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Price:
on request
Product information updated 06 April 2024.
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Warranty:
12 months.
Warranty extension up to 5 years.
Terms of delivery:
To all regions of the country, international delivery.
Product information updated 06 April 2024.
Found cheaper?
Let us know. Our price is the best.
Warranty:
12 months.
Warranty extension up to 5 years.
Terms of delivery:
To all regions of the country, international delivery.
Technical characteristics
Current transformer TNShL-0,66
Also this transformator can be called: TNShL 0.66, TNShL0,66, TNShLO-66, TNShLO66, TNShLO 66.
TNShL-0,66 current transformer is designed to transmit a signal measuring instrument measurement information, protection, automation, signaling and control electrical circuits, AC 50 Hz with a nominal voltage of 0.66 kV.
Transformers are designed for installation in complete switchgear (KRU).
Specifications TNShL-0,66:
Rated voltage - 0.66 kV.
Maximum operating voltage - 0.8 kV.
Nominal AC frequency - 50 Hz.
Rated secondary current - 5 A.
Rated primary current - 150 A; 200 A; 300 A; 400 A; 500 A; 600 A; 800 A; 1000 A; 1200 A; 1500 A; 2000 A; 2500 A; 3000 A; 4000 A; 5000 A; 6000 A; 8000 A.
Rated secondary burden:
- at cosφ = 1 - 1 V·A; 2·A; 2.5·A;
- at cosφ = 0,8 and rated primary current 150 A, 200 A - 3 V·A; 5 V·A;
- at cosφ = 0,8 and rated primary current of 300 A, 400 A - 3 V·A; 5 V·A; 10 V·A;
- at cosφ = 0,8 and rated primary current from 500 A to 10 000 A - 3 V·A; 5 V·A; 10 V·A; 15 V·A; 20 V·A.
Accuracy class of the secondary winding at rated primary current:
- 150 A - 1.5; 1;
- 200 A; 300 A - 0,5S; 0.5; 1; 10P;
- 3000 A - 0.2; 0,5S; 0.5; 1; 10P;
- from 400 A to 2500 A; from 4000 A to 6000 A - 0,2S; 0.2; 0,5S; 0.5; 1; 10P;
- 8000A; 10 000 A - 3; 10P.
Three-second thermal current:
- at rated primary current from 150 A to 2500 A - 25 multiple;
- at rated primary current of 3000 A to 10 000 A - 75 kA.
| Rated primary current | Maximum multiplicity | Instrument security factor | Maximum operating current primary | Secondary resistance DC |
| 150 A | 5 | 10 | 160 A | 0.046 Ohm |
| 200 A | 8 | 10 | 200 A | 0.063 Ohm |
| 300 A | 10 | 10 | 320 A | 0.095 Ohm |
| 400 A | 12 | 10 | 400 A | 0.127 Ohm |
| 500 A | 14 | 10 | 500 A | 0.158 Ohm |
| 600 A | 6 | 10 | 630 A | 0.161 Ohm; 0.150 Ohm; 0.169 Ohm |
| 800 A | 7 | 10 | 800 A | 0.225 Ohm |
| 1000 A | 8 | 11 | 1000 A | 0.281 Ohm |
| 1200 A | 10 | 13 | 1250 A | 0.333 Ohm; 0.347 Ohm |
| 1500 A | 11 | 14 | 1600 A | 0.417 Ohm; 0.434 Ohm; |
| 2000 A | 12 | 16 | 2000 A | 0.610 Ohm; 0.578 Ohm |
| 2500 A | 13 | 10; 18 | 2500 A | 0.961 Ohm |
| 3000 A | 13 | 18 | 3200 A | 0.829 Ohm |
| 4000 A | 14 | 20 | 4000 A | 1,433 Ohm |
| 5000 A | 15 | 20 | 5000 A | 1.839 Ohm |
| 6000 A | 14 | 20 | 6300 A | 1.832 Ohm |
| 8000 A | 2 | 20 | 8000 A | 1.7 Ohm |
| 10 000 A | 2 | 20 | 10 000 A | 2.2 Ohm |
Insulation type transformers:
- primary rated current from 600 A to 2000 A - fire resistant plastic;
- primary rated current from 150 A to 10 000 A - cast epoxy.
Weight TNShL-0,66 with cast epoxy insulation with a nominal primary current:
- from 150 A to 500 A - 3.7 kg;
- from 600 A to 2500 A - 5.5 kg;
- from 3000 to 6000 A - 10.5 kg;
- 8000 A; 10 000 A - 31.0 kg.
Transformers TNShL-0,66 do not have their own primary winding, its role is switchgear bus passing through the inner window transformers. The secondary winding is wound on a toroidal magnetic circuit and is filled with an insulating compound based on an epoxy resin or placed into the plastic housing. Insulating monolithic body reliably protects the internal parts for transformers from mechanical damage and moisture.
Operating conditions TNShL-0,66:
Transformers have climatic version "U" category of accommodation 2.
Height above sea level - not more than 1000 m.
Upper operating temperature of the ambient air in view of overheating inside the switchgear - +50° C.
Environment not explosive, without dust, reactive gases and corrosive vapors at concentrations that deplete the coating metals and insulation.
Transformers operating position in space:
- for currents from 150 A to 5000 A - any;
- on currents from 8000 A to 10000 A - vertical.
Cast resin transformers of epoxy resin transformers and plastic housing are insulated heat resistance class "B".
Photos: TNShL-0,66
ТНШЛ-0,66 transformer image.
ТНШЛ-0,66 front view.
ТНШЛ-0,66 side view.
ТНШЛ-0,66 rear view.
ТНШЛ-0,66 overhead view.
ТНШЛ-0,66 bottom view.
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