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Contact Person : Ms. Wu Betty
Company Name : Changsha Guotong Electrical Technology Co., Ltd.
Tel : 0086-0731-84210990
Fax : 0086-0731-84490880
Address : Hunan,Changsha,4F,A4 Building,Lugu International Industrial Park, No.229,Tongzipo West Road, Changsha High-Tech Development Zone
Country/Region : China
Zip : 410205

GTT-841 Transformer differential relay

Product Detailed

GTT-841 transformer differential relay: 1>4U standard aluminum 2>CANBUS bus link 3>Dual 482 4>circuit breaker operation

GTT-841 Transformer differential relay:

GTT-841 transformer differential relay, is applicable to all levels of 110kV and below voltage level of the main transformer protection. GTT-841 as the main transformer unit protection devices to achieve a differential transformer unit differential protection and generator protection.

Functional Configuration

	Function name	841
Protection	Poor flow down transformer unit	√ √
	Transformer unit rate differential (second harmonic restraint)	√ √
	TA breaking blocking transformer unit rate differential	√ √
	Differential current transformer unit more alarm limits	√ √
	Poor flow generator off	√ √
	Generator percentage differential	√ √
	TA breaking blocking rate differential generator	√ √
	The more limited differential flow generator alarm	√ √
Operating circuit	Independent power transfer with anti-lock function operation circuit	√ √
Operating circuit	Control loop abnormal alarm	√ √
Control Function	16 Yao letter open access, remote device letter shift, the accident telesignalling	√ √
	Remote control division and the normal circuit breaker	√ √
	Switching frequency of accident statistics and events division and SOE, etc.	√ √
	Fault recorder	√ √
On time	GPS can be realized on, the network time	√ √
Communicate	Ethernet, CAN/RS232/485 communication interface	√ √

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