GENERATION TERMINAL ENCLOSUREDISCONNECT SWITCHES

Heavy-duty 89SS and 89ND switches

Your 89ND and 89SS switches require reliability and extended servicelife.

EMSPEC 89ND and 89SS switches have a proven performance in 7FA Gas

Turbine Enclosures around the world. Operated by EMSPEC MR90GT

motor operator, all parts of the switch and operator are made from machined

billet materials.

P D F D ATA S H E E T

89ND SWITCH FEATURES

High strength chromate plated steel base frame;

Reliable silver plated copper contacts and harddrawn copper blades,

Shaft mounted auxiliary contacts;

Operated by motor operator via push-pull aircraftgrade cable (passes under transformer orresistors);

Motor operator is installed next to enclosure doorwhich allows manual operation from outside theGTE;

89SS SWITCH FEATURES

High strength aluminium base frame;

Reliable silver plated copper contacts and harddrawn copper blades;

Shaft mounted auxiliary contacts;

Operated by motor operator via steel linkage;

Motor operator is installed next to enclosure doorwhich allows manual operation from outside theGTE through an access trap;

HEAVY DUTY MOTOR OPERATOR

EMSPEC MR90GT was designed to meet themost severe applications. Situated near the GTEdoors, manual operation is done from theexterior via a new door mounted access trap.Local electric operation is either performed onthe front of the operator or via the optionalremote control panel. The motor operator doesnot require greasing.

GTE DISCONNECT SWITCHES

Rated Voltage: 25kV

Lightning impulse withstand: 125kV BIL

Rated current : 1200A (89ND) and 2000A (89SS)

Rated short-circuit withstand current: 38kA / 3 s

For other ratings consult factory

OPTIONS

This brochure provides a brief introduction. EMSPEC reserves the right to make changes at any time, without notice.

Remote Control Panel