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Product model: IS200TVIBH2BBB

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GE General Electric Technical Specifications: IS200TVIBH2BBB

The 750 and 760 have five channels for AC current inputs, each with an isolating transformer and an automatic

IS200TVIBH2BBB shorting mechanism that acts when the relay is withdrawn from its case. There are no internal ground connec

tions on the current inputs. Current transformers with 1 to 50000 A primaries may be used.

Verify that the relay’s nominal input current of 1 A or 5 A matches the secondary rating of the

connected CTs. Unmatched CTs may result in equipment damage or inadequate protection.

IMPORTANT: The phase and ground current inputs will correctly measure to 20 times the cur

rent input’s nominal rating. Time overcurrent curves become horizontal lines for currents

above the 20 × CT rating. This becomes apparent if the pickup level is set above the nominal

CT rating.


brand Product Name Product model Order No
GE Fanuc Module card IS200TVIBH2BBB 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


There are two dedicated ground inputs referred throughout this manual as the ‘Ground Current’ and the ‘Sensi

tive IS200TVIBH2BBB Ground Current’ inputs. Before making ground connections, consider that the relay automatically calcu

lates the neutral (residual) current from the sum of the three phase current phasors. The following figures show

three possible ground connections using the ground current input (terminals G10, H10) and three possible sen

sitive ground connections using the sensitive ground current input (terminals G3, H3).

The ground input (terminals G10, H10) is used in conjunction with a zero sequence CT as source, or in the

neutral of wye-connected source CTs. The ground current input can be used to polarize both the neutral and

sensitive ground directional elements. When using the residual connection set the Ground CT Primary setpoint

to a value equal to the Phase CT Primary setpoint.

The sensitive ground current input is intended for use either with a CT in a source neutral of a high-impedance

grounded system, or on ungrounded systems. On ungrounded systems it is connected residually with the

phase current inputs. In this case, the Senstv Gnd CT Primary setpoint should be programmed to a value

equal to the Phase CT Primary setpoint. The sensitive ground current input can be connected to a zero

IS200TVIBH2BBB sequence CT for increased sensitivity and accuracy when physically possible in the system.

Units that do not have the Sensitive Ground input (such as older units which have been upgraded

with new firmware) will use the G3, H3 terminals as the polarizing input. Terminals G10, H10 are

used for the Ground input. These connections will be shown on the terminal assignment label on the

back of the relay’s case.

The Sensitive Ground input (G3, H3 terminals) must only be used on systems where the maximum

ground current does not exceed 500 A.

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