GTT-841 Transformer differential relay, China Suppliers and Manufacturers

GTT-841 Transformer differential relay

Supplier Info

Changsha Guotong Electrical Technology Co., Ltd.

[China Supplier]

Contact Person : Ms. Wu Betty

Tel : 0086-0731-84210990

Fax : 0086-0731-84490880

Product Detail

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	√ √