11kv / 24kv, 35kv Indoor Single-Phase Epoxy Resin Casting Type Current Transformer

• Application: Electronic, Instrument
• Type: Current Transformer
• Phase: Single
• Model NO.: LZZBJ9-10
• Operation Condition: Indoor
• Usage: Protection, Measurement
• Winding Form: Single Layer & Tightly Wound Type
• Insulating Medium: Epoxy Resin
• Installation: Strut Type
• Magnetic Circuit Structure: Single Stage Type
• Voltage Transformation Principle: Electromagnetic Type
• Transport Package: Wooden
• Specification: ISO9001, GB/T20840, IEEE, IEC
• Trademark: DAHU
• Origin: China
• HS Code: 8504311000
• Production Capacity: 10000PCS/Mouth

Product Description

This type of current transformer adopts epoxy-resin vacuum casting and fully enclosed post structure, is applicable for power systems of rated frequency 50Hz or 60Hz rated voltage up to and including 10kV, used for electric energy metering, 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 GB20840.1-2010 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.


NORMAL ENVIRONMENTAL USAGE

1. Altitude: Should not exceed 1000m
2. Ambient temperature:-5ºC~+40ºC
3. Air Relative Humidity: Less than or equal to 85%
4. Air relative site: Indoor.

TECHNICAL PARAMETERS

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

TRANSFORMER RATIO
 

Rated primary current(A)	Accuracy class	Rated output(VA)	Rated short-time thermal current(kA/s)	Rated insulation level(kA)
5	0.2S 0.2S/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			172	144