GE Multilin HID Instruction Manual Download Page 22

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ACCEPTANCE TESTS

4.5

MEASURES

Latching relay coil resistor (only for latching relay option) :

Latching relay

option

Terminals A1 – A3

Terminals B10 – B12

1 (48 Vdc)

340 Ohm

2 (125 Vdc)

2K15

3 (220 Vdc)

4K2

NOTE: An error of 20% will be admitted

Resistors Measure:

Check that the resistor value between terminals is:

•

2K with latching relay

•

1K without latching relay

NOTE: An error of 12% will be admitted

C12 – D8

C11 – D7

C10 – D6

Thyrites current measure:

Applied voltage

Thyrite Terminals

290 Vac

C12 – D4

2 - 10 mA

C11 – D3

2 – 10 mA

C10 – D2

2 - 10 mA

GEK-113064

HID High Impedance Differential Module

4-3

Summary of Contents for Multilin HID

Page 1: ...2 E gemultilin ge com Internet www GEMultilin com Copyright 2005 GE Multilin HID High Impedance Differential Module Instruction manual GEK 113064 GE Multilin Avda Pinoa 10 48170 Zamudio SPAIN T 34 94...

Page 2: ...3 2 STABILIZING RESISTORS 2 2 2 3 3 LATCHING RELAY 2 3 2 3 4 ENVIRONMENTAL 2 3 2 3 5 TYPE TESTS CERTIFICATIONS 2 4 2 3 6 APPROVALS 2 4 3 HARDWARE 3 1 3 1 MODULE DESCRIPTION 3 1 3 1 1 MOUNTING 3 2 3 1...

Page 3: ...TABLE OF CONTENTS 1 2 HID High Impedance Differential Module GEK 113064...

Page 4: ...that all warnings and cautions in this manual are reviewed to help prevent personal injury equipment damage and or downtime 1 1 1 CAUTIONS AND WARNINGS CAUTION The operator of this instrument is advi...

Page 5: ...t you receive the following items with your device Mounting screws for rear terminals and for fixing the device to a cabinet Wiring diagram Certificate of compliance For product information instructio...

Page 6: ...e Tel 34 94 485 88 54 Fax 34 94 485 88 38 Email multilin tech euro ge com Worldwide Tel 1 905 294 6222 Fax 1 905 201 2098 Email multilin tech ge com The information provided herein does not intend to...

Page 7: ...safety instructions below The ground screw shown in the following figure must be correctly grounded Grounding screw FIGURE 1 3 GROUNDING SCREW LOCATION GE Multilin will not be responsible for any dam...

Page 8: ...together with voltage limiters MOV to be used with a high speed overcurrent relay in order to obtain a high impedance differential protection scheme External CT s are differentially connected exactly...

Page 9: ...instructions Review all WARNINGS and CAUTIONS 1 4 2 FRONT PLATE BUTTON The HID front plate incorporates a reset pushbutton to reset the latching relay once the fault has been cleared in order to elim...

Page 10: ...s generators or motors as well as restricted earth fault protection HID modules are available in single phase models for applications such as restricted earth fault protection in a transformer winding...

Page 11: ...lay 2 125 Vdc Latching relay 3 220 Vdc Latching relay 2 3 TECHNICAL SPECIFICATIONS SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 2 3 1 VOLTAGE LIMITERS TECNOLOGY MOV METAL OXYDE VARISTOR Rated V...

Page 12: ...ing 1 second Make and carry 30 A Breaking 5000 VA non inductive at 250 Vac 375 W inductive at 125 Vdc 250 W inductive at 250 Vdc ENVIRONMENTAL Temperature range 20 C to 60 C Maximum relative humidity...

Page 13: ...vironmental and operating requirements established in ANSI standards C37 90 IEC 255 5 IEC 255 6 and IEC 68 Electrical Environment Test Standard Class IEC 60255 5 Insulation Dielectric 2kV IEC 60255 5...

Page 14: ...special care should be taken while manipulating HID modules Operators before even touching any components must make sure that their bodies are not charged by either touching a grounded surface or by u...

Page 15: ...s among the stabilizing resistors MOV and latching relay contacts Components are mounted on a base screwed to the rear side of the case The module is closed with the frontal plate where the latching r...

Page 16: ...n It is made of stainless steel AISI 304 coated with an epoxy layer and the rest of the metallic pieces are covered with a high quality resistive coating that has successfully passed at least 96 hours...

Page 17: ...nts Stabilizing resistor MOV Contact from latching relay Inputs vary depending on the HID model chosen Thus if the model corresponds to a type 1 application in the model selection list HID will have o...

Page 18: ...ed overcurrent module trips latching relay contacts short circuit stabilizing resistor plus current input In this way excessive heating causing damage to resistors is avoided MOV is used to avoid over...

Page 19: ...d together with a high speed overcurrent module or it can be mounted alone FIGURE 3 5 shows the drilling panel for this situation FIGURE 3 5 DIMENSIONS AND DRILLING FOR HID MODULE 3 6 HID High Impedan...

Page 20: ...inputs For other models please check the corresponding external wiring diagram 4 2 VISUAL INSPECTION Verify that the HID unit has not suffered any damage due to its handling and transport Verify that...

Page 21: ...uring one second In case the Hi Pot device used to test the relay trips due to excessive consumption apply the test between each group and ground one at a time 2500 RMS volts will be applied progressi...

Page 22: ...20 Vdc 4K2 4K2 NOTE An error of 20 will be admitted Resistors Measure Check that the resistor value between terminals is 2K with latching relay 1K without latching relay NOTE An error of 12 will be ad...

Page 23: ...sed and that there is continuity between each pair of them Apply voltage to terminals B9 and B12 and verify that latching relay contacts opening time is below 20 ms Check that all auxiliary contacts h...

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