XCA Test Probes and Plugs - Legacy
Manufacturing for XCA has been discontinued.
Three different XCA test plugs are available to provide an easy means of testing C-case drawout relays without removing them from their cases.
XCA Test Probes and Plugs - Legacy
Manufacturing for XCA has been discontinued.
Three different XCA test plugs are available to provide an easy means of testing C-case drawout relays without removing them from their cases.
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PK-2 Test Blocks and Plugs
Type PK-2 test blocks are essentially 4-pole and 6-pole jacks, provided with molded Textolite covers that have internal plug contacts, which make a through connection when the cover is in place. The contacts in the blocks are of the line- pressure type and provide positive contact with minimum contact resistance. For all current circuits, auxiliary contacts are used which automatically short circuit the current transformer when the cover, or plug is removed.
PK-2 Test Blocks and Plugs
Type PK-2 test blocks are essentially 4-pole and 6-pole jacks, provided with molded Textolite covers that have internal plug contacts, which make a through connection when the cover is in place. The contacts in the blocks are of the line- pressure type and provide positive contact with minimum contact resistance. For all current circuits, auxiliary contacts are used which automatically short circuit the current transformer when the cover, or plug is removed.
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P990 Series
P990 Series
The P991 Test Block, designed as part of the MiCOM range, offers safe and configurable facilities for monitoring and secondary injection testing in any power system protection scheme when used with the P992 multi-finger Test Plug. A single-finger test plug is also available (type P993) that provides a safe and isolated means solely for the verification of CT circuits.
P990 Series
P990 Series
The P991 Test Block, designed as part of the MiCOM range, offers safe and configurable facilities for monitoring and secondary injection testing in any power system protection scheme when used with the P992 multi-finger Test Plug. A single-finger test plug is also available (type P993) that provides a safe and isolated means solely for the verification of CT circuits.
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P990 Series
The P991 Test Block, designed as part of the MiCOM range, offers safe and configurable...
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MMLB / MMLG
Designed as part of the Midos range, these test blocks offer facilities for monitoring and secondary injection testing of any power system protection scheme when used with the multi-fingered test plug type MMLB 01.
The MMLG test block carries 14 circuits, each of which is brought out to separate pairs of terminals at the rear of the case.
Each circuit comprises a pair of internal contacts which are normally sprung together to complete the circuit link through the block when the associated protective equipment is in normal service.
MMLB / MMLG
Designed as part of the Midos range, these test blocks offer facilities for monitoring and secondary injection testing of any power system protection scheme when used with the multi-fingered test plug type MMLB 01.
The MMLG test block carries 14 circuits, each of which is brought out to separate pairs of terminals at the rear of the case.
Each circuit comprises a pair of internal contacts which are normally sprung together to complete the circuit link through the block when the associated protective equipment is in normal service.
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MMLB / MMLG
Designed as part of the Midos range, these test blocks offer facilities for monitoring...
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HGA Hinged Armature Auxiliary Relay
The Type HGA hinged armature auxiliary relays are designed to provide additional contacts, higher contact carrying and interrupting ratings, timing, interlocking, electrical separation, or other auxiliary functions.
HGA Hinged Armature Auxiliary Relay
The Type HGA hinged armature auxiliary relays are designed to provide additional contacts, higher contact carrying and interrupting ratings, timing, interlocking, electrical separation, or other auxiliary functions.
NGA Auxiliary Relay
The Type NGA15 is the general designation for a family of telephone- type DC auxiliary relays mounted in a small molded case similar to Type HGA relays. These auxiliary relays are available with several different contact arrangements and operating times. All models are continuously rated. Some have a surge limiting diode circuit for the operating coil as noted in the Selection Guide.
NGA Auxiliary Relay
The Type NGA15 is the general designation for a family of telephone- type DC auxiliary relays mounted in a small molded case similar to Type HGA relays. These auxiliary relays are available with several different contact arrangements and operating times. All models are continuously rated. Some have a surge limiting diode circuit for the operating coil as noted in the Selection Guide.
HMA Hinged Armature Auxiliary Relay
The Type HMA relay is an instantaneous auxiliary device whose contacts are opened and closed by the movement of a hinged armature.
Type HMA Century Series auxiliary relays are designed to provide additional contacts, higher contact carrying and interrupting ratings, timing, interlocking, electrical separation and other auxiliary functions.
The Century Series coil design provides longer operating life than previous designs as a result of changes in the entire coil insulation system.
HMA Hinged Armature Auxiliary Relay
The Type HMA relay is an instantaneous auxiliary device whose contacts are opened and closed by the movement of a hinged armature.
Type HMA Century Series auxiliary relays are designed to provide additional contacts, higher contact carrying and interrupting ratings, timing, interlocking, electrical separation and other auxiliary functions.
The Century Series coil design provides longer operating life than previous designs as a result of changes in the entire coil insulation system.
HFA Multicontact Auxiliary Relay
The type HFA relay is designed for applications where a number of auxiliary functions must be performed simultaneously. Six contacts are provided. If more than six circuits are to be controlled, the coils of two or more relays may be connected in series (DC only) or in parallel.
HFA Multicontact Auxiliary Relay
The type HFA relay is designed for applications where a number of auxiliary functions must be performed simultaneously. Six contacts are provided. If more than six circuits are to be controlled, the coils of two or more relays may be connected in series (DC only) or in parallel.
HAA Auxiliary or Annunciator Relay
Generally two specific forms of the HAA are available, a current operated unit and a voltage operated unit. Example: HAA15A4 is 0.2/2 A DC and the HAA15B5 is a 125 VDC unit. Also, two general case designs are available. The single units such as HAA 15 use a molded plastic case with glass window and all others the standard drawout case.
HAA Auxiliary or Annunciator Relay
Generally two specific forms of the HAA are available, a current operated unit and a voltage operated unit. Example: HAA15A4 is 0.2/2 A DC and the HAA15B5 is a 125 VDC unit. Also, two general case designs are available. The single units such as HAA 15 use a molded plastic case with glass window and all others the standard drawout case.
HSA Multicontact Hand Reset Auxiliary Relay
The type HSA high-speed multicontact, auxiliary relays are applicable where it is desired that a number of operations be performed simultaneously from the operation of a single relay.
Features and Benefits
- Electrically separate contact outputs
- Universal target dropping
- Mechanical target
- High seismic capability
Applications
- Contact multiplication
Protection and Control
- Trip and/or block close circuit breaker control
HSA Multicontact Hand Reset Auxiliary Relay
The type HSA high-speed multicontact, auxiliary relays are applicable where it is desired that a number of operations be performed simultaneously from the operation of a single relay.
Features and Benefits
- Electrically separate contact outputs
- Universal target dropping
- Mechanical target
- High seismic capability
Applications
- Contact multiplication
Protection and Control
- Trip and/or block close circuit breaker control