TDC 4 Indoor voltage transformers

Transkript

1 Medium Voltage Product TDC 4 Indoor voltage transformers Highest voltage for equipment [kv] Power frequency test voltage, 1 min. [kv] 10 - Lightning impulse test voltage [kv] Max. rated burden, classes [VA/cl] /0.2-75/ /1 Description The TDC 4 voltage, double-pole insulated transformers are cast in epoxz resin and designed mostly for insulation voltages of 3.6 kv to 12 kv. If no other value is required the transformers are manufactured with a voltage factor of 1.2 x Un. All the parts of the primary winding of the transformer are insulated from the earth, including the terminals, to an insulation level identical with the rated insulation level. When operating in a three-phase system the primary inlets of the transformer are connected across the respective lines, to the phase-to-phase voltage, mostly in the V type of connection. The majority of the transformers is equipped with one secondary winding, intended to be used for either the measurement or protection purposes. One of the terminals of each secondary winding has to be earthed during the transformer operation. If not required otherwise, the secondary winding is lead out into a cast secondary terminal board. The transformer may be mounted in any position. The transformers are fixed by four screws, The M8 bolted earthing clamp is located on the transformer base plate. The secondary, sealable terminal board is covered with a transparent cover made of plastic material. Rated primary voltages... 3 kv; 3.3 kv; 6 kv; 6.6 kv; 10 kv; 11 kv Other primary voltages based VQon customer s request may be delivered, too. Rated secondary voltages V; 110 V 0.2; 0.5; and 1 accuracy classes (measuring winding), or 3P; 6P (protection winding) Other secondary voltages based VQon customer s request may be delivered, too. Rated frequency Hz; 60 Hz Design for two primary voltages is also possible, based on a consultancy to be conducted with the manufacturer (change over secondary side). The transformers are manufactured and delivered conformably to the requirements and recommendations of the following standards and regulations: IEC, VDE, ANSI, BS, GOST and CSN.

2 Dimensions M10x15 20 Pg M (125) x 11 Marking of the voltage transformer outlets a) Single-pole insulated transformer b) Single-pole insulated transformer with a tap c) Double-pole insulated transformer d) Double-pole insulated transformer with a tap e) Single-pole insulated transformer with two secondary windings f) Single-pole insulated transformer with two secondary windings, with one of which being the auxiliary (residual) winding g) Single-pole insulated transformer with two secondary, tapped windings, with one which being the auxiliary (residual) winding. 2

3 Standartized transformers Primary voltage,v Secondary voltage voltage,v accuracy burden, VA ,2 10,15, ,5 15,25, ,75, ,2 10,15, ,5 15,25, ,75, ,5 15,25, ,5 15,25, ,75, ,2 10,15, ,5 15,25, ,75, ,2 10,15, ,2 10,15, ,5 15,25, ,5 15,25, ,75, ,75, ,2 10,15, ,2 10,15, ,5 15,25, ,5 15,25, ,75, ,75,100 3

4 ABB s.r.o. PPMV Brno Videnska Brno, Czech Republic Tel.: Fax: The data and ilustrations in this catalogue are not binding. We reserve the right to make changes of the content, in the course of technical development of the product. 1VLC Rev 1, en 2010.xx.xx

5 Medium Voltage Product TDC 6 Indoor voltage transformers Highest voltage for equipment [kv] (25) Power frequency test voltage, 1 min. [kv] (55) Lightning impulse test voltage [kv] M a x. r a t e d b u r d e n [ V A/cl] 30/ / /1 Description The TDC 6 voltage, double-pole insulated transformers are casted in epox resin and designed mostly for insulation voltages of 17,5 kv to 24 kv. Other insulation values are to be the subject of an agreement between the manufacturer and the customer. If no other value is required the transformers are manufactured with a voltage factor of 1.2 x Un. All the parts of the primary winding of the transformer are insulated from the earth, including the terminals, to an insulation level identical with the rated insulation level. When operating in a three-phase system the primary inlets of the transformer are connected across the respective lines, to the phase-to-phase voltage, mostly in the V type of connections. The majority of transformers is equipped with one secondary winding, intended to be used for either the measurement or protection purposes. One of the terminals of each secondary winding has to be earthed during the transformer operation. If not required otherwise, the secondary winding is lead out into a casted secondary terminal board. The transformer may be mounted in any position. The transformers are fixed by four screws, The M8 bolted earthing clamp is located on the transformer base plate. The secondary, sealable terminal board is covered with a transparent cover made of plastic material. Rated primary voltages kv; 15 kv; 20 kv; 22 kv Other primary voltages based on customer s request may be delivered, too. Rated secondary voltages V; 110 V 0.2; 0.5 and 1 accuracy classes (measuring winding), or 3P; 6P (protection winding) Other secondary voltages based on customer s request may be delivered, too. Rated frequency Hz; 60 Hz Design for two primary voltages is also possible, based on a consultancy to be conducted with the manufacturer (change over secondary side). The transformers are manufactured and delivered conformably to the requirements and recommendations of the following standards and regulations: IEC, VDE, ANSI, BS, GOST and ČSN.

6 Dimensions M10x15 Pg16 14 ZEM M8 EARTH A U B V Marking of the voltage transformer outlets a) Single-pole insulated transformer b) Single-pole insulated transformer with a tap c) Double-pole insulated transformer d) Double-pole insulated transformer with a tap e) Single-pole insulated transformer with two secondary windings f) Single-pole insulated transformer with two secondary windings, with one of which being the auxiliary (residual) winding g) Single-pole insulated transformer with two secondary, tapped windings, with one which being the auxiliary (residual) winding. 2

7 Standartized transformers Primary voltage,v Secondary voltage voltage,v accuracy burden, VA ,2 10,15, ,2 10,15, ,5 15,25, ,5 15,25, ,75, ,75, ,2 10,15, ,2 10,15, ,5 15,25, ,5 15,25, ,75, ,75, ,2 10,15, ,2 10,15, ,5 15,25, ,5 15,25, ,75, ,75,100 3

8 ABB s.r.o. PPMV Brno Videnska Brno, Czech Republic Tel.: Fax: The data and ilustrations in this catalogue are not binding. We reserve the right to make changes of the content, in the course of technical development of the product. 1VLC Rev. 2, en 2011,

9 Medium Voltage Product TDC 7 Indoor voltage transformers Highest voltage for equipment [kv] 36 Power frequency test voltage, 1 min. [kv] 70 Lightning impulse test voltage [kv] 170 Max. rated burden, classes [VA/cl] 50/ / /1 R e s i d u a l w i n d i n g [ V A / c l ] / 6 P Description The TDC 7 double-pole insulated voltage transformers are casted in epox resin and designed mostly for insulation voltage 36 kv. Insulation voltages different from the above are to be the subject of an agreement between the manufacturer and the customer. If no a different value is required the transformers are manufactured with a overvoltage factor of 1.2 x Un. Both outlets of the primary winding, including the respective terminal is insulated from the earth to a level which corresponds to the rated insulation value. Most of the transformers are equipped with one secondary windings. One terminal of each secondary winding has to be earthed during the transformer operation. The transformer can be mounted in any position. The transformer are fixed by four screws. The secondary terminal board is covered with sealable cover. Secondary wiring The terminal box is entirely metal and provided with two detachable threaded inserts, Pg 16. Degree of protection is IP 30. The terminals are provided with M5 screws for the termination of the secondary wiring and with throughgoing holes for direct earthing of the secondary circuit by M6 screws. The terminal cover is sealable.

10 System and test voltages Primary winding Type Highest voltage kv Alternating test voltage kv Impulse test voltage 1.2/50 μs, kv Rated frequency Hz TDC (60) The test voltage of secondary winding is 3 kv (1 min) Standards The transformers are manufactured according to the requirements and recommendations of the following standards and regulations : IEC, ANSI, VDE, BS, GOST and ČSN. Marking of the voltage transformer outlets Secondary terminals of TDC 7 The double pole models can have max. 4 sec. terminals Double pole insulated voltage transformers Type TDC 7 Primary voltage Terminal marking V A B Max. number of secondary windings 2 Secondary voltage Terminal marking 100 V 110 V a b Accuracy class P Rated burden max. VA 1) Secondary thermal limiting current U = 1.2 x U n Mechanical strength of primary terminal Weight approx. max. 8 A 5 kn 72 kg 1) Valid for single measuring winding only. Available outputs for double meas. wdgs are calculated on request. 2

11 Dimensions M Sealable A U B V M pcs Pg 16 Circuit diagram, standard A B a Weight ca. 57 kg b Creepage distance Arcing distance 334 mm 304 mm 3

12 ABB s.r.o. PPMV Brno Videnska Brno, Czech Republic Tel.: Fax: The data and ilustrations in this catalogue are not binding. We reserve the right to make changes of the content, in the course of technical development of the product. 1VLC Rev. 1, en 2011,