Description

GE/ Alstom Over current & Earth fault Protection (IDMT relay) CDG11AF013SACH

Technical Specification of GE/ Alstom Overcurrent & Earth fault Protection CDG11AF013SACH
• Type: Electro Mechanical Relay
• Protection Type: Over current & Earth fault Protection(IDMT Relay)
Features
. Identical time/current characteristics on all taps.
.Self-powered, no necessity for separate auxiliary supply.
.High torque, ensuring consistent timing even under adverse conditions.
. Very low overshoot.
.Simple construction, easily accessible.
.Comprehensive range of high-set unit ratings.
.Dustproof drawout case and tropicalised finish.
Application:
Selective phase and earthfault protection, in time graded systems for AC machines, transformers,
Feeders etc.
General description
A non-directional heavily damped induction disc relay which has an adjustable inverse time/current
characteristic with a definite minimum time. The relay has a high torque movement combined with
low burden and low overshoot. The relay disc is so shaped that as it rotates the driving torque increases and offsets the changing restraining feature combined with the high torque of the control spring. This torque of the relay ensures good contact pressure even at currents near pick-up. Damping of the disc movement is by a removable high retentivity permanent magnet.

Pioneering key principle advancements over the last 100 years, GE continues to lead the way making new protection, control and automation applications possible. Our solutions continue GE’s century long tradition of power system innovation. From generators to transmission lines, to motors and beyond, we ensure dependable, safe power worldwide. GE offers a wide range of single function and auxiliary relays, along with a portfolio of accessories, to support high performing and reliable protection and control systems.
GE offers a wide range of single function and auxiliary relays, along with a portfolio of accessories, to support high performing and reliable protection and control systems.
Single Function:
Single function protection for applications including overcurrent, voltage and frequency, differential , directional, timing and distance.
Auxiliary relays:
A variety of auxiliary relays including multicontact, trip and lockout, annunciator and hinged armature relays.