Test Switches

1
Test Switches Plugs
Type FT
Type RT
Type PK-2
2
Agenda

• What are Test Switches Test Plugs?
• 10 Pole FT Test Switches
• Features Uses
• Design Details
• Selection Ordering Information
• Typical Connection Diagram
• 10 Pole FT Test Plugs
• In-Service Series Application
• Separate Source Application
• Typical FT Test Switch Installations
• RT Rack Mounted Test Switches
• ABB to ITI Cross Reference for FT Test Switches
• 4 6 Pole PK-2 Test Blocks and Plugs

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What are Test Switches Test Plugs?
Test Switches are devices designed for mounting
on switchboard panels for use in conjunction
with proper test equipment to facilitate the
testing of instruments, meters, and relays.
Test Plugs are multi circuit devices designed to
be used with test switches to enable easy
measurement, calibration, verification or
maintenance of instruments, meters, and relays.
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FT Test Switches
Consist of (2) components
10 Pole FT Test Switch
10 Pole FT Test Plug
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10 Pole FT Test Switch -- Features Uses
Semi-flush mounted in front panel Rear
termination provisions Configurable to meet
customer requirements Black or clear (optional)
safety cover Provisions for meter type
seal Isolate relay inputs outputs for
injection of current voltage from separate
sources (Use Separate Source Test Plug)
Measure system currents voltages during
field testing commissioning (Use In-Service
Series Test Plug)
FTC-066 Test Switch with clear cover FT-066 Test
Switch with black cover
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10 Pole FT Test Switch
ITI P/N FT-099
Front view with cover removed Blades open 10
Poles labeled A thru J
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FT Test Switch Rear terminals
Threaded rear terminals Terminal numbers molded
into base Nickel plated brass pan head screws,
flats, locks supplied loose Threaded studs
and hex nuts available as option
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FT Pole Assemblies
P Potential
C-C Current Shorting (2-Poles Required)
C Current Non-Shorting
C-C-C Current Shorting (3-Poles Required)
C-C-C-C Current Shorting (4-Poles Required)
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10 Pole FT Test Switch Typical Selection table
(Note poles A through JReference slide 4)
Schematic Symbols
P Potential (Poles A, B, J)
C Current Non-Shorting (Pole C)
C-C Current Shorting (2-Poles
Required) (Poles D-E, F-G, H-I)
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FT Test Switch Potential Pole P
Non-Shorting Blade used for voltage and trip
circuits
Rear Termination Provision
Blade assembly of (1) position potential pole (P)
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FT Current Shorting Pole C-C
Non-Shorting Blade with Current Test Jack
Shorting Blade
Bottom cam of the shorting blade makes contact
with the shorting spring of the pole to the right
before disengaging from the jaw (Make before
break contact)
Jaw
Rear Termination Provision
Shorting Spring from Non-Shorting Pole to Right
Blade assembly of (2) position current shorting
pole with current test jack (C-C)
Lets take a look at the current test jack pole
to the right
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FT Non-Shorting Current Pole C
Non-Shorting Blade (Open)
Current Test Jack for insertion of current test
probe
Jaw
Rear Termination Provision
Blade assembly of non-shorting current pole with
current test jack (C) --- Part of 2-pole (C-C)
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FT Test Switch Handles
Molded slot for circuit identification card
Optional interlocking bar kit
(3) Potential blades tied together with
interlocking bar kit
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FT Test Switch Part Number System
See next slide for typical selection chart
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Typical FT Test Switch Test Plug Selection
Chart
(2) Pole Current Shorting with Test Jack
Position F-G
Potential Pole Position A
In-Service Series Test Plug Part Number
Test Switch Part Number FT-066
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Non-Standard FT Test Switch Specification Form
Step 1
The switch body can support 1 to 10 poles in
slots marked A through J. Enter a letter from the
legend. Leave unused slots blank.
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
A
Example
C
C-
-C
R-
-R-
-R-
-R
P
P
P
Legend P Potential, Black T Potential, Red
O Potential, Orange Y Potential, Yellow G
Potential, Green B Potential, Blue W
Potential, White C Current, Non-shorting,
Black R Current, Non-shorting, Red C--C,
C--C--C, C--C--C--C Current, Shorting with
current test jack right most position,
Black R--R, R--R--R, R--R--R--R Current,
Shorting with current test jack right most
position, Red CO Current, Orange CY Current,
YellowCG Current, Green CB Current, Blue
CW Current, White Note Some functions will
require more than one slot in the switch body
Step 2
If a tie bar is required check this box and draw
a dark heavy line over the poles to be joined. In
the example above positions H, I, J will
operate together.
Step 3
Select a cover style
Clear (Installs over open or closed switches)
Black (Installs over closed switches only)
Step 4
Select a rear terminal type
Screws (Standard)
Studs (Optional)
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10 Pole FT Test Switch Typical Connection
FT-076
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10-Pole In-Service Series Test Plug
Used in conjunction with 10-pole test switch
Various designs to match specific 10 pole test
switches Used to connect devices to measure
currents voltages being applied to the
switchboard relays meters without interrupting
or short circuiting the circuit
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In-Service Series Test Plug Application
FT Test Switch
Circuit detail of FT test switch prior to
insertion of In-Service Series Test Plug
Existing Meter or Relay
Bi-Conductor Paddle Leads
FT Test Switch
Circuit detail of FT test switch after insertion
of In-Service Series Test Plug connection of
external instruments
External Current Measuring Instruments
Existing Meter or Relay
Instrument Ground Use Potential Stab
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10-Pole Separate Source Test Plug
Currently Not Available from ITI
Used in conjunction with 10-pole test switch
Used to isolate and connect the out of service
relays or switchboard devices to external test
instruments
ABB Part Number 1164046
States Part Number FTP10-10
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Separate Source Test Plug Application
FT Test Switch
Circuit detail of FT test switch prior to
insertion of Separate Source Test Plug
Existing Meter or Relay
Bi-Conductor Paddle Lead to External Current
Supply
FT Test Switch
Circuit detail of FT test switch after insertion
of Separate Source Test Plug connection of
external current supply
Separate Source Current Supply
Existing Meter or Relay
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FT Switches Typical Installations
MV Switchgear
Relay / Control Panels
MV MCC
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Multilin Standard RT Model
Black panel 19 inches wide x 5.22 high
Up to (3) type FT Switches per panel
Meter seal provisions
Full width clear cover handles either open or
closed
Access to panel mounting hardware prevented with
cover installed
Padlock provisions
Clear safety shield at rear screw terminal area
Part number system
RT LLL CCC RRR
Right FT suffix
Center FT suffix
Left FT suffix
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Optional RT Models Available
Full width clear cover handles either open or
closed
Up to (3) type FT switches per panel
Panel heights 3.47 5.22 5.22 offset 6.97
Panel colors ANSI 61 49 gray Brushed aluminum
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Part number system for optional RT models
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FT Test Switch - ABB to ITI Cross Reference ()
Consult factory for other part numbers
() This cross reference is intended to be
accurate however, all equivalent part numbers
are based on available competitor product data
only. Therefore this cross reference should be
used as a guide only. All recommended ITI
configurations to be confirmed by customer before
placing orders.
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PK-2 Test Blocks Plugs
4 6 Pole PK-2 Test Block
4 6 Pole PK-2 Test Plug
P/N 6422120G1 4-Pole surface mount on 1 to 2
inch panels P/N 6422120G2 6-Pole surface mount
on 1 to 2 inch panels P/N 6422120G3 4-Pole
semi-flush on 0.12 inch panels surface mount on
0.12 to 0.5 inch panels P/N 6422120G4 6-Pole
semi-flush on 0.12 inch panels surface mount on
0.12 to 0.5 inch panels
P/N 6129533G1 4-Pole P/N 6129533G2 6-Pole
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PK-2 Test Blocks Features Uses
Semi-flush or surface mounted Cover removal
automatically shorts current circuits Rear
termination provisions Provided with unmounted
auxiliary contacts, jumpers, and hardware for
field installation into test block Reference
application data for typical arrangements of
contacts jumpers http//www.multilin.com Type
PK-2 in search Select PK-2 test Blocks and
Plugs Product Information Select
Brochures Routine testing accomplished by
removing cover and inserting the properly
connected test plug Normal connections
restored by replacing cover
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PK-2 Test Blocks
3
1
4
6-Pole Test Block with Cover Removed (Component
parts defined below)
2
Legend

• Auxiliary Contact Maintains circuit with cover or
  plug not installed
• Auxiliary Contact Short circuits CT with cover or
  plug not installed
• Jumper Used with contacts (2) or (4) -- short
  circuits CT or interconnects phases when
  cover-fastening stud is to be bypassed
• (4) Auxiliary Contact Equal to one pole of
  contact (2) used with jumper (3)

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PK-2 Test Plugs
Test Links supplied with plug (4) with the
4-pole (6) With the 6-pole Links can be
installed vertically or horizontally Refer to
application data for typical test link
arrangements http//www.multilin.com Type PK-2
in search Select PK-2 test Blocks and Plugs
Product Information Select Brochures
Test Links
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QUESTIONS