- Product Series
Product Series
- 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
specificationDimensions(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