Gfuve 50/5A Measurement and Protection Level Clamp Ring Type Current Transformer

GFUVE China Manufacturer Supply 50/5A Measurement and Protection Level Clamp Ring Type Current Transformer Current TransformerLZCG5301-10 Cast Resin Straight-Through clamp ring type 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 not only compact fully insulated ring network switchgears such as ABB-Safe Ring/Safe Plus, Unstitch, Schneider RM6, SM6, Siemens 8DJ10/8DH10, Simosec, FBX, Fluokit, Omar Garbo GA, GAE; SEL TPS(Q); VEI Unifluorc; Eaton SVS/12 ring network, but also cable distribution boxes because of its small size, light weight, operable and convenient installation. It is very convenient that the transformer can be directly installed at the inlet and outlet cables.

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.

MODEL MEANING

WIRING DIAGRAMS

P1, P2 is primary polarity terminal, S1, S2 is secondary polarity terminal.
P2, S2 is homonymous terminals (subtractive polarity).

PARAMETERS

Technical parameters
Standards	IEC60044-1; IEC 61869-2;ANSI C57.13; NTC 2205; GB1208-2006
Rated primary current	30-1000A
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 (WxDxH) (mm)	φ45xφ120x65
Weight (kg)	2.1
Operating conditions
Operating temperature	-35°C to +55°C
Daily average temp	<+40°C
Altitude	<3500 meters
Operating conditions - continued
Condition	No existence of severely begrimed, erosive and radioactive gas in the air. Permission of long-term operation under rated current.

TECHNICAL DATA

Type	LZCG530-10	LZCG530-10	LZCG530-10
Purpose	Measuring current transformer	Protection current transformer	Double winding current transformer
Rated primary current (AMP)	Accuracy class and rated load(VA)	Accuracy class and rated load(VA)	Composite accuracy class and rated load(VA)
0.2S	0.2	0.5	10P20	10P15	10P10	0.2S	0.5	10P15	10P10
30			2
40			2.5
50			3.75			2
75		3.75	5		2	3.75
100	2.5	5	7.5		2.5	3.75
150	5	7.5	10	2.5	3.75	6.25	2.5	3.75		2.5
200	7.5	10	15	3.75	5	7.5	5	7.5		3.75
300	10	15	20	5	7.5	10	7.5	10	2.5	5
400	15	20	25	6.25	7.5	15	10	12.5	3.75	5
500	20	25	25	6.25	7.5	15	15	15	3.75	5
600	20	30	30	7.5	10	20	15	20	3.75	7.5

SELECTION GUIDE

Model	Primary rated current	Rated load	Aperture (mm)	Description (mm)	Weight (kg)	Material	Water-proof
LZCK-55	100-1500A	≤10VA	φ55	180x138x52	2	PC	IP65
LMCK185-10	300-3000A	≤25VA	φ185	350x283x55	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)

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