Current Transformer for Vacuum Breaker

• Application: Metering
• Type: Current Transformer
• Phase: Single
• Operation Condition: Outdoor
• Usage: Protection, Measurement
• Winding Form: Single Layer & Tightly Wound Type
• Model NO.: LZW32-10
• Insulating Medium: Epoxy Resin
• Installation: Extension Type
• Magnetic Circuit Structure: Single Stage Type
• Voltage Transformation Principle: Electromagnetic Type
• Transport Package: Export Box
• Trademark: DGG
• Origin: China
• HS Code: 8504311000
• Production Capacity: 100000PCS/Year

Product Description

GENERAL

This type of current transformer adopts a full silicone rubber sheathed structure, is applicable for vacuum circuit breaker switching systems and power systems of rated frequency 50Hz or 60Hz and rated voltage up to and including 10kV, used for relay protection, its class level is 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 4000m
2. Ambient temperature: -25ºC ~ +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: 15kg

TECHNICAL PARAMETERS

Table 1: Transformation Ratio Parameters
 

Rated Primary Current (A)	Rated Secondary Current (A)	Class Combination	Rated Output (VA)	Insulation Level
100-200-300	5	10P10	1.25/2.5/3.75	12/42/75
200-300-400			2.5/3/3.75	12/42/75
200-400-600			5/7.5/10	12/42/75
20 (Zero Sequence)	1	3	0.1	12/42/75

OUTLINE AND INSTALLATION DIMENSION