High Accuracy Split Core Current Transformer for Energy Metering

• Customization: Available
• Application: Electronic, Instrument, Electricity Meter
• Type: Current Transformer
• Model NO.: LMZK3-10
• Phase: Three
• Operation Condition: Indoor
• Usage: Protection, Measurement, Electricity Meter
• Winding Form: Multilayer Honeycomb Type
• Insulating Medium: Epoxy Resin
• Installation: Busbar Type
• Magnetic Circuit Structure: Combined Type
• Voltage Transformation Principle: Capacitive Type
• Accuracy Class: 0.05, 0.1, 0.2
• Application Range: Energy Meter
• Max Current: 5A-300A
• Current Transformer Ratio: 1:1000, 1:2000, 1:2500
• DC Immunity: DC Immunity
• Material: Nano Crystalline, Ferrite Core
• Self Heating Testing: Pass Self Heating Testing
• DC Tolerance: Good DC Tolerance
• Standard: IEC62052-31
• Rosh: Rosh Compliant
• Transport Package: Carton/ Pallet
• Trademark: TOPRO
• Origin: China
• HS Code: 850431
• Production Capacity: 100000000PCS

Product Description

Split core current transformer LMZK1-10 series

 

    LMZK series split-core current transformers are suitable for the current measurement and microcomputer protection below 10kV circuit on AC power systems. This current transformer has many advantages: packed size, small weight, openable and easy installation, etc. They have been widely used in all-insulation loop-network switch cabinets. It can be clamped on the connected cables simply and rapidly. They have been widely used in many all-insulation loop-network switch cabinets such as ABB-Safe Ring/SafePlus, Schneider RM6/SM6, EATON SVS, Germany GA/GE, France FB, and Korea SS.

    This current transformer adopted high-quality silicon steel sheet with high permeability magnetic material, which have features such as divisible iron core and small magnetic circuit loss. High-quality epoxy resin pouring in the plastic casing is adopted by semicircle ring core and secondary winding, which is moisture-resistant with stable performance.

The two-circular rings were clamped on the spilt-phase cables tightly by hoops,     Integrated with the cables, have a delicate appearance.

(Note: current transformers with different specifications and parameters can be customized according to your requirements.)

 

Schematic diagram

The meaning of the model

 

Technical data

Rated secondary current:	5A or 1A
Rated frequency	50Hz or   60Hz
Rated continuous current:	120%ln
Power factor of load	Cosφ=0.8
Power frequency withstand voltage	3kV 1   min

 

LMZK3-10 Specs and parameters

 

Application	Measuring current transformer			Protection current transformer		Double winding current transformer
Rated primary   current (A)	Accuracy   class rated   load (VA)			Accuracy class rated load (VA)		Accuracy class rated load (VA)
	Class 0.5	Class 1.0	Class 3.0	10P10	10P5	Class 0.5	Class 1.0	Class 3.0	10P10	10P5
50			3.75		1.5			1		1
75			5	1.5				1.5		1.5
100		5		1.5			1.5			1.5
150		10		2.5			1.5
200		15		2.5			2.5		1.5
300	20			3.75		2.5			2.5
400	30			5		2.5			2.5
500	50			7.5		3.75			3.75
600	60			10		5			5

 

Outline dimensions (mm)