10KV ABB Schneider Resin Split Core Current Transformer for current measurement
Theory
Split core current transformers
Current transformer principle is based on the principle of electromagnetic induction. Current transformer is composed of closed core and winding. Its primary winding winding few, string in the need to measure the current line, it often has all the current flowing lines, the secondary winding more turns, in series with the measuring instruments and protection circuit, When the current transformer is working, its secondary side circuit is always closed, so the impedance of the measuring coil and the protective circuit in series is very small, and the working state of the current transformer is close to short circuit. Current transformer is the primary side of the current into a secondary side of the small current to use, the secondary side can not be open.
Applications
Spit core current transformers are the current-sensing units of the power system. Split core current transformers are used at generating stations, electrical substations, and in industrial and commercial electric power distribution.
LZCK322-10 split core current transformer is suitable forcurrent measurement and microcomputer protection of electrical equipment in 10KV and 35KV AC power system.It is widely used in compact fully insulated ring network switchgears such as ABB-Safe Ring/Safe Plus...and cable distribution boxes.The transformer can be directly installed at the inlet andoutlet cables.The slice is imported silicon material. Thesemicircular ring core and secondary windings arevacuum poured by insulated resin.
Features
The current transformer with high strength PVC shell, all cast bus structure. Transformer directly stuck in the cable Three rubber rings to resist the cable and cable with one. Transformer core using high-quality silicon steel roll, the second wire wound evenly on the core. Transformer open structure can not cut off the cable installation
PARAMETERS
Technical parameters | |
---|---|
Standards | IEC60044-1; IEC 61869-2; NTC 2205; GB1208-2006; ANSI C57.13 |
Accuracy Class | 0.5S, 0.5%, 1%, 3% |
Range of primary rated current | 100-1500A |
Range of Rated load | ≤10VA |
Rated frequency | 50/60Hz |
Rated secondary current | 5A or 1A |
Rated short-time thermal current | 40kA, 1S |
Rated continuous thermal current | 150%I1n |
Secondary winding power frequency withstand voltage | 3kV, 1min |
Safety Factor Rating | (FS) <10 |
Output signal | 1A, 5A, 333mV, 1V or 5V(customized) |
Cable length | 2.5m, 5m, 10m(customized) |
Flame retardant ABS plastic shell inside, jaw waterproof apron. | |
Mechanical parameters | |
Aperture (mm) | Φ55 |
Dimensions (W×D×H) (mm) | 180×138×52 |
Weight (kg) | 2 |
Working conditions | |
Operating temperature | -35°C to +65°C, not exceeding +40°C |
Storage temperature | -40°C to +70°C |
Ingress Protection | IP65 |
Environment | outdoors or indoors |
The Height of above sea level | 0- 3000m |
Conditions | No existence of severely begrimed, erosive and radioactive gas in the air. Continuous working under the rated current is allowed. |
Technical parameters | |
---|---|
Standards | IEC60044-1; IEC 61869-2; ANSI C57.13; NTC 2205; GB1208-2006 |
Rated primary current | 30-600A |
Rated load | ≤10VA |
Rated frequency | 50Hz or 60Hz |
Rated secondary current | 5A or 1A |
Rated short-time thermal current | 40kA, 1S |
Rated continuous thermal current | 120%I1n |
Secondary winding power-frequency voltage | 3kV, 1min |
Instrument security factor | FS≤10 |
Mechanical parameters | |
Dimensions (W×D×H) (mm) | φ50xφ110x52 |
Weight (kg) | 1.6 |
Operating conditions | |
Operating temperature | -35°C to +55°C |
Daily average temp | <+40°C |
Altitude | <3500 meters |
Condition | No existence of severely begrimed, erosive and radioactive gas in the air. Permission of long-term operation under rated current. |
Type | LZCK322-10 | LZCK322-10 | ||||
---|---|---|---|---|---|---|
Purpose | Measuring current transformer | Protection current transformer | ||||
Ratio | Accuracy class and rated load(VA) | Accuracy class and rated load(VA) | ||||
I1/I2 | 0.5 | 1 | 3 | 10P15 | 10P10 | 10P5 |
30/1 | 1 | 1.5 | ||||
50/1 | 1 | 2 | 1.25 | |||
75/1 | 1.5 | 2.5 | 1 | 2 | ||
100/1 | 2 | 2.5 | 3 | 1.5 | 2.5 | |
200/1 | 2.5 | 1.25 | 2.5 | |||
300/1 | 3.75 | 1.25 | 2.5 | |||
400/1 | 7.5 | 1.25 | 2.5 | |||
500/1 | 10 | 1.25 | 3 | |||
600/1 | 10 | 1.5 | 3 | |||
50/5 | 2.5 | |||||
75/5 | 2.5 | |||||
100/5 | 2.5 | |||||
200/5 | 3.75 | |||||
300/5 | 5 | |||||
400/5 | 7.5 | 2.5 | ||||
500/5 | 7.5 | 2.5 | ||||
600/5 | 10 | 3.75 |
Model | Primary rated current | Rated load | Aperture (mm) | Description (mm) | Weight (kg) | Material | Water-proof |
---|---|---|---|---|---|---|---|
LZCK-55 | 100-1500A | ≤10VA | φ55 | 180×138×52 | 2 | PC | IP65 |
LMCK185-10 | 300-3000A | ≤25VA | φ185 | 350×283×55 | 4.5 | PC | IP65 |
LZCK310-10 | 300-600A | ≤10VA | φ50 | φ50 x φ110 x 32 | 1 | Resin | silicon case (option) |
LZCK322-10 | 30-600A | ≤10VA | φ50 | φ50 x φ110 x 52 | 1.6 | Resin | silicon case (option) |
LZCK350-10 | 20-600A | ≤25VA | φ50 | φ50 x φ110 x 105 | 3.1 | Resin | silicon case (option) |
LZCG530-10 | 30-600A | ≤20VA | φ45 | φ45 x φ120 x 65 | 2.1 | Resin | silicon case (option) |
Be sure to the type, current ratio, accuracy class, rated load and use of the products when you plan to make a order. Special specifications could be customized.All kinds of different specifications and parameters current transformers can be made according to your needs.
P1, P2 is primary polarity terminal, S1, S2 is secondary polarity terminal.
P2, S2 is homonymous terminals (subtractive polarity).
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