Lzzbj4 - 35kv Indoor Single Phase Fully Enclosed Post Types of Energy Meter CT Current Instrument Transformers

• Customization: Available
• Application: Instrument, Metering
• Type: Voltage Transformer
• Model NO.: LZZBJ4-35
• Phase: Single
• Operation Condition: Indoor
• Usage: Protection, Measurement
• Winding Form: Single Layer & Tightly Wound Type
• Insulating Medium: Epoxy Resin
• Installation: Extension Type
• Magnetic Circuit Structure: Single Stage Type
• Voltage Transformation Principle: Electromagnetic Type
• Altitude: Should Not Exceed 1000m
• Insulation Level: 40.5/95/200kv
• Power Factor: Cosφ=0.8(Lag)
• Rated Secondary Current: 5A or 1A
• Rated Frequency: 50Hz or 60Hz
• Air Relative Site: Indoor
• Transport Package: Export Box
• Trademark: DGG
• Origin: China
• HS Code: 8504311000
• Production Capacity: 100000PCS/Year
• Package Size: 35.00cm * 7.00cm * 77.00cm
• Package Gross Weight: 78.000kg

Product Description

Our factory

We are professional manufacturer of current transformer voltage transformer, Vacuum Circuit Breakers/Recloser,Isolation switches,Dropout Fuse Cut-out,Lightning Arresters,High and Low Voltage Cabinets,Metering Devices,Power Distribution Transformers  etc.

General

This type of current transformer adopts epoxy-resin vacuum casting and a fully closed single-phase structure for indoor use, is applicable for power systems of rated frequency 50Hz or 60Hz and rated voltage up to and including 35kV, used for electric energy metering and current measurement and relay protection, it can be an arbitrary combination of classes 0.2S, 0.2, 0.5 and 10P.

It complies with the standards GB 20840.1 - 2010 Instrument transformers 
Part 1: General requirements, GB 20840.2 - 2014 Instrument transformers
Part 2: Additional requirements for current transformers, and JJG 313-2010 Instrument Current Transformers

Model And Meaning


Normal Usage Conditions

1. Altitude: should not exceed 1000m
2. Ambient temperature: -5ºC ~ +40ºC
3. Air relative site: Indoor

Technical Parameters

1. Compliance Standards: GB/T 20840.1&3 and IEC61869-1&2
2. Insulation level:40.5/95/200kV
3. Power factor:cosφ=0.8(lag)
4. Rated secondary current: 5A or 1A
5. Rated frequency:50Hz or 60Hz
6. Weight: 78kg

Technical Ratio

Table 1: Single Parameter Ratio
 

Rated Primary Current (A)	Accuracy class	Rated output(VA)	Rated Short-Time Thermal Current(kA/S)	Rated Insulation Level (kA)
5	0.2S/0.5/10P10/10P10 0.2S/0.5/10P20/10P20	15/15/30/30 15/15/20/20	0.36	0.9
10			0.72	1.8
15			1.08	2.7
20			1.44	3.6
25			1.8	4.5
30			2.16	5.4
40			2.88	6.3
50			3.6	7.2
60			4.32	8.1
75			5.4	13.5
80			5.76	14.4
100			7.2	18
120			8.64	21.6
150			10.8	27
200			14.4	36
250			18	45
300			21.6	54
400			28.8	63
500			36	72
600			43.2	108
800			57.6	120
1000-1500	0.2S/0.5/10P30/10P30	15/15/20/20	72	144

Table 2: Double Parameter Ratio
 

Rated Primary Current (A)	Accuracy class	Rated output(VA)	Rated Short-Time Thermal Current(kA/S)	Rated Insulation Level (kA)
50 - 100	0.2S/0.5/10P10/10P10 0.2S/0.5/10P20/10P20	15/15/30/30 15/15/20/20	7.2	18
60 - 120			8.64	21.6
75 - 150			10.8	27
80 - 160			11.52	28.8
100 - 200			14.4	36
150 - 300			21.6	54
200 - 400			28.8	72
250 - 400			36	90
300 - 600			43.2	108
400 - 800			57.6	120
500 - 1000			72	120
600 - 1200			72	144
800 - 1600			100	160

Table 3: Tripple Parameter Ratio
 

Rated Primary Current (A)	Accuracy class	Rated output(VA)	Rated Short-Time Thermal Current(kA/S)	Rated Insulation Level (kA)
50-75-100	0.2S/0.5/10P10/10P10 0.2S/0.5/10P20/10P20	15/15/30/30 15/15/20/20	7.2	18
75-100-150			10.8	27
100-150-200			14.4	36
150-200-300			21.6	54
200-300-400			28.8	72
300-400-500			36	90
200-400-600			43.2	106
400-600-800			57.6	120
500-600-800			57.6	144
600-800-1000			72	180

Outline And  Installation Dimension


Our Customer

Our customers are located all over the world.