Lzzbj9 10 Indoor Fully Sealed Post Types of Current Instrument Transformer Single Phase Transformers

• Application: Instrument, Metering
• Type: Voltage Transformer
• Phase: Single
• Operation Condition: Indoor
• Usage: Protection, Measurement
• Winding Form: Single Layer & Tightly Wound Type
• Model NO.: LZZBJ9-10A3G
• Insulating Medium: Epoxy Resin
• Installation: Extension Type
• Magnetic Circuit Structure: Single Stage Type
• Voltage Transformation Principle: Electromagnetic Type
• Insulation Level: 12/42/75kv
• Power Factor: Cosφ=0.8(Lag)
• Rated Secondary Current: 5A or 1A
• Rated Frequency: 50Hz or 60Hz
• Altitude: Should Not Exceed 1000m
• Air Relative Site: Indoor
• Transport Package: Export Box
• Trademark: DGG
• Origin: China
• HS Code: 8504311000
• Production Capacity: 100000PCS/Year

Product Description

Photos of product

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 10kV, 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 10Pcurrent

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:12/42/75kV
3. Power factor:cosφ=0.8(lag)
4. Rated secondary current: 5A or 1A
5. Rated frequency:50Hz or 60Hz
6. Weight: 21kg

Technical Ratio

Table 1: Transformation Ratio Parameters
 

Rated Primary Current (A)	Accuracy class	Rated output(VA)	Rated Short-Time Thermal Current(kA/S)	Rated Insulation Level (kA)
5	0.2S 0.2S/0.5 0.2S/0.5/10P10 0.2S/10P10	10 10/10 10/10/15 10/15	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			72	144

Outline And Installation Dimension

Eng. ADOFO MICHAEL ADJEI / BSc, MSc
Project Manager, Foreign Trade and Technology
Denggao Electric Co. Ltd
Head Office: No 208 Weiwu Lu, Economic Development Zone. Yueqing - China