TLO-24 MH30

Current transformer TLO-24 MH30

The main specific features of this design

TLO-24 MH30 current transformer for 24 kV is designed for installation in outdoor switchgears and in single-end service assembled chambers.

The current transformer ensures transmitting of the measuring information signal to the measuring instruments and protection and control devices to insulate secondary wiring from high voltage in alternating current electrical units for up to 24 kV voltage class.

Climatic modifications NF (temperate and cold climate), placement categories 1 under GOST 15150-69.

Полезная информация

Operation Manual	See	Download
Product passport	See	Download
Certificates	See	Download
Data Sheet form	See	Download

Характеристики
Габарит

Наименование	Значение
Rated voltage, kV	20,24
Maximum operating voltage, kV	26,5
Rated primary current, А	5; 7,5; 10; 11; 12; 13; 14; 16; 15; 18; 20; 22; 25; 27,5; 30; 32,5; 35; 37,5; 40; 50; 55; 60; 65; 70; 75; 80; 90; 100; 150; 200; 250; 300; 350; 400; 500; 550; 600; 650; 700; 750; 800; 900; 1000; 1050; 1100; 1150; 1200; 1250; 1300; 1400; 1500
Rated secondary current, А	1; 5
Rated frequency, Hz	50; 60
Number of secondary windings	up to 3
Rated secondary burdens with cosφ=0.8
measuring windings, V·А	from 1 up to 50
protective winding, V·А	from 1 up to 50
Rated accuracy class:
measuring windings	0,2S; 0,2; 0,5S; 0,5; 1; 3
protective windings	5Р or 10Р

Accuracy limit factor Krated of secondary protective winding	from 2 up to 30
Rated instrument security factor FSrated of measuring winding	from 3 up to 30
Short-time (one second) thermal current kА, at rated primary current
5-20 А	2,5; 5
30-50 А	5; 10; 20
75-100 А	10; 20; 31,5; 40
150 А	15; 20; 31,5; 40
200 А	20; 31,5; 40-60
300 А	31,5; 40-100
Dynamic current kА, at rated primary current
5-20 А	6,25; 12,8
30-50 А	12,8; 26; 52
75-100 А	26; 52; 81; 100
150 А	39; 52; 81; 100
200 А	52; 81; 100-150
300 А	81; 100-250

Weight, kg, not more	90
Overall dimensions, (LxWxH), mm	400х400х426

*Для трансформаторов с расширенным диапазоном первичного тока погрешности при токе 150 % и 200 % номинального первичного тока не превышают пределы допускаемых погрешностей для 120 % номинального первичного тока.

**Для классов точности TPX, TPY, TPZ по ГОСТ Р МЭК 61869-2 значения номинальной вторичной нагрузки S_2ном пересчитываются по формуле, В·А:

где R_b– номинальное values for parameters резистивной нагрузки по ГОСТ Р МЭК 61869-2;

I_2ном– номинальный вторичный ток, А.