Earthing Oil Immersed Power Transformer 220kv 240mva Compact Structure

Price Negotiable

Price: Pending

MOQ: 1set

Delivery Time: 60 days

Brand: Tianan Electric

Product Description

220 Kv 240 MVA Oil Immersed Power Transformer Earthing Transformer

Product Overview

For 220kV Oil immersed type transformer,which is substation main transformer.The grounding transformer is used to provide a path to an ungrounded system or when the system neutral is not available for some reason, for example, when a system is delta connected. It provides a low impedance path to the neutral and also limits the transient overvoltage when the ground faults occur in the system. The grounding of the system can be done in the following way

Usage Environment

1. Elevation: Not more than 2000 meters.

2. Ambient temperature:

Max. + 50℃.

Min.: -45℃.

To be defined in details at ordering.

Standard

GB 1094.1-2003 GB 1094.2-2003

GB 1094.3-2003 GB 1094.5-2003

JB/T 5344.1-2004 J B/T 6303-2004

JB/T 8506-1996 JB/T 8636-1997

JB/T 9640-1999

Technical Parameters

Rated capacity (kVA)	Voltage combination			Connection symbol	No -load loss (kW)	Load loss (kW)	No -load current (%)	Short -circuit impedence (%)	Cross weight(t)


	HV(kV)	HV tapping range (%)	LV(kV)


31500	220 242	±2×2.5	6.3 6.6 10.5	YNd11	28	128	0.56	12~14	40
40000					32	149	0.56		45
50000					39	179	0.52		55
63000					46	209	0.52		65
75000			10.5 13.8		53	237	0.48		75
90000					61	273	0.44		85
120000					75	338	0.44		110
150000			10.5 13.8 15.75 18 21		89	400	0.40		125
160000					93	420	0.39		130
180000					102	459	0.36		145
240000					128	538	0.33		180
300000			15.75 18 21		151	641	0.30		210
360000					173	735	0.30		240
370000					176	750	0.30		250