GE IS200ICIAH2A Speedtronic Mark VI Series

Product name:
GE IS200ICIAH2A Speedtronic Mark VI Series

Product model: IS200ICIAH2A

Quantity: inventory

Part No./PN: IS200ICIAH2A

Warranty: We provide warranty service for IS200ICIAH2A

Shipping Port:FuJian

Product technical documents: no relevant documents

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GE General Electric Technical Specifications: IS200ICIAH2A

Time overcurrent tripping time calculations are made with an internal “energy capacity” memory variable. When this vari

able indicates that the energy capacity has IS200ICIAH2A reached 100%, a time overcurrent trip is generated. If less than 100% is accu

mulated in this variable and the current falls below the dropout threshold of 97 to 98% of the pickup value, the variable must

be reduced. Two methods of this resetting operation are available, “Instantaneous” and “Linear”. The Instantaneous selec

tion is intended for applications with other relays, such as IS200ICIAH2A most static units, which set the energy capacity directly to zero

when the current falls below the reset threshold. The Linear selection can be used where the 489 must coordinate with

electromechanical units. With this setting, the energy capacity variable is decremented according to the following equation


brand Product Name Product model Order No
GE Fanuc Module card IS200ICIAH2A nothing
Place of Origin Marketable land Imported or not defects liability period
Europe and America Nationwide and overseas yes a year
Place of shipment Delivery method How to use Applicable industries
Xiamen Shunfeng Express Commissioning and installation Power Plant Steel Plant Cement Plant Shipboard Papermaking
Service advantages Foreign import, goods preparation and supply Reasonable price and reliable quality Pictures are for reference only
Product features Primary source of goods, supply by model After sales guarantee Chen 1810693-7731


When a synchronous generator is offline, there should be no measurable current flow in any of the three phases unless the

unit is supplying its own station load. Also, since the IS200ICIAH2A generator is not yet online, differentiation between system faults and

machine faults is easier. The offline overcurrent feature is active only when the generator is offline and uses the neutral end

CT measurements (Ia, Ib, Ic). It may be set much more sensitive than the differential element to detect high impedance

phase faults. Since the breaker auxiliary contacts wired to the 489 Breaker Status input may not operate at exactly the

same time as the main breaker contacts, the time delay should be coordinated with the difference of the operation times. In

the event of a low impedance fault, the differential element will still shutdown the generator quickly.

If the unit auxiliary transformer is on the generator side of the breaker, the pickup level must be set greater

than the unit auxiliary load

The logic diagram for the inadvertent energization protection feature is shown below. The feature may be armed when all of

the phase voltages fall below the undervoltage pickup level and the unit is offline. This would be the case when the VTs are

on the generator side of the disconnect device. If however, the VTs are IS200ICIAH2A on the power system side of the disconnect device,

the feature should be armed if all of the phase voltages fall below the undervoltage pickup level or the unit is offline. When

the feature is armed, if any one of the phase currents measured at the output CTs exceeds the overcurrent level pro

grammed, a trip will occur.

5 seconds to arm, 250 ms to disarm.

Protection can be provided for poor synchronization by using the “U/V or Offline” arming signal. During normal synchroniza

tion, there should be relatively low current measured. If however, synchronization is attempted when conditions are not

appropriate, a large current that is measured within 250 ms after the generator is placed online would result in a trip.

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Lead time problem
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