With its long experience in the field of static relays (more than 700.000 units in operation throughout the world), CEE still provides these relays for ease of replacement in upgrade and re-fit projects as well as for new installations.

All the protection relays of the static tange are supplied in modular case R type.

DEVICE   LIST

	Device	ANSI	Description
	DTM 7033	87G, 87M	Machine Differential Protection relay
	DTT 7031	87T	Transformer Differential Protection
	FTT 7111	24	Overfluxing relay
	GTM 7111	78	Synchronous motor out-of-step protection relay
	HDG 7020	81<, 81>	Under and Over Frequency relay
	IAG 7000	87	High impedance differential protection
	ITD7000	67, 67N	Phase and earth directional overcurrent relay
	ITF 113 ITF 114 ITF 115	64	Zero sequence detectors for low voltage networks
	ITG 7000	50, 51, 50N, 51N, 37 (only ITG7118)	Phase and Earth Overcurrent and Undercurrent relay
	ITH 7111 ITG 7011 ITG 7111	64	Sensitive zero sequence relays supplied from ring CT
	ITI 7521	46	Alternator negative sequence protective relay
	ITV 7x66	51V	Voltage restrained overcurrent relay
	PTG 7000	32, 37	Over and under power protection
	STEP 7000	26	Temperature supervision relay
	STS 7041	25	Check synchronizing relay
	TTB 7000	27DC, 59DC	Measuring relay for DC applications
	TTE 7000	64R	Rotor earth fault relay
	TTG 7000	27, 59, 59N	Undervoltage and overvoltage relays
	TTGB 7031	60	Voltage balance relay
	WTG 7000	32P, 37P, 32Q, 37Q	Active or reactive power relay
	YTM 7111	40	Loss of field relay