GES-MELP metal enclosed capacitor assemblies can offer cost savings over open-type capacitor and competitive assemblies in several ways:
- More KVAR can be furnished in a smaller area saving in "real-estate" costs.
- The assemblies come pre-assembled and installation site assembly is minimal allowing a substantial savings in labor and equipment costs.
- The enclosure is tamper resistant and meets ANSI standard C57.12.28 enclosure integrity requirement providing safety for operating personnel. Also, reduces operating costs by protecting the equipment from wildlife and mischievous vandalism.
- The tamper resistant feature allows the assembly to be placed in a non-fenced area saving cost and reduces space limitations.
- The enclosure is durable 11gage welded sheet steel with positive three point latched doors.
- Enclosure is painted with DuPont Powder Coat paint.
- Application versatility with the addition of many options and controls within the assembly.
- Assemblies can be placed indoor as well as outdoor locations.
GES-MELP basic options are, but not limited to, the following:
- Bank connections: grounded wye, ungrounded wye or delta.
- Single-phase capacitors through 14.4KV or three phase capacitors through 13.8KV are available.
- Vacuum or oil switches (vacuum contactors for 5KV applications) for automatic switching.
- Incoming cable arrangements for livefront underground entrance or deadfront with radial or loop feed.
- Control power transformer.
-
Current limiting reactors (GES built).
- Surge arresters.
- Key interlocks.
- Pentahead-bolted doors.
- Standard paint Guardian green finish-paint Munsell 7.0GY3.29/1.5. ANSI gray 61, or 70 are also available. Other colors can be furnished.
- Standard material is 11-gage mild steel. Galvaneal steel is available.
Gilbert Electrical Systems MELP capacitor assemblies are furnished with field-proven highly reliable all-film capacitors. The capacitors are designed with low operating temperature, reduced tank rupture hazard and are properly fused.
Assemblies using single-phase capacitors through 14.4KV or, three-phase capacitors through 13.8 KV are available as standard.
Standard assemblies are available as low as 50 KVAR and as large as 3000 KVAR for 5 to 15 KV applications.
To request a quotation or order a Gilbert Electrical Systems MELP transclosure capacitor assembly, use the tables below to construct a catalog number, which will describe your requirement.
Table 1. Specifies the code describing the installed Kvar and system voltage.
Table 2. Specifies the code describing the required bank connection.
Table 3. Specifies the code describing the switch options.
Table 4. Specifies the code for the incoming cable configuration.
Table 5. Specifies the code that describes the optional equipment available as standard.
Table 1 - Codes for Three-Phase Installed Kvar and System Voltage |
Capacitor |
Capacitor Bank Three Phase Kvar Rating |
Line-to-line |
50 |
100 |
150 |
200 |
250 |
300 |
400 |
450 |
600 |
900 |
1200 |
1500 |
1800 |
2400 |
3000 |
Voltage |
Code |
2400 |
A01 |
B01 |
C01 |
D01 |
E01 |
F01 |
G01 |
H01 |
I01 |
J01 |
K01 |
L01 |
M01 |
N01 |
O01 |
Note 3 |
2770 |
A02 |
B02 |
C02 |
D02 |
E02 |
F02 |
G02 |
H02 |
I02 |
J02 |
K02 |
L02 |
M02 |
N02 |
O02 |
4160 |
A03 |
B03 |
C03 |
D03 |
E03 |
F03 |
G03 |
H03 |
I03 |
J03 |
K03 |
L03 |
M03 |
N03 |
O03 |
4800 |
A04 |
B04 |
C04 |
D04 |
E04 |
F04 |
G04 |
H04 |
I04 |
J04 |
K04 |
L04 |
M04 |
N04 |
O04 |
6600 |
A05 |
B05 |
C05 |
D05 |
E05 |
F05 |
G05 |
H05 |
I05 |
J05 |
K05 |
L05 |
M05 |
N05 |
O05 |
7200 |
A06 |
B06 |
C06 |
D06 |
E06 |
F06 |
G06 |
H06 |
I06 |
J06 |
K06 |
L06 |
M06 |
N06 |
O06 |
12470 |
A07 |
B07 |
C07 |
D07 |
E07 |
F07 |
G07 |
H07 |
I07 |
J07 |
K07 |
L07 |
M07 |
N07 |
O07 |
13200 |
A08 |
B08 |
C08 |
D08 |
E08 |
F08 |
G08 |
H08 |
I08 |
J08 |
K08 |
L08 |
M08 |
N08 |
O08 |
13800 |
A09 |
B09 |
C09 |
D09 |
E09 |
F09 |
G09 |
H09 |
I09 |
J09 |
K09 |
L09 |
M09 |
N09 |
O09 |
14400 |
Note 2 |
B10 |
C10 |
D10 |
E10 |
F10 |
G10 |
H10 |
I10 |
J10 |
K10 |
L10 |
M10 |
N10 |
O10 |
| Note 1: 50 Kvar, 100 Kvar, 200 Kvar, 250 Kvar, and 400 Kvar Three Phase Capacitor Banks will utilize three phase capacitor units. |
| All other capacitor banks will utilize single phase capacitor units. |
| Note 2: Consult Gilbert Electrical Systems for this rating. |
| Note 3: Fixed bank only. Consult Gilbert Electrical Systems for a switched bank alternative. |
Table 2 - Bank Connections |
| Description |
Code |
| Ungrounded Wye |
U |
| (for 3 phase, 3 or 4 wire systems) |
| Grounded Wye |
G |
| (for 3 phase, 4 wire multi grounded only) |
| Delta |
D |
| (for 3 phase, 3 wire systems only) |
Table 3 - Switch Options |
| Description |
Code |
| Switched with three Single phase 200 amp Oil Switches. Refer to Table 9 for Switch Information. |
F |
| Switched with three Single phase 200amp Vacuum Switches. Refer to Table 9 for Switch Information. |
V |
| Switched with three phase Vacuum contactor (Note 1). Refer to Table 8 for Contactor Information. |
C |
| Fixed bank: No switches |
N |
| Note 1: Indicates for use on systems up to 5kv |
Table 4 - Incoming Cable Configurations |
|
|
| Description |
|
Code |
| Livefront underground entrance. Includes: |
|
LF |
| -provisions for three |
|
|
| -single phase terminators |
|
|
| -supplied by others |
|
|
| Deadfront radial feed using three 200 amp bushing wells. (Note 1) |
|
DF |
| Deadfront, loop-feed Six 200 amp bushing Wells. (Note 1) |
|
DL |
| Note 1: These devices are to be used for visible disconnection only; they are not designed for capacitor-load switching. |
|
|
Table 5 - Optional Equipment |
| Description |
Code |
| Group operated three phase disconnect switch with front operator. (Note 1) |
S1 |
| Group operated three phase disconnect switch with side operator. (Note 1) |
S2 |
| Group fusing in addition to capacitor fuses. |
GF |
| Current limiting reactors 40 microhenries, 160 amps GES Cat #43893 |
R |
| Surge Arresters (Set of three Distribution-class) |
SA |
| Key interlock scheme |
K |
| Pentahead-bolt doors |
P |
| Control Power Transformer 120Vac secondary |
T |
| Unbalance Detection |
U |
| No Optional Equipment required |
Z |
| Controller: |
| |
Voltage............................................. |
VC |
| |
Current............................................. |
CC |
| |
Temperature...................................... |
TC |
| |
Time Clock........................................ |
TT |
| |
Power Factor..................................... |
PFC |
| |
Var................................................... |
VAR |
| |
Multifunction...................................... |
MFC |
| |
Manual............................................. |
MAN |
Paint: |
| |
Guardian Green................................. |
GG |
| |
Gray ANSI 61.................................... |
GR |
| |
Light Gray......................................... |
LG |
| Enclosure: |
| |
11 gauge mild steel (standard)............. |
MS |
| |
pickled & oiled steel.......................... |
GS |
| Note 1: Switches are provided for visible break only. |
Constructing a Catalog Number
The chart below shows how to construct the catalog number for the series MELP capacitor assembly with the following requirements:
-
7200/12470 volt 2400Kvar three –phase
-
Three phase, three wire system – Ungrounded-wye connected bank
-
Switched with 200 amp vacuum switches
-
Control Power Transformer
-
Manual controls
-
Livefront with provisions for three single conductor terminators.
-
Key-interlock scheme
-
Guardian Green Paint
-
Pickled & oiled steel enclosure painted with DuPont Powder Coat paint
MELP- Basic letters for series MELP metal enclosed capacitor assembly
N06
- Installed three-phase Kvar and voltage rating code; select from table 1.
U
– Bank connection code; select from table 2
V
- Switch option code; select from table 3
LF -
Incoming cable configuration; select from table 4
K-T-MAN-GG-GS -
Optional equipment codes: select from table 5
The complete catalog number would be:
MELP-N06UVLF-K-T-MAN-GG-GS