Hv Epoxy Resin Cast Zero Sequence Current Transformer for Protection Device

• Customization: Available
• Voltage Type: AC Voltage
• Measuring Principle: Electromagnetic Type
• Model NO.: LZCK2500-10
• Output Signal Type: Digital Type
• Material: New Magnetic
• Accuracy Grade: 0.1G
• Certification: CE
• Name: Zero Sequence Current Transformer
• Usage: Protection Current Transformer
• Application: Protection Device of Current Measurement
• Color: Red and Black
• Ratio: 100-2000A/5A or 1A
• Load: 2.5va-20va
• Diameter: 120mm, 140mm, 160mm
• Class: 5p10, 10p10
• Weight: 7kg-10kg
• Transport Package: Standard Carton Packaging, Each Box 10 Sets
• Specification: CE, PCI PTS, EMV, MasterCard PayPass, Visa paywave
• Trademark: PAX
• Origin: Beijing, China
• HS Code: 8504231100
• Production Capacity: 2000sets/Month

Product Description

Detailed Product Description

Name:	Zero Sequence Current Transformer	Material:	New Magnetic
Usage:	Protection Current Transformer	Application:	Protection Device Of Current Measurement
Color:	Red And Black	Ratio:	100-2000A/5A Or 1A
Load:	2.5VA-20VA	Diameter:	120mm, 140mm, 160mm
Class:	5P10, 10P10	Weight:	7KG-10KG

Theory
Current transformers typically consist of a silicon steel ring core wound with many turns of copper wire as shown in the illustration to the right. The conductor carrying the primary current is passed through the ring. The CT's primary, therefore, consists of a single 'turn'. The primary 'winding' may be a permanent part of the current transformer, i.e. a heavy copper bar to carry current through the core. Window-type current transformers (aka zero sequence current transformers, or ZSCT) are also common, which can have circuit cables run through the middle of an opening in the core to provide a single-turn primary winding. To assist accuracy, the primary conductor should be centered in the aperture.
 
Applications
LZCK2500-10 zero sequence current transformer is suitable for current 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 current transformer can be directly installed at the inlet andoutlet cables.The slice is imported silicon material. Thesemicircular ring core and secondary windings 
zero sequence current transformer is mainly measurement current for Protection device
 
Features
New magnetic material is taken to be the core of the current transformer, which has high magnetic permeability, low saturation magnetization and good stability. Therefore, the measuring accuracy is higher and the instrument security factor is lower. Since the high quality silicon processed by advanced technology is taken to be the core of the protection windings, which assured the accuracy limit factor is higher.
The semicircular ring core and secondary windings are vacuum poured by high quality epoxide resin in the fire retardant plastic casing, which has the characteristic of moisture proof, stable performance and dispensing with maintenance.Small size, light weight, small footprint, fixed in the ring network switchgear cable.The cable can cross the current transformer through its internal poles quickly and uniformly.
The Cast Resin Straight-Through Current Transformer can be divided several kinds according to the various current ratio, accuracy and rated loads. The specific parameters are showed in the corresponding to each model parameter tables.
 
PARAMETERS

Technical parameters
Standards	IEC60044-1; IEC 61869-2; NTC 2205; ANSI C57.13; GB1208-2006
Rated primary current	100-2000A
Rated load	≤20VA
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)	φ120xφ185x100
Weight (kg)	7
Operating conditions
Operating temperature	-35°C to +55°C
Daily average temp	<+40°C
Storage temperature	-40°C to +70°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.

SELECTION GUIDE

Type	LZCK2500-10			LZCK2500-10
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
300/5	5	5	5	2.5	5	7.5
400/5	5	5	5	2.5	5	7.5
500/5	5	7.5	7.5	5	7.5	10
600/5	5	7.5	7.5	5	7.5	10
800/5	10	10	10	5	10	15
1000/5	10	15	15	5	10	15
1200/5	15	20	20	10	15	20
1500/5	15	20	20	10	15	20

SELECTION GUIDE

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	ABS+Resin	IP65
LMCK185-10	300-3000A	≤25VA	φ185	350×283×55	4.5	ABS+Resin	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)
LZCK720-10	20-1000A	≤25VA	φ60	φ80 x φ110 x 50	2.1	Resin	silicon case (option)
LZCK2500-10	500-1500A	≤20VA	φ120	φ120 x φ185 x 100	7	Resin	silicon case (option)
LZCG530-10	30-600A	≤20VA	φ45	φ45 x φ120 x 65	2.1	Resin	silicon case (option)
LZCG930-10	100-1500A	≤25VA	φ60	φ60 x φ155 x 60	3.6	Resin	silicon case (option)
LZCT722-10	20-600A	≤10VA	φ82	φ82 x φ130 x 55	2.3	Resin	silicon case (option)