ABB GridShield 3P User manual

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DISTRIBUTION SOLUTIONS
GridShield®3P/3SP recloser
Installation, operations
and maintenance manual

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Table of contents
12 11 07 06 05 04 03 02 010910 08
Notice 5
1. Important safety notes and warnings 6
1.1 Safety notations 6
2. Introduction 8
2.1 General instructions 8
2.2 Scope of instructions 8
2.3 GridShield® 3P/3SP introduction 8
3. Receiving, handling and storage 9
3.1 Receiving inspection 9
3.2 Handling the equipment 9
3.2.1 GridShield® 3P (single-tank recloser) 10
3.2.2 GridShield® 3SP (three individual poles) 10
3.3 Storing the equipment 11
4. General description 12
4.1 Recloser assembly 12
4.2 Housing 12
4.3 Pole assembly 13
4.4 Control 14
4.4.1 Low voltage control cabinet 14
4.4.2 Control relay 15
4.4.3 Control cable 15
5. Operation 16
5.1 Closing 16
5.2 Opening 16
5.3 Mechanical opening 16
6. Standard production tests (factory only) 17
7. Operational checks prior to installation 18
7.1 Electrical close 18
7.2 Electrical trip 18
7.3 Programmable pushbuttons 19
7.4 Vacuum test procedure 19
8. Installation 20
8.1 Mounting 20
8.1.1 Pole mounting 20
8.1.2 Substation mounting 23
8.1.3 No frame 25
8.2 Grounding 25
8.2.1 Pole-mounted recloser grounding 26
8.2.2 Substation-mount recloser grounding 27
8.3 Arrester protection 28
8.4 Control power 28
8.5 Line connections 28
8.6 Setting voltage correction factors 29
8.7 Final inspection 29
9. Inspection, maintenance and adjustment 30
9.1 Pole replacement 32
9.2 Changing the CT ratio 32
9.3 Relay removal from case 33
10. End-of-life recycle/disposal 34
11. Disclaimer of warranties and limitation of liability 35
12. Appendix A — Typical drawings 36
Revision history 37

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GridShield®
3P/3SP recloser

This document provides information about ABB
products and may refer to relevant standards.
However, the description or reference to a standard
does not imply that all ABB products mentioned in
this document support all features of the described
standard. To determine the specific features
supported by a particular ABB product, please
consult the product specifications.
ABB may have patents or pending patent
applications protecting the intellectual property
of the ABB products described in this document.
The information in this document is subject to
change without notice, and ABB does not make any
commitments. ABB is not responsible for any errors
in this document.
The products described or referenced in this
document are designed to connect and
communicate through network interfaces. It is the
sole responsibility of the system/product owner to
ensure a secure connection between the product
and the network, including any other connected
networks.
The system/product owner must establish and
maintain appropriate security measures, such as
firewalls, authentication, encryption, antivirus
programs, etc., to protect the products, network,
system and interfaces against security breaches,
unauthorized access, interference, intrusion, data
leakage or theft.
—
Notice
ABB conducts functionality testing and releases
updates for the products. However, it is the
ultimate responsibility of the system/product
owner to ensure that any product or system
updates (including code changes, configuration file
changes, third-party software updates or patches,
hardware changes, etc.) are compatible with the
implemented security measures. The system/
product owner must verify the expected
functionality of the system and associated
products in the deployed environment.
ABB shall not be liable for any direct, indirect,
special, incidental or consequential damages
arising from the use of this document. ABB shall
also not be liable for any incidental or consequential
damages arising from the use of the software or
hardware described in this document.
This document and its parts must not be
reproduced or copied without written permission
from ABB, and its contents must not be shared with
third parties or used for unauthorized purposes.
The software or hardware described in this
document is provided under a license and should
only be used, copied or disclosed in accordance
with the terms of that license.

6GRIDSHIELD®3P/3SP RECLOSER
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1 Important safety notes and warnings
The operation of equipment relies on correct handling,
installation and maintenance. Ignoring these essential
requirements can result in harm to individuals,
equipment failure and damage to property. Safety,
as explained in this instruction manual, encompasses
two aspects:
• Personal injury
• Damage to products or property
1.1 Safety notations
Safety notations are important indicators that inform
personnel about potential risks of death, injury or
property damage. These notations are placed prior
to the step where the particular condition is relevant.
There are three levels of hazard notations,
accompanied by a single safety notice. They are
as follows:
Danger indicates a hazardous situation which,
if not avoided, will result in death or serious
injury.
Warning indicates a hazardous situation which,
if not avoided, could result in death or serious
injury.
Caution indicates a hazardous situation
which, if not avoided, could result in minor
or moderate injury.
Notice is used when there is a danger that can
lead to equipment damage only.
For the proper installation, operation and maintenance
of this equipment, it is essential that personnel possess
a comprehensive understanding of local, regional, industry,
government and OSHA safety procedures, as well as
commonly accepted safe working practices. Furthermore,
individuals working in or around this equipment must
exercise common sense and good judgment to recognize
potential hazards for themselves and others in the vicinity.
These instructions are specifically designed for fully
qualified personnel and should not be considered
a substitute for adequate training, experience and
supervision.
If any clarification or additional information is required,
please direct your inquiries to the nearest ABB sales office.
When communicating with ABB regarding the product
covered in this IOM manual, always include the ABB
assigned order number.
The GridShield® 3P/3SP medium voltage three-phase
vacuum recloser should be installed in accordance with the
specified design limitations indicated on its nameplate and
in these instructions.
Additionally, it is crucial to adhere to your company's safety
procedures.
This recloser should never be relied upon as the sole means
of isolating a high voltage circuit. To ensure the safety of
personnel conducting maintenance operations on the
recloser or connecting equipment, all components must be
electrically disconnected using a visible break and securely
grounded.
This product is intended for operation and maintenance
by qualified individuals who have received thorough
training and possess knowledge of the associated hazards.
This publication is exclusively intended for such qualified
individuals and should not be considered a substitute for
adequate training and experience in the safety procedures
for this device.
01

7IMPORTANT SAFETY NOTES AND WARNINGS
02
This document does not provide detailed
descriptions of standard repair procedures, safety
principles or service operations. It is important
to note that certain warnings and cautions are
included to prevent personal injury to service
personnel or damage to equipment. However,
these warnings do not encompass all conceivable
service methods, whether recommended by ABB
or not. Furthermore, ABB cannot anticipate or
investigate every potential hazard resulting from
all conceivable service methods. Therefore, anyone
using service procedures or tools, regardless of
ABB’s recommendations, must ensure that both
personal safety and equipment safety are not
compromised by the selected service method
or tools.
All information contained in this manual is based
on the most up-to-date product information
available at the time of printing. ABB reserves
the right to make changes without notice.

8GRIDSHIELD®3P/3SP RECLOSER
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2 Introduction
2.1 General instructions
Please carefully read these instructions before
proceeding with installation, and refer to them
as a guide throughout the installation and initial
operation process. It is essential to keep these
instructions filed together with other instruction
books, drawings and descriptive data for the
recloser. This manual should always be easily
accessible for future reference during the
equipment’s installation, operation and maintenance.
By following these instructions, you will ensure the
proper maintenance of the equipment and extend
its useful life.
2.2 Scope of instructions
The provided instructions are of a general nature
and cover the requirements for installation, setup,
operation and maintenance of all ratings of the ABB
GridShield®3P/3SP medium voltage three-phase
vacuum recloser. However, please note that these
instructions do not cover all possible variations
and combinations of equipment and installations.
For specific information regarding installations,
please refer to the following resources:
• Bills of materials: These lists include electrical
devices and equipment.
• Single line drawings: These diagrams illustrate
power connections.
• Elementary and schematic diagrams: These
diagrams provide detailed visual representations.
• Connection diagrams: These diagrams show how
different components are connected.
It’s important to understand that these
instructions do not aim to address every possible
question that may arise during the application,
operation and maintenance of the product.
Additionally, as improvements are made to parts
and assemblies, the appearance of some parts
may differ from the illustrations. However, their
functionality will remain equivalent.
2.3 GridShield 3P/3SP recloser introduction
The GridShield vacuum recloser is an advanced
device that operates in three phases. It consists
of three vacuum interrupters, each driven by a
separate magnetic actuator. These components,
along with the voltage and current sensors, are
embedded in a pole cast from a special material
called hydrophobic cycloaliphatic epoxy (HCEP)
polymer. The current-sensing current transformer
(CT) is located in the H2 (horizontal or Y-side)
position. In a standard SVS (single voltage sensing)
unit, the voltage sensor is placed in the H2 bushing.
In a DVS (dual voltage sensing) unit, the voltage
sensors are positioned in both the H1 (vertical or
Z-side) and H2 (horizontal or Y-side) bushings
(see figure 11).
The recloser is equipped with specialized control
functions. It can detect an overload and
automatically open. After a pre-set time delay,
it will close again. If the overload persists, the
recloser will trip and reclose once more. With
the standard GridShield controls (RER620 and
RER615), the recloser can perform up to five
reclosing operations before it locks open.
Alternatively, using the optional Beckwith M-7679
or SEL-651R controls, the recloser allows up to four
reclosing operations before it goes into lockout
mode. To restore normal service, the fault causing
the condition must be eliminated.
To help ensure satisfactory performance of
the recloser, correct installation, adequate
maintenance and proper servicing of the product
are crucial. By carefully studying and following
these instructions, users can maximize the
benefits they obtain from this device.
02

9INTRODUCTION, RECEIVING, HANDLING AND STORAGE
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3 Receiving, handling and storage
The recloser undergoes assembly and testing at
the factory before it is made ready for shipment.
This equipment is carefully packed and sent out
from the factory in impeccable condition. If any
damage is observed, it is important to immediately
contact the carrier for inspection and request an
inspection report. Along with the paid freight bill,
inspection report and invoice, file a formal claim
with the carrier. Additionally, make sure to inform
the local ABB sales office.
3.1 Receiving inspection
Upon receiving the shipment, it is crucial to
promptly inspect it to ensure that the correct
materials have been received. If any items are
missing, notify the local ABB sales office
immediately. As you unpack the items, compare
them against the shipping list.
Make sure to keep the instructions and literature
that come with the recloser together with the unit.
The low voltage control cabinet serves as a
convenient storage location for the instruction
book, schematic diagram, connection diagram,
frame assembly drawing, high voltage wiring
diagram and outline drawing of the unit. If you
need additional copies or a certified test report,
you can request them from the local ABB sales
office.
The enclosure door of the recloser has a
documentation bin on its inner side, and the front
swing panel above the relay also provides access
to it.
3.2 Handling the equipment
Always lift reclosers in an upright position,
considering their high center of gravity. Before
performing any loading operations, ensure that
all necessary precautions to protect personnel
and materials have been taken into account.
Please observe the following precautions:
1. Verify that the crane or hoist being used
has the capacity to lift the recloser
assembly. The weight of the assembly can
be found on the drawings and, if available,
on the physical recloser frame. Never
exceed the lifting capacity of the hoist
or crane.
2. Choose rigging gear that has a capacity
greater than the weight of the recloser
assembly.
3. Only use the provided lifting rings on
the recloser frame to lift the recloser.
4. When using chains and slings for lifting,
exercise extra caution to prevent them
from pushing against the recloser poles.
Applying unusual forces or bending to
the recloser poles can cause permanent
damage. Ensure that the sling angle is
always greater than 45 degrees, and adjust
it if necessary to avoid contact between
the slings and recloser components on
the frame during lifting.
5. Avoid placing the recloser assembly on
uneven surfaces. Take care when moving
the recloser assembly to prevent damage
to the indicator cups located on the
bottom of the recloser.
02

10 GRIDSHIELD®3P/3SP RECLOSER
3.2.1 GridShield®3P (single-tank recloser)
The GridShield 3P recloser is equipped with two
brackets that can be attached to its sides. These
brackets serve as a means to lift the recloser.
It is strongly recommended to use a four-point lift,
using the loops provided in these brackets (refer
to figure 1). If the unit is shipped unassembled,
you will find these brackets in one of the shipping
boxes. If the substation frames are shipped already
assembled, carefully lift the frame off the pallet,
being cautious not to cause any damage to the
poles. Then, position the frame at the desired
location. Afterward, detach the lifting brackets
from the frame and attach them to the recloser
for lifting purposes. It is important to avoid placing
the recloser on an uneven surface to prevent any
potential damage to the open/close indicators.
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01
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01 Lifting a GridShield
3P single-tank recloser
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02 Lifting GridShield
3SP recloser
(compact frame)
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03 Lifting GridShield
3SP recloser
(substation frame)
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04 Lifting GridShield
3SP recloser (cross-
arm frame)
03
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02
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03
3.2.2 GridShield 3SP (three individual poles)
To ensure proper installation of a 3SP recloser,
follow these guidelines:
1. Lift the site-ready unit using either four-point
lifting points (for compact frame) or the center
lifting point (for cross-arm frame).
2. If you're dealing with individual poles, you can
use lifting straps. Alternatively, for a wrap-
around frame, lifting straps can also be used.
3. Refer to the illustrations below for visual
representation.
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04

11RECEIVING, HANDLING AND STORAGE
3.3 Storing the equipment
For long-term storage, it is recommended to store
the cabinets indoors. If either cabinet needs to be
stored outdoors, make sure to activate the anti-
condensation heaters inside the low voltage
control cabinet. It is also recommended to use
a heater in the recloser head, if available.
The GridShield®recloser and the control
cabinet must be stored in an upright position
to avoid moisture buildup.
The low voltage control cabinet includes
rechargeable batteries. These batteries need
to be supplied with power of the correct voltage
and frequency through the charger assembly. It is
advisable to periodically check the battery voltage.
Battery is disconnected for transportation.
Reconnect the batteries prior to use.
If the recloser will not be put into immediate use,
it is crucial to handle and store it properly to help
ensure good operating condition in the future. The
accessories and cables can be stored separately
in a box. For long-term storage, these boxes should
be placed indoors to prevent water accumulation
and rust on the equipment.
03

12 GRIDSHIELD®3P/3SP RECLOSER
04
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4 General description
4.1 Recloser assembly
The GridShield®3P recloser assembly consists
of three individual phase poles mounted on a
common housing (see figure 5). On the other hand,
the GridShield 3SP recloser assembly has three
individual phase poles mounted on their respective
buckets (see figure 6). Both assemblies can
perform single-phase trip and lockout functions.
Each GridShield pole is a separate unit consisting
of a vacuum interrupter and a current sensor. These
components are encapsulated in an advanced
hydrophobic cycloaliphatic epoxy (HCEP) polymer
molded pole assembly, and they are connected
to a magnetic actuator.
There are two different configurations of the
recloser assembly. The 24-pin configuration uses
a 250 V DC actuator, while the 32-/42-pin
configuration uses a 155 V DC actuator. In the
24-pin configuration, the control cabinet includes
the heater pins. In the 32-/42-pin configuration,
a separate heater cable is required to power
the heaters.
For the GridShield 3P units, the main recloser tank
has a connector with either 24 or 32 pins. This
connector is where you connect the control cable.
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05
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06
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07
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05 GridShield 3P
recloser
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06 GridShield
3SP recloser
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07 Junction box
For GridShield 3SP units with a 24-pin or 32-/42-pin
configuration, a junction box should be used (see
figure 7 for reference). In this configuration, the
individual pole cables with 16 pins are connected
to the junction box. The control cable is then
connected to the junction box using a connector.
4.2 Housing
The cover of the recloser housing, known as the
recloser cabinet, can be easily removed. It is
secured in place by six bolts specifically designed
for GridShield 3P. To indicate the position of each
phase, indicators mounted on the floor of the
cabinet can be seen from below. On the right-hand
side of the housing, you will find the recloser
nameplate, which displays important information
such as the rating, serial number, shop order
number and manufacturing date. To prevent
condensation, a heater is included in the recloser
bucket and junction box.
In the 3SP recloser unit, each phase pole is
equipped with its own bucket. Additionally, each
pole has a distinct yellow tripping handle and an
indicator cup located underneath the bucket.

13GENERAL DESCRIPTION
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08 Embedded single
voltage sensing (3VS)
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09 Embedded dual
voltage sensing (6VS)
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10 Integrated dual
voltage sensing (IDVS)
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11 Recloser pole assembly
04
—
08
—
09
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10
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11
4.3 Pole assembly
Figure 11 provides detailed information about the
pole assembly. The top terminal stud is connected
to a capacitive voltage sensor enclosed within
a protective casing. This sensor is directly linked
to the fixed contact stud located at the upper end
of the vacuum interrupter. The current transfer
assembly is secured to the lower end of the vacuum
interrupter. The lateral stud terminal passes
through a ring-type current and capacitive voltage
sensor before exiting the molded assembly.
The transformer’s secondary current output leads,
along with the voltage sensing leads, are also
encapsulated and brought down to a terminal block
mounted on the side of the actuator assembly.
In the case of GridShield®3SP units, these wires
are taken out of their individual compartments
and connected to the junction box. The junction
box serves as an interface with the control cable.
If the control cable is disconnected from the
recloser, the OCP installed across the CT leads
in the recloser cabinet will prevent voltage
buildup on the CT secondary.
For a single voltage sensing unit (3VS), a voltage
sensor is embedded within the horizontal bushing
(see figure 8). In the case of an embedded dual
voltage sensing unit (6VS), both the Y-side
(horizontal) and Z-side (vertical) voltage sensors
are embedded within the HCEP pole (refer to
figure 9). In an integrated dual voltage sensing
unit (IDVS), the horizontal bushing contains one
embedded voltage sensor, while the vertical
bushing features an integrated VLS voltage sensor
(see figure 10). The embedded current transformer
on the horizontal bushings typically has a ratio
of 600:1. However, the embedded dual voltage
sensing unit also offers the option of a 300:1 CT
ratio. The CT ratio is generally set during
manufacturing but can be adjusted in the field.
—
Table 1: CT and voltage sensor ratios
CT
ratio
Voltage
sensor
ratio Y-side
Voltage
sensor
ratio Z-side

Single voltage
sensing
  –

Embedded dual
voltage sensing


 

Integrated dual
voltage sensing
using VLS sensors
  



Current sensing accuracy: ±3% for metering and ±10% for protection.

horizontal and vertical bushings.

14 GRIDSHIELD®3P/3SP RECLOSER
The molded pole assembly is connected to the
magnetic actuator assembly using four hex posts.
The magnetic actuator contains a highly powerful
permanent magnet assembly that keeps the
interrupter closed, even without current in the
actuator coil.
For 24-pin recloser variants, the actuator operates
at 250 V DC, while for the 32-/42-pin variants,
it operates at 155 V DC.
The armature has two stainless steel guide rods.
The upper guide rod, also known as the adjusting
rod, is connected to the lower end of the main
operating rod or pushrod. The pushrod directly
links to the moving contact of the vacuum
interrupter. The lower guide rod, referred to as the
actuator shaft, holds the opening spring, armature
and indicator assembly. When the actuator shaft
moves, it toggles two microswitches that indicate
the recloser status and the status of the yellow
handle to the control cabinet.
It is not recommended to disassemble the
magnetic actuator. Lubrication or maintenance
is unnecessary and will void the warranty.
If the actuator fails to operate, please contact
ABB for service.
4.4 Control
4.4.1 Low voltage control cabinet
A separate weatherproof relay-agnostic control
cabinet houses the low voltage control
components. A hinged panel allows front and rear
access to the control components. Other devices
can be mounted on the sidewalls of the cabinet.
Connections to the recloser are made through
a shielded 24-/32-/42-pin cable. The hinged door
has provisions for a padlock shackle.
For power, communication and control inputs
to the control cabinet, the floor is equipped with
removable access plate and two knockout holes.
A knockout is also provided for a radio antenna
connection. The enclosure also has provisions for
mounting a radio, modem or other user equipment.
Contact your ABB representative for more
information.
The controls operate with 24 V DC and are
connected to two 12 V DC batteries for backup.
The batteries should be checked periodically and
replaced every three to five years. This assumes
an average ambient of 77 F (25 C). Note that the
batteries could take up to 48 hours to fully charge
after initial power up.
Depending on the configuration, the enclosure
contains up to two large actuator-assist capacitors.
They store the energy necessary to ensure proper
operation of the magnetic actuator under all
operating conditions. They also decouple any
dependency on opening and closing due to poor
battery condition (e.g., low charge, high
impedance/shorted cell, missing battery, etc.).
The recloser control comes with a capacitor
discharge switch on the front panel to discharge
the capacitors and remove high voltage before
working inside the control cabinet.
04

15GENERAL DESCRIPTION
4.4.2 Control relay
The standard ABB control cabinet supplied with
the GridShield®recloser includes a relay-agnostic
control cabinet (figure 12). This cabinet comes with
the option of Beckwith M-7679, RER620 or RER615
(for 3-phase operation only). Optionally,
a dedicated RER620 control cabinet is available
with 24-pin option (figure 13). This controller
integrates most of the normal recloser control
functions into a single device, providing a wide
range of protection, control, metering, automation
and remote control options. Additionally,
a complete SEL-651R control cabinet is an option
(figure 14). For details on programming, operating
and testing of the control, please refer to its
respective instruction manual. For details on the
overall control circuit, refer to the specific wiring
diagrams supplied with the recloser.
—
14
—
13
—
12 24-/32-/42-pin relay-
agnostic control cabinet
—
13 24-pin RER620
control cabinet
—
14 SEL-651R
control cabinet
4.4.3 Control cable
The ABB GridShield recloser is equipped with a 24-/
42-pin control cable, specifically designed by ABB.
We strongly advise using the ABB control cable to
ensure precise measurement of current and voltage
by the embedded sensors on the poles and to
optimize the overall performance of the recloser.
If you require a spare control cable or need to replace
your current cable, please reach out to your ABB
sales representative.
—
12
04

16 GRIDSHIELD®3P/3SP RECLOSER
—
5 Operation
All GridShield®reclosers can perform both three-
phase and single-phase trip and close operations.
You can achieve electrical opening and closing
using the associated control. For single-tank units
(3P), you can achieve mechanical opening by pulling
down the yellow trip handle. For 3SP units, you
need to pull down three separate yellow handles,
one per pole, to achieve mechanical opening.
5.1 Closing
When in the open position, the armature is
positioned against a spacer in the actuator
assembly. It remains there due to the force exerted
by the opening spring and a small force generated
by the magnet. When the coil is energized correctly,
it produces a magnetic flux in the same direction
as the magnet assembly. This magnetic force pulls
the armature into the coil, causing it to make
contact with the upper pole piece.
Once the armature is in contact with the upper pole
piece, the coil is no longer energized, and the
magnet alone holds the armature in place. As the
armature is drawn into the coil, the operating rod,
which is connected to the adjustment rod, moves
the moving contact of the vacuum interrupter to
the closed position.
It’s worth noting that the actuator has a greater
range of movement than the vacuum interrupter.
Therefore, the interrupter contacts make contact
before the actuator completes its full stroke.
The additional movement of the operating rod
after the contact closes is necessary to allow the
contact pressure spring to compress at the top
of the operating rod. This extra travel, also known
as contact wipe, accounts for contact wear during
operation and helps maintain low contact
resistance.
5.2 Opening
When the coil is energized with the opposite
polarity, the magnetic flux it produces counteracts
the force generated by the magnet assembly.
As a result, the holding force decreases, and the
armature is released. Subsequently, the opening
spring, with some initial assistance from the
contact pressure spring, propels the operating
rod to the open position.
5.3 Mechanical opening
If the electrical system becomes disabled or
de-energized, the upper recloser unit can be safely
opened using a mechanical method. To manually
open it, simply pull down quickly and firmly on the
yellow trip lever located on the side of the HV unit.
This action will mechanically open all three poles
at the same time.
In the case of a 32-/42-pin single-tank recloser unit,
the yellow trip handle should be turned a full 90
degrees from a horizontal to a vertical position.
This position provides a clear and visible
indication. The recloser unit includes a standard
feature called block close (69 function), which
prevents a local or remote close. The 69 switch
is connected to a relay input and programmed
to block the closing operation. For single-tank
reclosers, the yellow handle mechanically prevents
the closing operation until it is reset.
In 3SP units, each pole has its own individual yellow
trip handle. The handle should be turned at 45
degrees from the horizontal position to activate
the block close (69 function). To perform a manual
mechanical 3-phase open, you need to pull down
each trip handle individually. Alternatively, you can
program the relay to simultaneously open all poles
when any one of the yellow handles is pulled down.
An optional CLOSE BLOCK feature can be added
to enable manual trips.
05

17OPERATION, STANDARD PRODUCTION TESTS
—
6 Standard production tests
(factory only)
The standard production tests for our products
include the following:
1. Verification of wiring: We check all connections
based on the provided diagrams. If the SEL
control system is being used, we test the
wiring through actual operation.
2. Electrical operation: We perform tests to
ensure the proper functioning of the recloser.
This includes closing and tripping operations,
as well as checking the response to overcurrent
events and automatic reclosing.
3. Manual controls: We check all the manual
controls on the RER620, RER615 and Beckwith
M-7679 models. This includes testing local and
remote operation, non-reclosing, ground
disabling and other functions. For SEL control,
we use the default programming to test the
operations using the front-panel pushbuttons.
4. Contact pole resistance: We measure the
contact pole resistance on each phase
of a complete recloser.
5. Voltage withstand test: We conduct a
comprehensive test based on IEC 62271-1
dielectric tests. This test includes checking
insulation between live parts and the tank,
across open contacts and between phases.
The applied test voltage follows ANSI C37.60
standards: 60 kV for a 15.5 kV rated maximum
voltage, 60 kV for a 27 kV rated maximum
voltage and 70 kV for a 38 kV rated maximum
voltage. The test duration is 1 minute, during
which we measure leakage current.
6. Minimum trip test: We verify the minimum trip
capability of the recloser.
7. Partial discharge testing: We perform tests
in accordance with IEC 62271-1 to detect any
partial discharge.
8. Timing tests: We conduct timing tests for each
phase, including measuring close time, open
time and bounce duration.
9. Mechanical operation testing: We perform
manual tripping and carry out 25 open/close
operations to test the mechanical
components.
10. Voltage sensing calibration: We calibrate the
voltage sensing mechanism at the nominal
rated voltage.
11. CT ratio, polarity and metering check:
We check the CT ratio, polarity and metering
accuracy.
06

18 GRIDSHIELD®3P/3SP RECLOSER
—
7 Operational checks prior
to installation
Before energizing the recloser in the power system,
it is important to conduct mechanical and electrical
tests. Ensure that the necessary control power
connections, including the cable between the
recloser and the low voltage control cabinet,
are made beforehand. If needed, remove the cover
of the recloser compartment to observe its
mechanical operations.
The GridShield®recloser and its control cabinet
undergo testing as a complete system. ABB ships
the recloser system together on a single pallet,
unless otherwise specified by the customer. During
installation, make sure to match the control cabinet
with the recloser head with which it was shipped,
because calibrations were performed for the
system during factory testing. If matching is not
possible, please refer to section 8.6 of this manual
for the calibration setting procedure.
After installation, it is necessary to perform basic
voltage and metering checks to verify the phase
ordering, phase assignments, phase angles, phase
rotation and CT polarities. Most of these
parameters can be adjusted physically or through
settings in the relay.
Control cabinets are recloser voltage range
specific. Please contact the factory before
mixing high voltage recloser units and control
cabinets.
Do not ground either side of the battery or
attach ground to the terminals of the actuator
operating coils. This will result in permanent
damage to the unit.
7.1 Electrical close
To operate Beckwith M-7679, follow these steps:
1. Press the phase selection pushbutton to
choose the correct phases for operation.
2. Press the CLOSE pushbutton to initiate the
closing action.
3. The LED next to the CLOSE pushbutton
indicates the status of the recloser.
4. You can adjust the pulse duration for the
closing command using the relay settings.
For RER620 and RER615, follow these guidelines:
1. Verify the close status by checking the red LED
beside the CLOSE pushbutton.
2. If the relay is programmed for single-phase
tripping, a menu will appear on the LCD screen,
displaying choices for each phase.
3. You can control the pulse duration for the
closing command through relay settings.
4. In case of a malfunction, the OPEN and CLOSE
LEDs on RER620 and RER615 will blink
alternately in red and green.
5. If both OPEN and CLOSE LEDs are off, it means
the recloser is in a single-phase mode, where
some phases are open and others are closed.
7.2 Electrical trip
Beckwith M-7679 on standard
ABB control cabinet:
To operate the Beckwith M-7679, you need to press
the phase selection pushbutton to choose the
correct phases. Then, press the OPEN pushbutton.
The LED next to the OPEN pushbutton indicates
the status of the recloser. You can adjust the
duration of the closing command by changing
the relay settings.
07

19OPERATIONAL CHECKS PRIOR TO INSTALLATION
07
RER620 and RER615 on standard
ABB control cabinet:
To check the open status of RER620 and RER615,
look for the green LED next to the CLOSE
pushbutton. If the relay is set to single-phase
tripping, a menu will appear on the LCD screen
with options for each phase. You can control the
duration of the opening command through relay
settings. In case of a malfunction, the OPEN and
CLOSE LEDs on RER620 and RER615 will alternate
between blinking red and green. If both LEDs are
off, it means the recloser is in a single-phase mode,
where some phases are open and others are closed.
For IEC applications, the open/close status
colors are reversed.
7.3 Programmable pushbuttons
The GridShield®standard control cabinet provides
various options, including RER620, RER615 and
Beckwith M-7679. It works in conjunction with an
actuator control module (ACM) to facilitate open/
close operations on the recloser unit. The cabinet
includes essential features, such as reclosing,
hot line tagging, ground disabling and additional
spare pushbuttons for customization.
The GridShield 24-pin control cabinet with RER620
includes a front panel with control pushbuttons
for various standard recloser functions. These
functions activate an adjacent LED to provide
indication. Below the standard functions are pre-
programmed pushbuttons PROG1 and PROG2. The
functions assigned to these buttons are as follows:
• PROG 1: Battery test (typical) — This function
is applicable when batteries are present in the
control cabinet and the RER620 includes the UPS
module. If the battery test fails, a “Battery Failed”
message will appear. Other assignable functions
include enabling/disabling sensitive earth fault
(SEF) through the RER620 controller or user-
specific logic-based functions.
• PROG 2: No setting (typical) — Assignable
functions include enabling/disabling single-
phase tripping functionality, enabling switch
mode (which allows the recloser to operate as
a simple switch without protection capabilities)
or user-specific logic-based functions.
For detailed information on pushbutton functions
for the SEL-651R, please refer to the SEL-651R
instruction manual.
7.4 Vacuum test procedure
To ensure that the vacuum seal of each interrupter
has not been compromised during transportation
or handling, it is recommended to conduct a
dielectric (hi-pot) test. Experience has shown that
a vacuum interrupter with an intact vacuum seal
can withstand 37.5 kV AC when the contacts are
open. However, the same interrupter, when
exposed to normal atmosphere, will experience
a flashover at a significantly lower voltage.
Radiation warning: It is important to note that
applying high voltage across an open gap in a
vacuum can generate X-ray radiation. However,
no radiation is emitted when the recloser is closed
because there is no gap. Additionally, when the
recloser is open within the specified contact
spacing and tested with the specified voltages, the
X-ray radiation at a distance of one meter is below
the level of concern. However, there may be a danger
of radiation exposure at voltages above or contact
spacing below those specified on the nameplate.
High voltage applied across an open gap
in a vacuum can produce X-ray radiation.
Following is a general guideline for conducting
vacuum integrity testing on the recloser poles:
1. With the recloser in the open position, connect
the three top terminals together and connect
the three lateral terminals. Ground both the
lateral terminals and the housing. Apply the
high voltage to the top terminals.
2. Ensure that you stand at a safe distance
of more than one meter away before energizing
the high voltage source.
3. Do not exceed 37.5 kV AC for any recloser
voltage class. The applied voltage should not
be sustained for more than 60 seconds.
Do not use DC voltage for hi-pot testing.
Applying DC voltage for hi-pot testing is more
destructive and, therefore, is not recommended.
4. If an internal flashover occurs, isolate the phases
and independently test each one to identify the
defective interrupter. Any pole assembly found
to be defective must be replaced before putting
the recloser into service.

20 GRIDSHIELD®3P/3SP RECLOSER
—
8 Installation
The GridShield®recloser can be installed in
different ways — within a substation frame, a pole-
mounting frame or a structure provided by the
customer. Regardless of the chosen method, it is
important to ensure that the recloser is mounted
vertically, level and securely fastened. Follow your
company guidelines and relevant codes to
determine the appropriate height for the recloser,
secure the frame to the pole or foundation and
make the necessary connections.
Please note that it is acceptable to loop extra
control cable, but do not pass any conductors
or grounds through the control cable loop. It is
generally recommended to keep the ground away
from the control cable as much as possible to
prevent any induced voltage in the control cable
due to grounding.
The bend radius of the control cable is 7 inches.
Do not bend the cable more than a radius
of 7 inches to avoid damage to the cable.
The H1 and H2 terminal spade connectors
are equipped with 3/8" silicon bronze
fasteners, which must be torqued to between
15–20 ft-lbs.
8.1 Mounting
The recloser can be shipped with three different
mounting options — a pole-mounting frame, a
substation frame or no frame at all. The following
section outlines the recommended installation
procedure for each type of frame.
8.1.1 Pole mounting
To install single-tank recloser pole frames (see
figures 15 and Figure 17), follow these steps:
1. Attach the lifting brackets (see figure 16)
to the sides of the recloser according to
the lifting instructions.
2. If the frame is not pre-assembled when
shipped, assemble it on a flat surface
following the provided instructions. Pay
close attention to the drawing, and ensure
that the correct bracket is used to mount
the recloser frame to the pole.
08
—
17
—
16
—
15 Pole-mounting
assembly drawing
(front view)
—
16 Recloser lifting
bracket
—
17 Pole-mounting
assembly drawing
(side view)
—
15