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Fuse#

( Circuit Element, Control Element )

EPRI’s OpenDSS Documentation for this component: https://opendss.epri.com/Fuse.html

#

Name

Type

Default

Units

Description

1

MonitoredObj

string
(CktElement name)

Full object name of the circuit element, typically a line, transformer, load, or generator, to which the Fuse is connected. This is the “monitored” element. There is no default; must be specified.

2

MonitoredTerm

integer

1

Number of the terminal of the circuit element to which the Fuse is connected. 1 or 2, typically.

3

SwitchedObj

string
(CktElement name)

Name of circuit element switch that the Fuse controls. Specify the full object name. Defaults to the same as the Monitored element. This is the “controlled” element.

4

SwitchedTerm

integer

1

Number of the terminal of the controlled element in which the switch is controlled by the Fuse. 1 or 2, typically. Default is 1. Assumes all phases of the element have a fuse of this type.

5

FuseCurve

string
(TCC_Curve name)

tlink

Name of the TCC Curve object that determines the fuse blowing. Must have been previously defined as a TCC_Curve object. Default is “Tlink”. Multiplying the current values in the curve by the “RatedCurrent” value gives the actual current.

6

RatedCurrent

real

1.0

Multiplier or actual phase amps for the phase TCC curve.

7

Delay

real

0.0

s

Fixed delay time added to Fuse blowing time determined from the TCC curve. Used to represent fuse clearing time or any other delay.

8

Action

string
(from enum. Action, action)

DEPRECATED. See “State” property.

9

Normal

array of strings
(from enum. State)

ARRAY of strings {Open | Closed} representing the Normal state of the fuse in each phase of the controlled element. The fuse reverts to this state for reset, change of mode, etc. Defaults to “State” if not specifically declared.

10

State

array of strings
(from enum. State)

[closed, closed, closed]

ARRAY of strings {Open | Closed} representing the Actual state of the fuse in each phase of the controlled element. Upon setting, immediately forces state of fuse(s). Simulates manual control on Fuse. Defaults to Closed for all phases.

11

BaseFreq

real

Hz

Base Frequency for ratings.

12

Enabled

boolean

True

Indicates whether this element is enabled.

13

Like

string
(Fuse name)
deprecated

Make like another object, e.g.:

New Capacitor.C2 like=c1 …

Enumerations#

Fuse: Action#

Value

close

open

Fuse: State#

Value

closed

open