APTH series of bushings – resin insulators
APTH series of bushings insulators from PHPU “Izol-Plast” Sp. z o. o. are manufactured as part of the modernized flameproof IT3Sm transformer stations and other transformer stations, and can also be used as spare parts for the refurbished and repaired flameproof transformer stations IT3Sb, IT3Sd, IT3Sc manufactured by Mikołowska Fabryka Transformatorów “MEFTA” (Alstom) in Mikołów, built with HiC insulation class, or they can be used in other devices. & nbsp;
Technical parameters of APTH series bushings:
- rated voltage: 1250 V to 7000 V,
- rated current: 200 A to 800 A,
- nominal diameter of the pins: M10, M16, M20, M24,
- the outer diameter of the insulator sleeve[mm]: Ø40, Ø50, Ø70, Ø116,
- operating temperature range of insulators: -15oC to 100oC.
|Insulator type||Rated voltage[kV]||Rated current [A]||Number of pins[szt]||Nominal diameter of the clamps||The outer diameter of the insulator flange[mm]||Maximum torsional torque acting on the clamp[Nm]||Working temperature range|
|APTH 1/500||1,25||500||1||M16||Ø40 +/- 0,1||50||-15oC to 100oC|
|APTH 1/500 N||1,25||500||1||M16||Ø40 +/- 0,1||50|
|APTH 1/500 II||1,25||500||1||M16||Ø50 +/- 0,1||50|
|APTH 1/500 II-N||1,25||500||1||M16||Ø50 +/- 0,1||50|
|APTH 1/600||1,25||600||1||M20||Ø50 +/- 0,1||85|
|APTH 1/600 N||1,25||600||1||M20||Ø50 +/- 0,1||85|
|APTH 1/800||1,25||800||1||M24||Ø50 +/- 0,1||130|
|APTH 1/800 N||1,25||800||1||M24||Ø50 +/- 0,1||130|
|APTH 6/200 N||7,00||200||1||M10||Ø70 +/- 0,1||16|
|APTH 3-6/200 N||*||200||3||M10||Ø116 +/- 0,1||16|
* – permissible voltage between insulator pins – 4000 V, permissible voltage between insulator pin and mounting flange – 7000 V,
– when an insulator is installed in a transportable transformer station, the maximum permissible voltage between the pins of the insulator – 660 V, the rated voltage between one pin of the insulator and the mounting flange – 6600 V, the maximum voltage between one pin of the insulator and the mounting flange – 6930 V,
|Insulator APTH 1/500|
Bushing insulator from the main chamber of the flameproof transformer to the DN equipment chamber in 315kVA, 6 / 1kV and 400kVA, 6 / 1kV stations, as well as DN of It3Sf 1000kVA stations.
|Insulator APTH 1/500 II|
Bushing insulator from the main transformer chamber to the DN equipment chamber in 630kVA, 6 / 1kV stations.
|Insulator APTH 1/500 N|
The bushing insulator from the DN equipment chamber of the transformer to the DN connection chamber at 315kVA, 6 / 1kV and 400kVA, 6 / 1kV, and 1000kVA stations.
|Insulator APTH 1/500 N-II|
Bushing insulator from the transformer DN equipment chamber to the DN connection chamber in 630kVA, 6 / 1kV stations.
|Insulator APTH 1/600|
Bushing insulator from the main transformer chamber to the DN equipment chamber for a 400kVA, 6 / 0.5kV and 1000kVA, 6 / 1kV transformer station
|Insulator APTH-1/600 N|
Bushing insulator from the apparatus chamber to the DN connection chamber for a 500kVA, 6 / 0.5kV transformer station.
|Insulator APTH 1/800|
Bushing insulator from the main transformer chamber to the DN apparatus chamber for the 630kVA, 6 / 0.5kV transformer station.<
|Insulator APTH 1/800 N|
The bushing insulatoe from the DN apparatus chamber to the DN chamber of this transformer station 630kVA, 6 / 0.5kV.
|Insulator APTH 6/200 N|
The bushing insulator from the HV apparatus chamber to the connection chamber of all types of flameproof transformers manufactured by the former Fabryka Transformatorów “MEFTA” Mikołów.
|Insulator APTH 3-6/200 N|
The bushing insulator is intended as a tap changer for all types of flameproof transformers manufactured by the former Fabryka Transformatorów “MEFTA” Mikołów.
Series of bushings insulators APTH have an examination certificate type WE: KDB 08ATEX020U/1 from 23.05.2011r.
Central Mining Institute, Notified Body No. 1453 in accordance with Article 9 of Directive 94/9 / EC of 23 March 1994, confirms that the part or subassembly being the subject of this certificate meets the essential health and safety requirements for the design and construction of protective equipment and systems intended for use in potentially explosive atmospheres listed in Annex 2 to Directive 94/9 / EC (Chapter 2 of the Ordinance of the Minister of Economy of December 22, 2005, Journal of Laws No. 263, item 2203)
The basic requirements of safety and health protection were implemented by meeting the requirements of the following standards:
- PN-EN 60079-0:2009
- PN-EN 60079-1:2010
Series of bushings insulators APTH are marked with:
I M2 Ex d I Mb
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