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Rated primary current (A)	Accuracy classes combination	Rated output (VA)	1s thermal current (kA)	Rated dynamic current (kA)
20-40;40	0.2/0.5 0.5S/0.5 0.5/0.5 0.2/0.5 0.2/10P10 0.5/10P10 10P10/10P10 10P15/10P15 10P20/10P20 0.2S/0.5/10P10 0.2S/0.5/10P20	10/10 10/10 10/10 10/10 10/15 10/15 10/15 10/10 10/10 10/15/15 15/15/20	6.3	15
30-50;50			7.5	18.75
40-75;75			15	37.5
50-100;100			18	45
75-150;150			25	55
100-200;200			50	110
150-300;300			60	130
200-400;400
300-600;600
400-800;800
500-1000;1000			80	160
1200-1500;1500

 

 

Rated primarycurrent(A)	Accuracy classes combination	Rated secondary output (VA)	1s thermal current (kA)	Rated dynamic current (kA)
10-15-20	0.2/0.2 0.2/0.5 0.5/0.5 0.2/10P10 0.5/10P10 0.2S/0.5/10P10 0.2S/0.5/10P20/10P20	10/10 10/10 10/10 10/15 10/15 10/10/15 15/15/20/20	2.7	4.5
15-20-30			4.2	6.6
20-30-40			6	9
30-40-50			9	11.5
40-50-75			11.3	16.5
50-75-100			16.8	22
75-100-150			24	33
100-150-200			33.6	45
150-200-300			45	63
200-300-400			45	80
300-400-500			45	100
500-600-800			80	130
600-800-1000			80	130

Note f the parameters requested by the user exceedthe range in the table above.Can be determined through consultationwith our company.The rated output and its corresponding accuracy level only meet one of these criteria.

 

 

 

The LZZBW-10 outdoor single-phase epoxy resin casting current transformer is used primarily in electrical power systems for measurement and protection. It is designed to transform high primary currents to a lower, manageable level for meters, relays, and other instruments.

 

 

• High Accuracy: Ensures precise measurement of current, which is crucial for both protection and metering applications.
• Safety: Provides electrical isolation between the high-voltage primary circuit and the low-voltage secondary circuit.
• Compact Design: Suitable for installation in various environments, including those with limited space.
• Robust Construction: Designed to withstand harsh environmental conditions and electrical stresses.
• Wide Range of Applications: Used in power plants, substations, and industrial settings for monitoring and protection purposes.

 

 

• Rated Primary Current: Typically ranges from 5A to several thousand amperes.
• Rated Secondary Current: Commonly 1A or 5A.
• Rated Voltage: 10 kV (indicated by the "10" in the model name).
• Accuracy Class: Varies depending on the specific application but often falls within classes like 0.2, 0.5, 1.0 for metering, and 5P, 10P for protection.
• Frequency: Designed for use in systems with a frequency of 50 Hz or 60 Hz.
• Insulation Level: High insulation levels to ensure safe operation within high-voltage systems.
• Thermal Current Rating: Ability to handle short-term overcurrents without damage.

 

 

• Metering: Provides accurate current measurement for billing and monitoring.
• Protection: Used in protective relays to detect faults and initiate protective measures.
• Control Systems: Integral in control circuits for automated systems.
• Power Quality Monitoring: Helps in monitoring and maintaining power quality by providing accurate current measurements.

 

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