23kv 60Hz Epoxy Resin Outdoor Pole Mounted Combined CT PT Transformer

• Application: Instrument
• Type: Combined Transformer
• Phase: Three
• Operation Condition: Outdoor
• Usage: Protection, Measurement
• Winding Form: Multilayer Honeycomb Type
• Model NO.: CCPT3
• Insulating Medium: Epoxy Resin
• Installation: Extension Type
• Transport Package: Wooden
• Specification: 13.8KV
• Trademark: HEMG
• Origin: China
• Production Capacity: 10000

Product Description

 

SPECIFICAITON OF 23KV COMBINED CT PT TRANSFORMER

1. Model: CCPT -23

 

1. Standard:IEC 61869-1&2&3&4Instrument transformers.CFE VE100-29

3. Working Condition
3.1 The highest voltage for equipment / frequency:25.8kV
3.2 Frequency: 60Hz
3.3 Working Temperature:-40ºC~+40ºC
3.4 Three phase,Outdoor
3.5 Creepage distances: ≥28mm/Kv
3.6 Wind Speed :120km/h
3.7 Sea Level :≥2500m

4. Application  
Applicable to the frequency of 60Hz, the highest voltage of 24kV, which is used for measurement and protection., suitable for pole mounted ,outdoor
5. Main technical requirements
5.1 Wiring connecting diagram

5.2 Parameter sheet
5.2.1 data  of voltage transformer

Rated primary voltage (V)	Rated primary voltage(V)	Accuracy	Rated Burden(VA)	Voltage factor	VAth(VA)	Rated insulation level(kV)
14400	120	0.2	50	1.2Un/continue 1.9Un/8h	500	24/50/125 kV Ext.BIL:150kV

5.2.2 data  of current transformer

Rated ratio	Rated load (VA)	Accuracy	Icth	Ith(kA/1s)	Idyn(kA)	Rated insulation level(kV)
10/5A,50/5A 200/5A	10	0.2S	200%	80×Ipr	2.5×Ith	24/50/125 kV Ext.BIL:150kV

5.3 Withstand requirement: (installation site should be not more than 1000m under standard pressure )
5.3.1 Inductive withstand voltage: Pri.-Sec. &Ground 50kV/40s@180Hz,
5.3.2 Power frequency withstand voltage: Sec.-Sec. &Ground 3kV/1min, N earth terminal - Sec. &Ground: 3kV/1min
5.4 Insulation resistance test
Pri.-Sec. &Ground:  ≥1000MΩ/DC2500V, Sec.-Sec. &Ground: ≥500MΩ/DC2500V
5.5 Partial discharge: meet standard IEC61869-1:2007
6.Dimension  

Fig.1  Outline dimension