Load bank
First Claim
Patent Images
1. A portable load bank for loading a generator during a generator test comprising, in combination, a housing;
- and electrical plug mounted to said housing and having a set of terminals;
a plurality of electrically conductive coils mounted side by side within said housing in series circuit;
switch means for electrically connecting said plurality of coils across at least two of said plug terminals; and
electrically powered fan means coupled with said plug for circulating air through said housing in cooling said plurality of coils when conducting current while electrically connected across said two plug terminals by said switch means.
0 Assignments
0 Petitions
Accused Products
Abstract
A portable load bank for loading a generator during a generator test has a set of low resistance coils mounted side by side in a housing and air cooled by a bank of fans. A switching network is provided for testing generators at three discrete load levels. An interlock circuit is provided for safety.
22 Citations
12 Claims
-
1. A portable load bank for loading a generator during a generator test comprising, in combination, a housing;
- and electrical plug mounted to said housing and having a set of terminals;
a plurality of electrically conductive coils mounted side by side within said housing in series circuit;
switch means for electrically connecting said plurality of coils across at least two of said plug terminals; and
electrically powered fan means coupled with said plug for circulating air through said housing in cooling said plurality of coils when conducting current while electrically connected across said two plug terminals by said switch means. - View Dependent Claims (2)
- and electrical plug mounted to said housing and having a set of terminals;
- 3. A compact, lightweight, portable load bank for loading an a.c. generator during a generator test, and with the load bank comprising a housing to which first and second terminals are mounted, low resistance conductive means connected across said first and second terminals through a silicon controlled rectifier, and switch means for gating said silicon controlled rectifier on to cause the load bank to operate on a half-duty cycle by drawing current through the low resistance conductive means during one-half of the cycles of the a.c. generator output.
-
7. A load bank for loading an a.c. generator during a generator test, and with the load bank comprising a housing to which a plug is mounted having first, second and third terminals;
- a first low resistance conductor mounted within said housing and electrically connected with said first terminal;
a second low resistance conductor mounted within said housing and electrically connected with said second terminal;
a third low resistance conductor mounted within said housing and electrically connected with said third terminal; and
switching network means for selectively connecting together said first and second conductors through first unidirectional current carrying means, and said second and third conductors through second unidirectional current carrying means, and said first and third conductors through third unidirectional current carrying means, whereby the generator may be loaded at three discrete levels with the full load level being on a full duty cycle basis. - View Dependent Claims (8, 9, 10, 11, 12)
- a first low resistance conductor mounted within said housing and electrically connected with said first terminal;
Specification