High Precision Split Core Current Transformer for Smart Metering

• Customization: Available
• Application: Electronic, Instrument, Electricity Meter
• Type: Current Transformer
• Model NO.: KF-88
• 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

Product Description

 

    TOPRO KD Series split core current transformer, with 1A or 5A output for industrial applications.

The CT is designed to fit with conductors(Cable/Wire)easily, without cutting the circuit. There are total 8 sizes available with different amounting holes.

 

Features:

 

1.     Double-screw fastening, can be installed easily.

2.     multiple window sizes, allowing clamping cables or bus-bars.

3.     Primary current from 5A to 5000A.

 

Applications

 

1.Measurement, monitoring and protection for electrical wiring and instrument.

2.Current and power measurement for electric motors, lighting, air compressor, heating and ventilation system, air-condition     equipment and automation-control system.

3.Relay protection device.
 

Technical index

Rated   input current	5A-5000A
Rated   output current	5A,1A
Rated   voltage	0.66KV
Accuracy   class	0.2S ,   0.5S, 0.2, 0.5, 1 class;
Frequency	50/60   Hz
Power   factor	Cosφ=1.0;
Dielectric   strength	4.0KV/1mA   ,No breakdown for 60S
Insulation	DC   500V/1000MΩ Min
CT   core	Silicon   steel
Connection	screws
Operating   temperature	-25-+75   ºC
Air   humidity	≤ 85%( at 20ºC);

 

KD series Specs and parameters

Model	Split core current transformer KD-88
Current ratio	250A/5A	300A/5A	400A/5A	500A/5A	600A/5A	800A/5A	1000A/5A
Burden(VA)	2.5VA	2.5VA	2.5VA	2.5VA/5VA	2.5VA/5VA	5VA	5VA/10VA
Accuracy Class	1.0	1.0	0.5/1.0	0.5/1.0	0.5/1.0	0.5/1.0	0.5/1.0
Frequency(Hz)	50/60Hz	50/60Hz	50/60Hz	50/60Hz	50/60Hz	50/60Hz	50/60Hz
Dielectric strength	2.5KV/1mA for 60 seconds
Operating temp.	-25° C - 75° C
Storage Temp	-40° C -75° C
CT core	Silicon steel
ROSH compliance	Yes

 

Outline dimensions.

Models	Outline dimension(mm)
	A	B	C	D	E
KD-23	23	32	90	112	40
KD-46	40	60	113	140	40
KD-58	52	82	123	163	40
KD-510	53	103	141	190	48
KD-88	82	82	144	161	36
KD-812	82	122	152	204	40
KD-614	63	143	162	210	51
KD-816	83	163	182	251	52