China Zero Sequence Current Transformer manufacturer

Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd.

 

an exclusive current transformer, split core current transformer, current clamp & voltage transformer manufacturer.

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5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device

5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device
5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device
Basic Information
Place of Origin: China
Brand Name: GFUVE
Certification: IEC,ISO,GB，CNAS, CE
Model Number: LZCG530-10-50
Minimum Order Quantity: 3 Pieces
Price: Negotiable
Packaging Details: Standard Export Wooden Box
Delivery Time: 3-7 Days
Payment Terms: T/T, Western Union,Paypal, L/C, D/A, D/P
Supply Ability: 10000 Pieces Per Month
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Primary Current: 30-1000A Load: ≤20VA
Secondary Current: 5A Or 1A Weight (kg): 2.1
Frequency: 50Hz Or 60Hz Instrument Security Factor: FS ≤10
CLASS: 5P20 Ratio: 50/1A
Name: 5P20 Zero Sequence Current Transformer
Highlight:

toroidal current transformer

,

generator current transformer

LZCG530-10 Protection relay device using 5P20 50/1A Zero Sequence Current Transformer
 
Zero Sequence Current Transformer. When ground connection takes place, our LZCG530-10 zero sequence current transformer, or ZSCT, detects the zero-sequence current, and it could work together with protection relays or signaling devices so as to monitor and protect power distribution systems.
 
LZCG530-10 Straight-Through 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 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.
 
Definition: The unbalanced current flows in the circuit during the earth fault is known as the zero sequence current or the DC component of the fault current.The zero phase sequence means the magnitude of three phases has zero phase displacement.The three vector lines represent the zero sequence current and it is detected by adding the vector of three phases current.
Zero sequence current transformers, also known as core balance current transformers (CBCT), detect the presence of zero sequence currents during short circuit fault conditions such as the occurrence of a single line to ground fault that causes unbalanced currents in three-phase systems.
Zero sequence filtering is a concept used to eliminate zero sequence current component from the secondary current of Current Transformer used in Differential Protection of Transformer. This concept is useful in Transformer having earthed Star winding.
 
Parameters

Technical parameters　
StandardsIEC60044-1; IEC 61869-2; ANSI C57.13;NTC 2205; GB1208-2006
Rated primary current30-1000A
Rated load≤20VA
Rated frequency50Hz or 60Hz
Rated secondary current5A or 1A
Rated short-time thermal current40kA, 1S
Rated continuous thermal current120%I1n
Secondary winding power-frequency voltage3kV, 1min
Instrument security factorFS ≤10
Mechanical parameters　
Dimensions (W×D×H) (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　
ConditionNo existence of severely begrimed, erosive and radioactive gas in the air. Permission of long-term operation under rated current.

 
Technical Data

TypeLZCG530-10LZCG530-10LZCG530-10
PurposeMeasuring current transformerProtection current transformerDouble 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)
0.2S0.20.510P2010P1510P100.2S0.510P1510P10
30　　2　　　　　　　
40　　2.5　　　　　　　
50　　3.75　　2　　　　
75　3.755　23.75　　　　
1002.557.5　2.53.75　　　　
15057.5102.53.756.252.53.75　2.5
2007.510153.7557.557.5　3.75
30010152057.5107.5102.55
4001520256.257.5151012.53.755
5002025256.257.51515153.755
6002030307.5102015203.757.5

 
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5P20 50/1A Ratio Electronic Current Transformer Protection Relay Device 0

Tag:

toroidal current transformer,

generator current transformer,

zero phase current transformer

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