VDE 0100-710).

 

Device features

 

Built-in temperatures sensors according to DIN 44081(120°C)

Screen winding with brought-out insulated connection terminal

Insulated mounting angles

Degree of protection IP 00 (construction type: open)

Degree of protection IP 23 (enclosure included)

Protection class I

Protection class II (option: completely encapsulated version)

Reinforced insulation

Classfication of insulation: ta40/B

Connection: screw terminals

Noise level < 35 dB(A) (no-load and nominal load)

Vector group: liO

VDE ENEC mark for the ATK-MED3150 ... ATK-MED10000 series

 

 

Wiring diagram

 

 

Terminal diagram

Standard

Nameplate

 

 

Cross section area of connecting cable

 

Type Input teriminals Screen winding Control terminals Control terminals for SK2 Output terminals
  Flexible/rigid flexible/rigid flexible/rigid flexible/rigid flexible/rigid
ATK-MED3150 10/16 mm2 10/16 mm2 4/6 mm2 2.5/4 mm2 10/16 mm2
ATK-MED4000 16/25 mm2 16/25 mm2 4/6 mm2 2.5/4 mm2 16/25 mm2
ATK-MED5000 16/25 mm2 16/25 mm2 4/6 mm2 2.5/4 mm2 16/25 mm2
ATK-MED6300 16/25 mm2 16/25 mm2 4/6 mm2 2.5/4 mm2 16/25 mm2
ATK-MED8000 16/25 mm2 16/25 mm2 4/6 mm2 2.5/4 mm2 16/25 mm2
ATK-MED10000 25/25 mm2 25/25 mm2 4/6 mm2 2.5/4 mm2 25/25 mm2

 

 

Technical date isolating transformer ATK-MED

Type ATK-MED3150 ATK-MED4000 ATK-MED5000 ATK-MED6000 ATK-MED8000 ATK-MED10000
Insulation classification ta40/B ta40/B ta40/B ta40/B ta40/B ta40/B
Degree of protection IP 00 IP 00 IP 00 IP 00 IP 00 IP 00
Protection class I/II* I/II* I/II* I/II* I/II* I/II*
Power/voltage/currents
Rated power 3150 VA 4000 VA 5000 VA 6300 VA 8000 VA 10000 VA
Rated frequency 50...60 Hz 50...60 Hz 50...60 Hz 50...60 Hz 50...60 Hz 50...60 Hz
Rated input voltage AC230 V AC230 V AC230 V AC230 V AC230 V AC230 V
Rated input current In 14.2 A 18 A 22.5 A 28.5 A 36 A 45.3 A
Rated output voltage AC 230/115V AC 230/115V AC 230/115V AC 230/115V AC 230/115V AC 230/115V
Rated output current 13.7A 17.4A 21.7A 27.4A 34.7A 43.5A
Inrush current IE <12 x <12 x <12 x <12 x <12 x <12 x
Leakage current ≤0.5 mA ≤0.5 mA ≤0.5 mA ≤0.5 mA ≤0.5 mA ≤0.5 mA
No-load input current io ≤ 3% ≤ 3% ≤ 3% ≤ 3% ≤ 2.8% ≤ 3%
No-load output voltage Uo ≤ 236V ≤ 233V ≤ 234V ≤ 235V ≤ 233V ≤ 233V
Short-circuit voltage Uk ≤ 2.9% ≤ 2.8% ≤ 2.6% ≤ 2.1% ≤ 2.2% ≤ 3%
General data
Fuse 25 A gL/gG 35 A gL/gG 50 A gL/gG 50 A gL/gG 63 A gL/gG 80 A gL/gG
Induction 0.86T 0.94T 1T 1.05T 1T 1.1T
Rprimary

0.245Ω

0.133Ω 0.099Ω 0.08Ω 0.064Ω 0.055Ω
Rsecondary 0.228Ω 0.108Ω 0.095Ω 0.07Ω 0.056Ω 0.033Ω
FE loss 55W 56W 77W 107W 105W 150W
Cu loss 120W 105W 125W 170W 200W 230W
Efficiency 95% 96% 96% 96% 96% 96%
Ambient temperature max. ≤ 40°C ≤ 40°C ≤ 40°C ≤ 40°C ≤ 40°C ≤ 40°C
No-load temperature rise ≤ 22°C ≤ 22°C ≤ 26°C ≤ 31°C ≤ 33°C ≤ 36°C
Full-load temperature rise ≤ 55°C ≤ 53°C ≤ 62°C ≤ 67°C ≤ 76°C ≤ 65°C
Noise level (no load and full load) ≤ 35 dB(A) ≤ 35 dB(A) ≤ 35 dB(A) ≤ 35 dB(A) ≤ 35 dB(A) ≤ 35 dB(A)

Frequency / rating

 

 

The transformers are designed for rated frequencies of 50...60 Hz. The values specified in the chapter 'Technical data" refer to a maximum ambient temperature of 40 °C and a rated frequency of 50 Hz.

 

Temperature rise

 

Free air circulation must be ensured. An ambient temperature exceeding 40 °C will reduce the rated power. For temperature monitoring, a PTC thermistor is placed on each transformer leg and the leads are connected to the terminals.

 

Endosure  

                                                                                                        

Appropriate steel sheet enclosures, degree of protection IP 23, are available for all standard types of isolating transformers

 

Rated power

 

According to DIN VDE 0100-710 (VDE 0100-710), the rated power of the transformer shall not be less than 3.15 kVA and shall not exceed 8 kVA.

 

Overload protection

 

When isolating transformers are used to form a medical IT system in accordance with para. 710.512.1.6.2 of DIN VDE 0100-710 (VDE 0100-710), overload protection is not permitted. In this case, short-circuit protection is required. That means, emphasis is focused on the availability ofthe power supply; it is therefore essential to avoid discon­nection on the occurrence of transient overload. The protection of isolating transformers against overload and overtemperature can be realized by using monitoring devices in accordance with para. 710.531.3.1. The appropriate fuses for short-circuit protection can be selected from the table "Technical data".

 

Standards

 

The ATK-MED series complies with the requirements of the fol lowing standards and regulati- ons for the erection of electrical equipment: IEC 61558-1 DIN EN 61558-1 (VDE 0570-1), IEC 61558-2-15/DINEN 61558-2-15 (VDE 0570-2-15), IEC 60364-7-710 DIN VDE 0100- 710 (VDE 0100-710).

 

Device features

 

Built-in temperatures sensors according to DIN 44081(120°C)

Screen winding with brought-out insulated connection terminal

Insulated mounting angles

Degree of protection IP 00 (construction type: open)

Degree of protection IP 23 (enclosure included)

Protection class I

Protection class II (option: completely encapsulated version)

Reinforced insulation

Classfication of insulation: ta40/B

Connection: screw terminals

Noise level < 35 dB(A) (no-load and nominal load)

Vector group: liO

VDE ENEC mark for the ATK-MED3150 ... ATK-MED10000 series

 

 

Wiring diagram

 

 

Terminal diagram

Standard

Nameplate

 

 

Cross section area of connecting cable

 

Type Input teriminals Screen winding Control terminals Control terminals for SK2 Output terminals
  Flexible/rigid flexible/rigid flexible/rigid flexible/rigid flexible/rigid
ATK-MED3150 10/16 mm2 10/16 mm2 4/6 mm2 2.5/4 mm2 10/16 mm2
ATK-MED4000 16/25 mm2 16/25 mm2 4/6 mm2 2.5/4 mm2 16/25 mm2
ATK-MED5000 16/25 mm2 16/25 mm2 4/6 mm2 2.5/4 mm2 16/25 mm2
ATK-MED6300 16/25 mm2 16/25 mm2 4/6 mm2 2.5/4 mm2 16/25 mm2
ATK-MED8000 16/25 mm2 16/25 mm2 4/6 mm2 2.5/4 mm2 16/25 mm2
ATK-MED10000 25/25 mm2 25/25 mm2 4/6 mm2 2.5/4 mm2 25/25 mm2

 

 

Technical date isolating transformer ATK-MED

Type ATK-MED3150 ATK-MED4000 ATK-MED5000 ATK-MED6000 ATK-MED8000 ATK-MED10000
Insulation classification ta40/B ta40/B ta40/B ta40/B ta40/B ta40/B
Degree of protection IP 00 IP 00 IP 00 IP 00 IP 00 IP 00
Protection class I/II* I/II* I/II* I/II* I/II* I/II*
Power/voltage/currents
Rated power 3150 VA 4000 VA 5000 VA 6300 VA 8000 VA 10000 VA
Rated frequency 50...60 Hz 50...60 Hz 50...60 Hz 50...60 Hz 50...60 Hz 50...60 Hz
Rated input voltage AC230 V AC230 V AC230 V AC230 V AC230 V AC230 V
Rated input current In 14.2 A 18 A 22.5 A 28.5 A 36 A 45.3 A
Rated output voltage AC 230/115V AC 230/115V AC 230/115V AC 230/115V AC 230/115V AC 230/115V
Rated output current 13.7A 17.4A 21.7A 27.4A 34.7A 43.5A
Inrush current IE <12 x <12 x <12 x <12 x <12 x <12 x
Leakage current ≤0.5 mA ≤0.5 mA ≤0.5 mA ≤0.5 mA ≤0.5 mA ≤0.5 mA
No-load input current io ≤ 3% ≤ 3% ≤ 3% ≤ 3% ≤ 2.8% ≤ 3%
No-load output voltage Uo ≤ 236V ≤ 233V ≤ 234V ≤ 235V ≤ 233V ≤ 233V
Short-circuit voltage Uk ≤ 2.9% ≤ 2.8% ≤ 2.6% ≤ 2.1% ≤ 2.2% ≤ 3%
General data
Fuse 25 A gL/gG 35 A gL/gG 50 A gL/gG 50 A gL/gG 63 A gL/gG 80 A gL/gG
Induction 0.86T 0.94T 1T 1.05T 1T 1.1T
Rprimary

0.245Ω

0.133Ω 0.099Ω 0.08Ω 0.064Ω 0.055Ω
Rsecondary 0.228Ω 0.108Ω 0.095Ω 0.07Ω 0.056Ω 0.033Ω
FE loss 55W 56W 77W 107W 105W 150W
Cu loss 120W 105W 125W 170W 200W 230W
Efficiency 95% 96% 96% 96% 96% 96%
Ambient temperature max. ≤ 40°C ≤ 40°C ≤ 40°C ≤ 40°C ≤ 40°C ≤ 40°C
No-load temperature rise ≤ 22°C ≤ 22°C ≤ 26°C ≤ 31°C ≤ 33°C ≤ 36°C
Full-load temperature rise ≤ 55°C ≤ 53°C ≤ 62°C ≤ 67°C ≤ 76°C ≤ 65°C
Noise level (no load and full load) ≤ 35 dB(A) ≤ 35 dB(A) ≤ 35 dB(A) ≤ 35 dB(A) ≤ 35 dB(A) ≤ 35 dB(A)

Energy Feedback Reactor

Reference / Implementing Standards GB1094.6-2011 Electric transformer JB9644-1999 Semiconductor electric drive reactor IEEE519 - 1992/EN6100-5-2

Harmonic filter

Reference/ lmplementing Standards IEEE519(EN - 2-5) Electromagnetic Magnetic Compatibility(EMC) EN61558-2-20 (VDE 507-2-20) Safety of Power Supply Equipment and Similar Equipment GB145493-93 Power Quality Public Power Grid Harmonic Wave

LCL filter

Reference/ lmplementing Standards GB 1094.6-2011 Reactor GB 1094.6-2011 Reactor (eqvlEC289:1987) JB 9644-1999 semiconductor electric drive reactor IEEE519-1992 GBT14549-93

EMI filter

Please see the details

Output Reactor

It is installed at the output end of the inverter, which is used to limit the capacitive charging current of the inverter and the motor connecting cable, and inactivate the voltage rise rate of PWM wave output by the inverter. When the length of motor cable exceeds a certain value, it is recommended to insert a motor reactor between the inverter and the motor, which is used to compensate the recharging current of capacitor in case of the long wires. The maximum length depends on the rated value of the frequency converter and the type of the motor cable.

Input Reactor

The input reactor can be used to provide improved overload protection for the line power supply, and to reduce the current harmonic distortion produced by the inverter. Increase the power factor of input power supply, reduce the high harmonic, and restrain the surge of frequency converter in the power supply equipment

Isolation transformer

The SG series three-phase dry-type isolation transformer is a new generation of energy-saving dry-type transformers developed and produced by our company on the basis of reference to similar international products and combined with applications. From...

DC Smoothing Reactor

DC smoothing reactor is used in the rectifying circuit to restrain the ripple pulse component after rectification and make the rectified current continuous, so as to improve the output branch waveform and guarantee the normal operation of DC equipment. The smoothing reactor is used as the series reactor in DC machine supplied by the converter, in order to eliminate the DC link in the current and voltage DC link converter; It is supposed to decouple the converter components on DC side. The power converter on DC side has high pulse circuit feedback to reduce the difference value limit, so as to limit the ring current on the connection with ring current, at the same time, limit the the rising rate of current. The smoothing reactor adopts the iron core of TEM and TET or TPK air core reactor, depending on the requirements on electromagnetic induction.

Sine wave filter

Reference / lmplementing Standards: IEEE519(EN61000-5-2) Electromagnetic compatibility (EMC) EN 61558-2-20(VDE507-2-20) Safety of power supply equipment and similar equipment GB 145493-93 Power quality, utility grid harmonics

Dv/dt filter

Reference / Implementing Standards: IEC60076-6:2007 Reactor GB1094.6-2011 Reactor (eqvIEC289:1987) JB9644-1999 Semiconductor electric drive reactor

Energy Feedback Reactor

Reference / Implementing Standards GB1094.6-2011 Electric transformer JB9644-1999 Semiconductor electric drive reactor IEEE519 - 1992/EN6100-5-2

Harmonic filter

Reference/ lmplementing Standards IEEE519(EN - 2-5) Electromagnetic Magnetic Compatibility(EMC) EN61558-2-20 (VDE 507-2-20) Safety of Power Supply Equipment and Similar Equipment GB145493-93 Power Quality Public Power Grid Harmonic Wave

LCL filter

Reference/ lmplementing Standards GB 1094.6-2011 Reactor GB 1094.6-2011 Reactor (eqvlEC289:1987) JB 9644-1999 semiconductor electric drive reactor IEEE519-1992 GBT14549-93

EMI filter

Please see the details

Output Reactor

It is installed at the output end of the inverter, which is used to limit the capacitive charging current of the inverter and the motor connecting cable, and inactivate the voltage rise rate of PWM wave output by the inverter. When the length of motor cable exceeds a certain value, it is recommended to insert a motor reactor between the inverter and the motor, which is used to compensate the recharging current of capacitor in case of the long wires. The maximum length depends on the rated value of the frequency converter and the type of the motor cable.

Input Reactor

The input reactor can be used to provide improved overload protection for the line power supply, and to reduce the current harmonic distortion produced by the inverter. Increase the power factor of input power supply, reduce the high harmonic, and restrain the surge of frequency converter in the power supply equipment

Isolation transformer

The SG series three-phase dry-type isolation transformer is a new generation of energy-saving dry-type transformers developed and produced by our company on the basis of reference to similar international products and combined with applications. From...

DC Smoothing Reactor

DC smoothing reactor is used in the rectifying circuit to restrain the ripple pulse component after rectification and make the rectified current continuous, so as to improve the output branch waveform and guarantee the normal operation of DC equipment. The smoothing reactor is used as the series reactor in DC machine supplied by the converter, in order to eliminate the DC link in the current and voltage DC link converter; It is supposed to decouple the converter components on DC side. The power converter on DC side has high pulse circuit feedback to reduce the difference value limit, so as to limit the ring current on the connection with ring current, at the same time, limit the the rising rate of current. The smoothing reactor adopts the iron core of TEM and TET or TPK air core reactor, depending on the requirements on electromagnetic induction.


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