中文   |   English
FL2-0.66-50×30III


概述:
低压保护型电流互感器主要适用于多根母排穿越的继电保护回路,该产品为保护系统检测短路故障而开发,具有不同准确级和准确限值系数,广泛应用于低压配电保护系统。

产品特点: 
下面以浙江福莱德电气有限公司FL2-0.66III电流互感器,立式方孔型,可穿铜排1~3汇流排,不但具有I,II型的特点,而且可作供电系统计量电能用,以及可与电流继电器配套作保护用。
FL2-0.66III系列电流互感器外壳采用阻燃、台湾奇美ABS注塑成形,铁芯采用取向冷轧硅钢带卷绕而成,二次导线采用高强度电磁漆包线,产品结构新颖,造型美观,安装方便,准确度高,容量大。

用于采集低压过载、短路信号,与保护继电器配套使用,一次测量范围100-5000A,二次输出5A、1A,主要准确级有:5P10等。采集低压过载、短路信号,与电动机保护单元配套使用。

符合标准

产品符合国标GB20840.2-2014 

技术指标

l     保护CT一次电流100-5000A,二次电流5A,1A
2     额定工作电压AC0.66kV(等效AC0.69kV,GB/T156-2007)
3     额定频率50-60Hz
4     环境温度-30℃~70℃,最高耐温120℃
5     海拔高度≤3000m
6     工频耐压4000V/1min 50Hz
7     用于没有雨雪直接侵袭,无严重污染及剧烈震动的场所

 

选型说明

l  根据一次电流及母线截面等参数选择对应的规格产品。一次导线穿越互感器窗孔。打开翻盖,通过压线片进行二次接线,二次接线引出后翻盖复位。计量电能可直接利用翻盖小孔加封铅印,以防窃电。
l  工作电流长期不超过1.1倍额定值,允许在1.2倍额定值时短时使用,时间不超过1h;
l  根据被测电流大小,选定额定电流比,一般选用比被测电流大2/3左右的额定电流;
2  产品极性表示为:一次接线标志P1、P2,相应二次接线标志S1、S2;S1表示P1的同名端,S2表示P2的同名端;
3  测量仪表接于S1、S2端上,此时所接回路的总负荷不应超过互感器的额定负荷,当安装仪表位置与电流互感器相距甚远或回路负载较大时,应优先选用二次电流为1A的规格;
4  注意根据母排的规格和根数,选用相匹配窗口大小的互感器。

 

规格尺寸

尺寸
规格

外形尺寸(mm)

内孔安装尺寸(mm)

长度

宽度

高度

长度

高度

FL2-0.66-30III

60

37

79

32

20

FL2-0.66-40III

78

46

104

42

31

FL2-0.66-50×30III

91

77

127

33

55

FL2-0.66-60×30III

99

77

144

33

65

FL2-0.66-80×30III

99

77

167

33

85

FL2-0.66-100×50III

123

77

199

55

105

FL2-0.66-130×50III

123

77

230

55

135

 

FL2-0.66IV型中压电动机保护专用电流互感器
FL2-0.66IV 3.3kV保护用电流互感器外壳采用ABS材料,具有很强的耐热性和机械性能。该互感器可过载10倍,专用于煤矿,与煤矿专用电动机保护装置配套使用。

 

型号

额定电流

额定负荷

准确级别

FL2-0.66-30III

100~400A/1A

2.5~10VA

5P10

100~500A/5A

FL2-0.66-40III

150~800A/1A

5~10VA

5P10

150~800A/5A

FL2-0.66-50×30III

200~1200A/1A

5~10VA

5P10

200~1200A/5A

FL2-0.66-60×30III

200~2000A/1A

5~10VA

5P10

200~2000A/5A

FL2-0.66-80×30III

300~2500A/1A

5~20VA

5P10

300~2500A/5A

FL2-0.66-100×50III

600~4000A/1A

5~30VA

5P10

600~4000A/5A

FL2-0.66-130×50III

600~5000A/1A

5~30VA

5P10

600~5000A/5A

 

  • product manual


  • Overview:

    The low-voltage protection type current transformer is mainly applied to the relay protection circuit which passes through the busbar. The product is developed for the protection system to detect the short circuit fault, and has different accuracy level and accurate limit coefficient. It is widely used in low voltage distribution protection system.

    Features:

    FL2-0.66III current transformer, vertical square hole, can wear copper 1 ~ 3 bus, not only has the characteristics of type I, II, and can be used for power supply system measurement of energy with , And can be used with the current relay for protection.

    FL2-0.66III series of current transformer shell with flame retardant, Taiwan Chi Mei ABS injection molding, the core is oriented with cold-rolled silicon steel coil with the second wire using high-strength electromagnetic enameled wire, the product structure is novel, handsome in appearance, easy to install , High accuracy, large capacity.

    Used to collect low-voltage overload, short-circuit signal, and supporting the use of protective relays, a measurement range of 100-5000A, secondary output 5A, 1A, the main accuracy level: 5P10 and so on. Collecting low-voltage overload, short-circuit signal, and supporting the use of motor protection unit.

    Standards compliant

    Products meet GB GB20840.2-2014

    Technical indicators

    L protection CT primary current 100-5000A, secondary current 5A, 1A

    2 rated working voltage AC0.66kV (equivalent AC0.69kV, GB / T156-2007)

    3 rated frequency 50-60Hz

    4 ambient temperature -30 ℃ ~ 70 ℃, the maximum temperature of 120 ℃

    5 Altitude ≤ 3000m

    6 power frequency withstand voltage 4000V / 1min 50Hz

    7 for the direct invasion without rain and snow, no serious pollution and severe vibration of the place

    Selection instructions

    L According to a current and bus cross-section and other parameters to select the corresponding specifications products. One wire crosses the transformer window. Open the flip, through the pressure line for the second wiring, the second wiring leads to flip after the flip. Metering energy can be directly used to cover the closure of small holes sealed to prevent theft.

    L working current long-term does not exceed 1.1 times the rated value, allowing 1.2 times the rated value of short-term use, the time does not exceed 1h;

    L According to the measured current size, the selected rated current ratio, the general choice than the measured current about 2/3 of the rated current;

    2, the polarity of the product is expressed as: one wiring sign P1, P2, corresponding secondary wiring sign S1, S2; S1 denotes the same name terminal of P1, S2 denotes the same name of P2;

    3 measuring instrument connected to the S1, S2 side, then the total load connected to the loop should not exceed the rated load of the transformer, when the installation of the instrument position and the current transformer is far apart or loop load is large, should be preferred two Current of 1A specifications;

    4 Note According to the busbar specifications and the number of roots, select the matching window size of the transformer.


    Standard sizes


    Size
    specification

    Dimensions(mm)

    Bore mounting dimensions(mm)

    length

    width

    height

    length

    height

    FL2-0.66-30III

    60

    37

    79

    32

    20

    FL2-0.66-40III

    78

    46

    104

    42

    31

    FL2-0.66-50×30III

    91

    77

    127

    33

    55

    FL2-0.66-60×30III

    99

    77

    144

    33

    65

    FL2-0.66-80×30III

    99

    77

    167

    33

    85

    FL2-0.66-100×50III

    123

    77

    199

    55

    105

    FL2-0.66-130×50III

    123

    77

    230

    55

    135


    FL2-0.66IV medium voltage motor protection dedicated current transformer


    FL2-0.66IV 3.3kV protection with current transformer shell ABS material, with a strong heat resistance and mechanical properties. The transformer can be overloaded 10 times, dedicated to coal mines, and coal mine dedicated motor protection device supporting the use.


    model

    Rated current

    Rated load

    Accurate level

    FL2-0.66-30III

    100~400A/1A

    2.5~10VA

    5P10

    100~500A/5A

    FL2-0.66-40III

    150~800A/1A

    5~10VA

    5P10

    150~800A/5A

    FL2-0.66-50×30III

    200~1200A/1A

    5~10VA

    5P10

    200~1200A/5A

    FL2-0.66-60×30III

    200~2000A/1A

    5~10VA

    5P10

    200~2000A/5A

    FL2-0.66-80×30III

    300~2500A/1A

    5~20VA

    5P10

    300~2500A/5A

    FL2-0.66-100×50III

    600~4000A/1A

    5~30VA

    5P10

    600~4000A/5A

    FL2-0.66-130×50III

    600~5000A/1A

    5~30VA

    5P10

    600~5000A/5A